2026-10-02: anchored on Base mainnet.
115,695,968 rows of DEBYKO's history of 2026-10-02 UTC, in 9 tables, under one root stored in the contract under the key 20261002.
The anchor proves the data did not change after the anchor time; it proves nothing about its correctness at collection. The root below is what the chain holds for this day: check it there, not here.
The 9 tables under the root.
Each table's rows of the day form one Merkle tree (RFC 6962); each tree's root, with its table, day, row count and schema version, is one leaf of the day's tree, in table-name order. Chunks are the 4,096-row pieces a proof is read from.
| Table | Layer | Rows | Chunks | Partition root |
|---|---|---|---|---|
| candle | candles | 2,223,079 | 543 | e4e703300bb1fef715108a8b90c5a144e81b32660a11f379b586a0f8b7ac13da |
| liquidation | liquidation | 40,892 | 10 | 89e4ab4945fdb8d982096d92836425e878dd11f48435d27e793b1ae8f11c2307 |
| observation_depth_derived | book | 1,256,295 | 307 | edefb51551282cb6aea46d527347af119512353efa2211c2c8cc8a191c67cea6 |
| observation_funding | funding | 1,217,379 | 298 | 8a837f6dbb07773ac61bee2b249f17e761478d66c5e75eb55987be7a1e2da392 |
| observation_mark | mark | 7,432,665 | 1,815 | 9df7c661f3ae242f23bd7a170d85a1bd7f566232e12c302bf52916c2e1f347f0 |
| observation_open_interest | oi | 1,466,177 | 358 | f8910c431404579772b6a60337cefa9500f888fcb48b6d878ebc3f7953f27389 |
| observation_stats | stats | 1,839,570 | 450 | 413cde375de37ae0a0a115bc9f7b19e9ab26643d530c3d8214174edcd22af10b |
| observation_ticker | ticker | 11,071,593 | 2,704 | 2996bcc29ecf9357e99a3e6f426de546945476b329c3b2078440e610026b12c0 |
| trade | trade | 89,148,318 | 21,765 | a94d3bbd455121ab9d2a51320a1a135bcbee51ba4884d5bb3c090655fb99ce67 |
Check this day without trusting DEBYKO.
The same steps as docs.debyko.com/attest/verify, with this day's values filled in. The first asks the chain alone; the others prove one row of the day under the root it returns. Any public Base RPC does in place of https://mainnet.base.org. Or let your browser do all four for that row: verify it here.
The root on the chain
roots(uint32) of the contract, with the key 20261002. With Foundry, or with curl alone; the answer is the root, 0x12e3bcc7fa…eacd1f.
cast call 0x0AF8259DBfC613825718d4d49A05F9F6fdA15086 "roots(uint32)(bytes32)" 20261002 --rpc-url https://mainnet.base.org
curl -s https://mainnet.base.org -H 'content-type: application/json' \
-d '{"jsonrpc":"2.0","id":1,"method":"eth_call","params":[{"to":"0x0AF8259DBfC613825718d4d49A05F9F6fdA15086","data":"0x081dc681000000000000000000000000000000000000000000000000000000000135288a"},"latest"]}'What DEBYKO says about it
The day's root and its partitions from the API, without a key: it must be the root the chain returned.
curl -s https://api.debyko.com/v2/anchors/2026-10-02The proof of one row
Any stored row of the day, by its listing, layer and own time. Proofs need no account and no key (30 a minute and 2,000 a day from one address). This one is BTCUSDT's 12:00 trade candle on BINANCE-USDM.
curl -s "https://api.debyko.com/v2/anchors/proof?venue=BINANCE-USDM&symbol=BTCUSDT&layer=candles&at=2026-10-02T12:00:00Z&tie=trade" > proof.jsonThe row under the chain's root
verify.py from github.com/debyko/verify (one file, the standard library only, MIT) hashes the row, walks both paths and reads the root from the contract: ✓ valid, or ✗ and the step that failed.
curl -sO https://raw.githubusercontent.com/debyko/verify/main/verify.py
python3 verify.py proof.json --rpc https://mainnet.base.org --contract 0x0AF8259DBfC613825718d4d49A05F9F6fdA15086All anchored days, with their roots.
The next day is 2026-10-03. The day before is 2026-10-01. The list carries every day's status, transaction and rows per table.
The contract and its transactions.
DebykoAnchor's verified source, every Anchored event and the transaction of this day, on BaseScan.