[ECHO ARCHIVE · LAYER 2 · 74.2% DECODED · KEY: A LINE FROM EPISODE 3 OF THE 1987 TV SERIAL IRON BRIDGE]
Ye Zhen's things weren't one notebook. They were three loose-leaf binders.
The first held those thirty-seven seconds. She had taken the obituary listings apart into lines, one person per line, copied onto grid paper, one character to a square; at each line's upper-left corner, the frame number and the seconds: A-014 / 00:12:31.4. The second held her verification: which names could be found, which couldn't, and for those that could, which year, which public record. The third was the thinnest—four pages of her own questions, the bottom half of every page blank.
Handing them over took twenty minutes. Shen Yi brought a cardboard box lined with old foam, one corner of the foam gone.
"Recovery," he said. "Transcriptions, screenshots, notes. All of it."
"I'll hand them over," Ye Zhen said. "I want a receipt stating the number of binders and the page count of each."
"Fine."
"One more thing," she said. "The names already entered in the index database. Do they count."
Shen Yi looked at her for two seconds.
"They count."
The name index locked that same afternoon. The permissions group changed from "this institute" to the name of a four-country joint group, long; I never did memorize all of it. Ye Zhen tried twice: the first time she took it for the network and went to the machine hall to reboot a switch; the second time she didn't reboot anything—she closed the browser, sat a while, then switched off the microfilm reader's lamp and pushed the machine back into place, its body parallel to the table edge.
She switched to places. Obituaries off-limits, she said; names off-limits; what's left is locations. She began entering every readable doorplate, street sign, shop sign, and vehicle-body lettering from every frame into a database, sorted into her own columns: administrative districts, roads, doorplates, business names, other. By the third day the database held 2,137 entries.
The Joint Decode Pool formally started on day 30.
Its formal name was the Joint Decode Pool; inside it everyone just said "the pool." Thirty-seven stations, eleven countries, four countries in the lead. Ours was S-11. Station numbers went by postmark order of application; by the time ours was assigned, six of the ten stations ahead of us were universities.
Entry required three things: the antenna gain curve, a measured system noise temperature, and the timing reference's model with its latest comparison report. Four stations stuck on the third—ordinary crystal oscillators, comparison reports showing double-digit daily drift. The rulebook allowed grace: navigation-system time to start, rubidium clocks within three months, past that, automatic removal from the pool.
The pool's rules sat in a nine-page rulebook, which Ye Zhen numbered: JDP-001. Four of them I can recite.
One, a single receive window: every day from 19:11:44 UTC for thirty minutes, baseband uploaded by every station in one format, 32-bit float, I and Q. Two, segments cut and rotated by the last digit of the frame number; the station whose number is congruent to that digit takes it first, and nobody picks. Three, acceptance requires two stations' independent decodes, byte-identical, before ingest; mismatches go back and get redone, no arbitration. Four, baseband up within six hours; overtime, out of the pool.
Rule four drew one question in the meeting: what if the network drops at midnight. Shen Yi said: you drop the network, you're out of the pool. The pool doesn't wait.
The dispute was over article five. One country proposed "territorial priority": frames falling inside a nation's own territory to be handled first by that nation's station, on the grounds of efficiency in language and place-name recognition. The people in the room understood half of that sentence. The other half was written in the third paragraph of their supplementary material.
Zhou spoke with no pen in his hand.
"Carve the pool along borders," he said, "and you get thirty-seven pools."
That country's people took the material back and didn't raise it again. Shen Yi wrote one line in his notebook, closed the notebook, and showed it to no one.
The rulebook's last page was the signature block. Zhou signed first. He signed twice—the second name pressed over the first, the strokes offset a little, the final vertical dragging out long. He looked at it once and didn't correct it.
As for constant speed: in the end it was confirmed by division, the driest kind of proof.
The pool filed a daily sheet: station number, days in the pool, entries received. On the afternoon of day 31, Ye Zhen merged all thirty-seven sheets and divided the third column by the second. Thirty-six stations produced the same number: 1.000. One reported 0.998; the next day a letter came from them, correcting themselves—they'd counted a leap second.
One entry a day, no more, no less, from the first report to the last. No exceptions.
Three fast-forward attempts were made inside the pool, none of them ours. Someone applied to prefetch the next day by frame number. Someone offset two stations' receive windows, hoping to catch one extra copy at the seam. And one country simply sat on the bearing with their own deep-space station for twenty-six hours straight, to see whether it might replay at some other hour.
