1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0xc76f0f1c7dd1967f32988e037a213974f5d7a529eb3ddd3a0169821e551c7376. 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/57d8ad57-83ba-423e-a580-3c16c0be634a.json and https://artists.proofprofile.net/proofs/artist/57d8ad57-83ba-423e-a580-3c16c0be634a.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 → block OTSBitcoinBlock must exist at that height 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 0xb94d10a6d6ba55a723fc8848e04d2c7b71d2d36ad0b123674b9a24730dba5f6e. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/FIUM71900015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb94d10a6d6ba55a723fc8848e04d2c7b71d2d36ad0b123674b9a24730dba5f6e. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/FIUM71900015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b51fd242d61ecc2ad0d48de270c70025358ca015117b79780792ef6eecbca28. 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/FIUM72000197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e2855578125e5e0fb30a847caab8cb189e2e9126881210ae9966af01dd962d6. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/FIUM72000202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97d9cb83794956cacbb6210e078d29526daf321fb383ce8619dcf08213e2c7cf. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/FIUM72000348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab8c7335854f511a7b8e1e89958c99acb6c56b4f99c4c11cc879b8b07f239684. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/FIUM72200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16edc3b2d106204be79b7ea160f4f4e39b2b62c0ced36ecf8f334f83a19339a3. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/FIUM72200006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5c31b3fcb91e1ca5cb02c841752cae99ecbe554ff1c22faffef6561e361843d. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/FIUM72200011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd791bbd5521297cd199c894ba43f112d3b4c0b08fd15b9df1a6288fb9b25449f. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/FIUM72300071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6580f0b8f43efa696d356a6fe0c139895388aef58652d991b70a491ee10fe6b. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/FIUM72300197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cbdad27b66f65ebfc0c3b65efd5b401a12f30154ed1b2ea371a6bee94241681. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/FIUM72300340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x308e996a25b4ee5a02dac91d089e1054615279fb2e38bec0d7a31e12c7717a35. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/FIUM72300384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e8893a41fda90d0802e2bde6247956208283cb1b9681cb55e0fbab9f20a4ab8. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/FIUM72400080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4f4c607f90416480e4ccb7f21e94feb5c6dd725a470c8ef795b5140f90eeacc. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/FIUM72400082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48dd69597e522b2556ebe76b495ca3eebe82e2d0b8da6bd88146c5506a3870ef. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/FIUM72400084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6580f0b8f43efa696d356a6fe0c139895388aef58652d991b70a491ee10fe6b. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/FIUM72300197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x308e996a25b4ee5a02dac91d089e1054615279fb2e38bec0d7a31e12c7717a35. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/FIUM72300384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x803924d300eb07c7195bc30553af929ab7b066064023799897726f987c568e88. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/FIUM72400086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x710e813a90a218a774f921f6565baabdcbc1b2addfb4fbbc49b5ea7fbc746aad. Chain 2 (Bitcoin): anchored in block 958508 (2026-07-18T06:27:01Z), 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/FIUM72400046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x742e3dbaf02164235360a38659bfc4b11a16afda8b460e947781a4942e53277e. 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/FIPEB1900052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2685f56cfc62c5e3828146a074e5b59f93a59fbf6878d9eab4ae84996da32718. 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/FIPEB1900054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15a6c04b04a281adbda32bbf5ae129fb1ffc6be01869ecac6d576495831baa4c. 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/QZ5FN2469116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff24203711512ecdd30a97f777b1c392fae1b0ec3b2fb188ce6246769078df20. 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/FIK3E2300086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7106fb990302cb1fe08f128fd2a7a41d69c8b65e66dff74b5b4be85f1d874c00. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QM6MZ2124368.