1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee1a0d17c283ff420cc0be0e51e12fc9dbf2c0c6c98780448cbeacc82a556419. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1cf1cf68-e939-4287-b374-204c71114267.json and https://artists.proofprofile.net/proofs/artist/1cf1cf68-e939-4287-b374-204c71114267.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
決めるのは”今の僕”､生きるのは”明後日の僕ら”
決めるのは”今の僕”、生きるのは”明後日の僕ら”
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1c1e96aff09b761673b493169d3b93e4172e8e989ac4ef6c3cf3078ae2cf8e3. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPA961700001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4a259d0849dbb710d276c4c4591d8ab5a37f4e2807d19cd3305ac68245c3fa0. Chain 2 (Bitcoin): anchored in block 957756 (2026-07-12T21:36:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPA961700049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bb9a708f9e13e0185fc4fe0cfce54984e42cb12bf0ef7fc56ee507d81ee0f21. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPVI01901116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0cf7a81b8ded86373dee5d3566c4454163a58de5661628b58d27d2ce90df09f. Chain 2 (Bitcoin): anchored in block 957759 (2026-07-12T21:46:51Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPVI01902397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b597b0a0600483674010d517e6bb28e0fb83a1e76294ac4138d256bc7c08275. Chain 2 (Bitcoin): anchored in block 958142 (2026-07-15T10:09:30Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPVI01902398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c710f6b4da91342c409ed66b51eea6e496505873285ee186d5f7a07975db1a9. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPVI02001347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x992e75e6282a18f9e86cc2fadd583bf2fe5b617c9acd88dc36dc1425859a18bd. Chain 2 (Bitcoin): anchored in block 958798 (2026-07-20T03:01:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPVI02001349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee1176d85a5a4ca62e4c06359c940ce0f2c04f657b89bbb39ea0362c070e15fd. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPVI02001350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23506512c3d492638c2e7e1361e4208b6c47ecebc35774fb12c1fa7b4dced518. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T09:51:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPA962100087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b597b0a0600483674010d517e6bb28e0fb83a1e76294ac4138d256bc7c08275. Chain 2 (Bitcoin): anchored in block 958185 (2026-07-15T18:19:04Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPVI01902398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x992e75e6282a18f9e86cc2fadd583bf2fe5b617c9acd88dc36dc1425859a18bd. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-15T23:25:50Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPVI02001349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0cf7a81b8ded86373dee5d3566c4454163a58de5661628b58d27d2ce90df09f. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T20:05:39Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPVI01902397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b597b0a0600483674010d517e6bb28e0fb83a1e76294ac4138d256bc7c08275. Chain 2 (Bitcoin): anchored in block 958627 (2026-07-18T23:33:54Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPVI01902398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x992e75e6282a18f9e86cc2fadd583bf2fe5b617c9acd88dc36dc1425859a18bd. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPVI02001349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0cf7a81b8ded86373dee5d3566c4454163a58de5661628b58d27d2ce90df09f. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPVI01902397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb99b62e8a61d81254c9e4ce291ce49ec1326fba1cd126ee00f9d13bcf4167eb. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T10:28:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPA962400028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa421cf05bd5bd4e6d60e897d824cc01b447706b274bccba0c035ee58c5545d3c. Chain 2 (Bitcoin): anchored in block 958793 (2026-07-20T01:55:36Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPA962500039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5723a892a1ee8df0ba7956b36d541ed67c1f440f7f6f93682d761df49ea8f2ea. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPA962500033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42a4b975324b7d9a7642bce306ed698ba09a2a0dd03836cce534803729402860. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPA962500034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed849b0579fedf5396ec1ff95fb04bdca6f3b92bdeb38211784663e84c777a48. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:53:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPA962500042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11a2b865046ea6b13bec02d0662a42e4ecc992275111c1063e5f6901b1349b4e. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPA962500035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a4078fd10cfcdd5a796f2b413532c56b6178e27988b26a83cc483585014f5f9. Chain 2 (Bitcoin): anchored in block 958822 (2026-07-20T07:04:44Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPA962500036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb8af34e38070e16123fa4140e39e537c21bf0bf5c1662f976ec8e252529184c. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPA962500037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29a499f0633ff93e0d053697a1a40979e8b437456a0066c6e49db9e0009fab5b. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPA962500038.