All three came up empty. Tomorrow's cell in the catalog table stays empty until tomorrow.
Adebayo worked on something else. He pulled Layer 2's daily scrambling seed and fit it against the date, two overnights at it. On the morning of day 34 he wrote a formula on the whiteboard: the master key plus the date derives that day's seed. Back-derived across the fourteen days from April 12 through 25, fourteen for fourteen.
"Then I can cut tomorrow's key," he said.
Zhou asked: "You've cut it."
"I've cut it."
"What did it decode."
"All zeros," Adebayo said. "I fed tomorrow's seed to the decoder and got a screen of zeros. The key you can cut. The door has to wait until it grows."
He put the chalk back in the trough. Nothing left in the trough but a layer of chalk dust; the chalk wouldn't stand. It fell.
That same week there was an accident, and it wasn't on our hands.
The administration office had scheduled a dual-power switchover drill; the notice hung on the ground-floor board, under two older notices. Tong was back-filling the ledger that day and didn't see it. At the drill's sixth minute, Machine Six's leg of the manual switchover closed forty-seven minutes and twelve seconds late.
That was day 31, receiving April 22, 2079. The gap fell at the head of the morning block: a data segment of forty-seven minutes twelve seconds, permanently missing. We sent retransmission requests by frame number; the pool sent its own; thirty-seven stations took turns asking for a full day.
Nothing came back. Its staircase still climbed at 03:11:44.
Ye Zhen marked the catalog line "partially missing" and wrote in the remarks: gap 47'12", not recoverable. Then she copied the entry out once more on its own, into the "other" column of her new database, column number 02138.
On the afternoon of day 33, the pool caught up for the first time.
At two fifty-two in the afternoon, the to-decode queue stood at zero. For a moment nobody in the pool spoke; on the screens all thirty-seven stations' status lights were green, green in step. Tong wrote two characters in the duty log's remarks column: cleared. Then he drew a circle around them.
"That circle wasn't mine to draw," he said.
"Then why did you draw it," Lao Song said.
"Itchy hand."
Once the pool caught up, Layer 2's decode rate ran to 100 percent, and Layer 3's cell in the catalog unlocked with it.
What came out of the unlock was twelve bytes of uppercase ASCII: `2008/OG/OPEN`. Behind it hung an audio fingerprint, 0.9 seconds, 44.1 kilohertz, 16-bit, mono—the same spec as the T-114 batch.
Master Lu did the listening. He hung the headphones around his neck, heard it through once, heard it through again, and said this was a stadium, not a studio.
"Listen to the tail," he said. "One point eight seconds. A studio can't make a tail that long. And underneath it there are footsteps—not one person walking; many people walking together, over concrete."
He said one more thing: after the countdown caller finished, at least four seconds passed in which nobody in the stadium spoke. Only breathing.
On the whiteboard Adebayo drew a line: 1987 at the left end, 2008 at the right, the arrow running out past it, a question mark at its tip.
"What year is next," he said. "2011? 2016? Keep walking and it lands inside our own lifetimes."
Nobody picked it up.
"Layer Sixteen's key," he said, "will be a meme my cousin sent."
This time he wanted the laugh. Nobody laughed, and neither did he. He put the eraser back; the streak of chalk dust was still on it.
In those days I went back to the old house once.
Xiheyan Third Lane, the six-story red-brick walk-up, no elevator. The key goes in with a lift, then carries half a notch right. The folding bicycle still blocked the second-floor door, unmoved in four years, dust on the saddle, a knotted plastic bag in the basket with nothing inside. The kitchen drawer as always: rubber bands, staples, three kinds of screws, the screws sorted by size into the compartments of a pill box.
The old lady on the third floor answered the door; she calls me Xiao Lin's girl. Her TV was on, volume low, playing the ninety seconds, same strings, the drums still landing on the beat where the corner bug appears. She said the television plays it all day long and she can recite it now—and she recited it, stopping at "April 12." What comes after that again, she said.
The tapes she'd already bagged: three blank, one recorded. The blank ones her son left; ballpoint on the shells—two marked "English," one marked "Summer '94." The recorded one's label was blank, and she couldn't make up her mind about it.
"If it's noisy, wipe it," she said.
I said I wouldn't wipe it.
She asked me then whether the ninety seconds was real. I said the signal was real. Then isn't it real, she said. I said those were two different things. She didn't listen; she stuffed the plastic bag into my hands and went to the kitchen to pour me a glass of water, in an enamel mug printed with a work unit's name, a chip out of the rim.
