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 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 0x210e5f4b46f5eab30783492f352e1847ed241d49702aec3372bf23f327a62de3. Chain 2 (Bitcoin): anchored in block 953803 (2026-06-15T15:41:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e3e6caea-ed6d-45ea-892c-4af660e6f581.json and https://artists.proofprofile.net/proofs/artist/e3e6caea-ed6d-45ea-892c-4af660e6f581.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 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 0x6d56f6c55edc93df51fe1796e03ec1aa9b0b0e9791060aaabcaaabf88e894103. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/SEYOK2027150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3be2abc1d770daa3ae4e28442cee025cf4ddabf15443ba5cbda59b8191ad1e1d. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T19:26:13Z), 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/SEYOK2027155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7214407741dc0e343c6373f10e6148e54036258888a35ec66d1f7e18f62dbb0. Chain 2 (Bitcoin): anchored in block 958474 (2026-07-18T00:59:09Z), 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/SEYOK2027158.
Mothers Don't Raise Your Kids to Be Brakka Boys
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2744e1299c11bbd8cbf5086069f91197baf5f3be89e26ae59572f71d87daff8a. Chain 2 (Bitcoin): anchored in block 958686 (2026-07-19T06:43:29Z), 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/SEYOK2047556.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4768b0072db8d01f907cb69ca4a07506570c76e1c39936b9a899d86a9016be60. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/QM6N22461419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3d0ef8b07b1f17044536ea264361f0180341f2b002a10449bdd0be12cb80813. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/QMDA72463707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9835d795c27d381a44f05d9940e24235fc6613c092798d304f0bf3ac8ec6862b. 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/QM4TW2516988.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c58c7c2f57324701e98b05122eae7c980436ccfece86ed5b87a7a0180a05bda. 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/QM4TX2563394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9835d795c27d381a44f05d9940e24235fc6613c092798d304f0bf3ac8ec6862b. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/QM4TW2516988.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b7eb369e488dd8ffd7ae1ff82f95251ec5d6852d02939df554f2ed30dbfc937. Chain 2 (Bitcoin): anchored in block 958785 (2026-07-19T21:40:06Z), 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/QM6N22505487.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fe5bf747a9f8e1a6e40d8d19ec28c08d32978dc8bb0468195cbcabe2e8a8167. 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/QM6N22505489.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35a522bfbc1ed2d120a6d123f8b11262ea5cee4abfbef50ce6604abbaca39817. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/QM6N22505493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95aa9e7b362a70ec6cb2561c09bbc517edd3200e2c63cd7d6d8c743eb77dc38a. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/QM6N22505495.