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 0x9e2fadcd5847dc3c9111504c28eb2b80202c28766075a24374d597645a192af6. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6467e525-327e-4cfe-8bc6-430527683989.json and https://artists.proofprofile.net/proofs/artist/6467e525-327e-4cfe-8bc6-430527683989.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 0x164d16147b341bc35ea1151a28f747459ba901e83b168c60b49460679a6ba68d. Chain 2 (Bitcoin): anchored in block 956862 (2026-07-06T02:10:22Z), 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/FRYAS1000193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0ebcb6a944fb29fc7a67ef93cf4e03ff6124ccfd0f385e20ec418b9e7245d3c. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/FRYAS1000194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82361fff5cbba42c0d5b0a422e1aa82a403414c95b42a5a15a879571257f7a0d. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/FRYAS1000198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b3a0263f5b47025ebd81e501419af3e86471ba79a87a3993c7525ec8265739d. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/FRYAS1000201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4587c814dc52b915fb308d5094fa97823e09dce3b040b9011f15a78829e53669. 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/CIUM72000228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f2e7f7fe093e639200925258b9ea92b52135115bcd604dc36be2db06bce44e5. 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/CIUM72000232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2c417df6594a52c7f097204dbe9cb5307f20a2d5bb992e5407388bf8fcbb9f8. 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/CIUM72000233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5d204da6220d43c494b95b5ab60b43752b18186f394ae37bb803d022a23cfe0. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T01:56:58Z), 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/CIUM72000237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62d4e47becbcdd07211a2c1212b57562dc9644409b8f5eead2fc963e7e62e1ef. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/CIUM72000204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f244935e8dfc4f1dd7866515253689168b3161b88c53506f6c4a0d9a3885750. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/CIUM72000207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53e7f2ff2a47549872d410c13caf9061aca14fe485a578114fdf5ba7d5558203. Chain 2 (Bitcoin): anchored in block 957874 (2026-07-13T15:43:57Z), 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/CIUM72000208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01921f6f71c65e18daa337adf176be1050859bdb3008cd312262191e141aecc4. 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/CIUM72000209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e9713db44552ff4c0c0a1a6cd4e0c41bc32b1fa49e2cf75379160246d3cd4ac. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/CIUM72000211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc162303e01033809106c453fc5df3161d5a421fac02d48c05ba2a7d777147348. 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/CIUM72000212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1f5d0f15502824d061a4e182a7dfff695ccfab1c1829b47522426aa945473b8. Chain 2 (Bitcoin): anchored in block 958501 (2026-07-18T05:33:04Z), 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/CIUM72000214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4b5ac85dcdb0ec62515b25cacbad35a61c87e2cc0931633f6ad816c3576e1ba. 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/FR9W11418442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e60d5c04d719247e61988b6add76b9a577b289bc130a54983eecec4776519c0. 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/FR9W11418446.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68afd87e2dccf858dfe151bbbae0cd6306d7e4e08f6ff1d9095b54e799a5c67b. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/FR9W11418447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0437d47e7dec33b451db91e945d90031d7ef6750a9063aa8cac0c38c1c11afa. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/FR9W11418450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e6507391ddb920c60e5a85e0a8fe58593753c9127fa3720644bac4549959713. Chain 2 (Bitcoin): anchored in block 958126 (2026-07-15T11:07:17Z), 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/CIUM72000219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28784681379e05aaa567609e32f97c9b6259febbd4745097836849ffd5d22f40. 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/CIUM72000221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x600977eaa533650713bb821d74a22a5fec253cf95f9208f5de9e4cdd2b406710. 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/CIUM72000227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34aef28b30934bec1e0faa01a1e5956a7135ee0a4b6e3a4ae9b333ce958e6685. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/FRPLB1704650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b28561b5df6f7a46ed3fc27ad42690ebf6d0b61b93ac9ad19502d37d92c4958. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/FRPBL1704710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec66538e411e5c4c02acc34a9b9f6466f971e95f190fa4138e52cad843f79607. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/CIUM71900070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39fd3f1dc9fa7eeffd310fca27c9bdd1dcd354748090103152b76f1fcd723e73. Chain 2 (Bitcoin): anchored in block 958495 (2026-07-18T04:39:02Z), 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/CIUM72000381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7c4306d6c43642123cbb720fc4b4468fe963d87497d012a3280aa4cc0032360. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/CIUM72100013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d6ffa2b13930fd8e4859687d08f17bf3e62e321b139d8c93888f738a13d6f41. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/CIUM72100017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1685c12aa62900bc5a7f12031b9f3182a97fd468a5359f8293ceb2ce25686d5e. 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/CIUM72100019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4b5ac85dcdb0ec62515b25cacbad35a61c87e2cc0931633f6ad816c3576e1ba. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/FR9W11418442.