When I left she saw me to the head of the stairs and said her son's tapes had sat there twenty years and she'd never had the heart to throw them out; thrown out, there'd be nothing left.
The Red Lantern still stood on the old house's windowsill, the registration sticker on the back of its cabinet pressed down firm now—white ground, black text, D-0067—the corners still refusing to sit flat.
I sat on the sofa forty minutes, ten minutes of static first, per the old rule. The band log lay across my knees, open to that page—my father's pencil: "unknown station, female voice, reading numbers, stops at seven." Between its pages, the twice-folded sheet.
I drew it out, opened it, read through the multiplication sign and the forty, folded it back up, and returned it where it lived. The log wouldn't close flush; I held it shut with the paperweight.
Back at the institute it was evening. The gate boy knew me now; no work unit needed on the register. He asked whether I'd come again tomorrow. I said I would.
In those days the institute's mail piled up.
On the gatehouse windowsill stood a sheet-metal cabinet, door open, letters pressed inside one on another. Tong had sorted them roughly into three piles: people asking for materials, people demanding an accounting, people swearing. The third pile was the thickest.
I opened one. The hand was very neat, on ruled paper torn from a notebook. His father was seventy-six this year, something on the lung, the doctor said watch it half a year. Could we look up what year his father lived to. He didn't want anything else; he only wanted to know sooner whether to sell the shop. Clipped behind the sheet was a photocopy of a photograph, black-and-white, edges gone white, a year and a place name in ballpoint on the back.
I put the letter back beside the third pile. Who answers this one, Tong said. One standard reply to all of them, Shen Yi said, with no content in it.
The reply slip was preprinted, one sheet, the addressee line blank, signed with a post-office box number.
In those days Lao Song was at a task that wasn't his to do: he grabbed the frame with the station ID out of the ninety seconds, printed it, and measured the corner bug's character height with his plastic ruler. He held the sheet up for me to see and said this was the same type size they set today. Fifty years later, still the same type size.
"You think they just never changed it," he said.
I said I didn't know.
Xiao Gao was checking place names too. His 41-item list stayed on the whiteboard with new items added after it, strips of paper grafted on below, ragged lengths. Day 36's frame produced a place name not on the list, and he took to stopping people in the corridor, sheet held up, asking how the character read. He stopped me. I said I didn't know it. He said if you don't know it, what am I supposed to do. I said look it up. He said it wasn't in the dictionary. I said trace it, then, and give it a number.
He really did trace one, at the bottom of the last strip, and numbered it: forty-two.
Ye Zhen's printout came sliding over on the evening of day 34.
That day her place-name database had reached an April 25 frame of local news: an old street's renovation finished in some county, one street in frame, the camera panning left to right across the doorplates. She recognized one of the numbers: 17 Bushi Street.
In the picture the shop was still open, the sign changed out, a square code on the door, white ground, one corner bitten off by the snow. Inside, a reporter interviewed the shopkeeper, a man, who said he'd taken the shop over twenty-two years ago.
In the printout's margin Ye Zhen wrote one line of arithmetic: 2079 − 22 = 2057.
Under it, another: 2057 − 2039 = 18.
"My sister is forty-one this year," she said. "Eighteen years from now she'd be fifty-nine."
She pressed her finger down on "twenty-two years" and didn't go on.
I never met her sister. All I knew was the few lines Ye Zhen let drop now and then: a curtain shop on an old street in the next county, a dozen years and more; no smartphone—a keypad phone; membership cards on paper, stamped once per purchase, the stamp kept in a drawer; stock noted in a notebook, one a year; the shop's camera an old unit, footage stored in the machine itself, no network.
That night Ye Zhen called her sister. I was in the duty room; through two rows of equipment racks I heard her on the phone, voice low. She asked three things: how much of Ma's blood-pressure medication was left, whether her niece had finished finals, whether there was enough money for the shop's seasonal stock. The sister talked a long time, and Ye Zhen kept saying "mm."
When she hung up she laid the phone on the desk, screen down.
"I couldn't get the question out," she said.
I asked what question.
The year 2057, she said.
That night she didn't leave, and neither did I. She opened her database and created a new column inside it. She thought about the name for maybe a minute, then typed it in: unmatched.
Beneath it, one record only. A name, a birth year, an address.
When she finished typing she capped her pen, and only then spoke.
"I'm not sure this counts as a discovery," she said. "I looked a person up, and there was nothing to find."
On the printout, the square code at 17 Bushi Street's door was still so white, square-cornered, stuck to the glass, and the glass held the reflection of a row of trees across the street.