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 0x48c774b30aabbcfc9d4dc1acf635efa50306c798d507f17024112c4e14fcdee2. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fc6ae112-e266-49d8-a3a0-6fc44b748ee8.json and https://artists.proofprofile.net/proofs/artist/fc6ae112-e266-49d8-a3a0-6fc44b748ee8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0x1164089860bce057ee06e976a684113f8ebce526ef2c8ddefe6767e177571bed. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QZK6G2161482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x923b83af334f135ff5792149685698707b67dcbb5cf9fb5f525fd0a3dc7b3e52. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZK6G2161483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc22ec198160ecba0a643b838df520093242626eb02a2199dd098e4d9f0cfa5d1. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QZK6G2161484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbc33eaf21700f285a74eeec4d7712a25f9194dc87a9a4879e227a2b07d29fd0. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QZK6G2161485.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6802c683abde56d6bda28d6b7ea92f02e2b8c47a42657fbc273d2bbbe77d48b. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QZK6G2161486.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbd3909e67282d9742bafe0c0565c9727015351bc1bc17c04dd6b3d36d5caf8a. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QZK6G2161487.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x790312ff9c564224cccda2740c6c635264c064de4871c152ba913ccdd2cad3dd. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QZK6G2161488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4371126e66a09c07bebd713f80288f5cc048645c29e1f59478250d3a16046ea3. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZK6G2161489.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa204f7027f17078f4f8e1eadb0f959cd1ad3adda5eb61fee1978c78f52886488. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QZK6G2161490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88560c4036dddb65595021ab9e08d4666f5a0a9a75574a151995f2f44284bb58. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QZK6G2161491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaeb78733a79c9b4e43f9a2e6b15a8651fcd43ad8b2d00d33688c7086938e86e0. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QZHN52227643.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44aefae24ff9c5038666a6bfce5a93060e576576b2ddbb8fc31543e5eed17b12. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USUYG1300856.
HRVST: Szn of Completion (Deluxe Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c7dcdc86295effa6636aadfff65d6b7d38ce7851454593c4ad8f79a61b15b7b. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-21T17:18:31Z), 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/TCADO1812980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94557033d4b0b69f8bcf0972bd1781c5e16a6491f682a00190d9c425e11ac844. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/TCADO1812981.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8625f0dc73325902b90ed078937f7e11ee015b61e2a89b5f4e8c5432b325024e. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/TCADY1839854.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27e08213aeea5c1a62686f5d90c90db77d901f64a5b3ac74aec6b7facf7da6fb. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/TCADY1839858.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x254d2707ac593544ba357477234d0412928df4bfcf68cd3792591ec078a914c3. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/TCADY1839911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21cbada46730b2019e729b92652edfe7d3b1a0730b12053fc4f30371a04ea9e3. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/TCADY1840228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2221b6d977ff9cae0f06185e5820dcd0e52286de4e8860aaf3bb0e41ed63bf80. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/TCADY1839929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe317b8aa44940a9004e57babb16a9ee497091b613cffdf23ffc65ab8995938b9. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/TCAEI1940257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8026d32f2f7809ee4fc72b177bf31c34227ee3a3b7b3d3a3305ae00a46c8ad3a. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/TCAEI1940276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23d6832e6b3ae366389f6b3a0f5fa0d5d890a549c268aaff90caa18f948fee13. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/TCAEQ2011321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33e3594373d0c2d4907b9ba41323e20008948e9d8384b5a311a69b651e3f9e94. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/TCAEW2075058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b4a2d193090f88cf40d78c2c8e91471aad809c0c78aa593fd8e925ee104f985. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/TCAFA2068550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb06ddd97353c992b568efb986687a0128d867ab047063cd8fabee15215c7d4c0. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/TCAEX2064465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe752abb170b2a0beee44222ad5654c3d50dd871a0ff3b7ff3b599035ffdf1e85. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/TCAEX2064480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc495a6aa931d4cb6a8d8c29a03e54f54ca956eb505fc38905cca4d6c8405d71b. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/TCAEX2064486.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5238939097aa8d094135f078c4271567f2979ab83213cdc6e5c08fd14ec00b05. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/TCAEX2064502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbce9f66fdc56074c96dc100ebfa3426cd854643df5808b52d2e9ec6ce739327f. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/TCAEX2064506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc544236186e2e988c56167a0f705da990c8b3dc138dc3581d5519efded8f8d20. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/TCAEX2064570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93f5be8a4b610d324869620ef83f7dbb37c6b19765dbe999c72e82101f3ba555. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/TCAEX2064499.
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x732966f5c6307c02a1856117205b73b283797095f78a983648d3066249e1c9f5. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QZRP52260688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x032eebf91efa2f7953166f7fcfbe238dd475020c3e844bf31e13be5ebc7c5cf1. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QZNWT2190236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d21eb3cfe886c72d6705aebfc93bc33010ddc696ba0d4fb4d0ba137b2b654d0. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/TCAFO2189800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66bcd2a9a6392d971f19fe51953857fecead35b13450c1564a6dcf6821bba6fc. Chain 2 (Bitcoin): anchored in block 957041 (2026-07-07T13:25:45Z), 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/TCAFO2189802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc21f2136f69bc301f3282178e30b01d506a063a4b3eadd8dbb183c95ed2d67e4. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/TCAFO2189806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a4fa715378abcfd1cc9802867062ae3120cb141c1146050f109221b3c2b9272. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/TCAFO2189808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45856dc54c321df3ad6d45c67848bb32d8cb60bcc2a6dfe593b820f2ffca62cb. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/TCAFO2189810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62d3528a7343b6dc7aa1cdbf628fb34a06b28cf5c3ec5e3ddad6eebf119c0485. Chain 2 (Bitcoin): anchored in block 960330 (2026-07-31T00:58:21Z), 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/TCAFO2189799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaed85609811d1416ea2b35393087234f02a0920d667fdb7a79f47e99197f0e1. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QZK6P2078637.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc029538e2aa1e82eac6267a9f09fa7def3dceeeb43370efcf0efbabd2a77315. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QMTND2000134.