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 0x8a95fdaf84b5efbd1f20d6a92599ce3dfded8ebe96353e9a6a35edd441f96040. 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/96c957e6-d7b9-4c22-a057-c053cf2b59c7.json and https://artists.proofprofile.net/proofs/artist/96c957e6-d7b9-4c22-a057-c053cf2b59c7.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 0xe4df0332557bf21c967f2b85f51bb654238eb14e23786a92cdc7085393160a62. Chain 2 (Bitcoin): anchored in block 958104 (2026-07-15T05:34:05Z), 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/GBNAR2100003.
Mama Say Mama Say - Stev Dive Radio Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e6fea1520dd0b63d7ff5842b0d9a1abedcab611ce066c5ab4eec48ce5e49974. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/DEPI82105898.
People Hold On (Laurent Simeca Club Remix)
People Hold On (Laurent Simeca Nu Disco Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07dc99e9e9b044edff651bfc561dc05a44c0227d03553c59ce72da124a9f0549. Chain 2 (Bitcoin): anchored in block 958726 (2026-07-19T11:47:20Z), 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/GBLV62321394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00c36019f4669d1b67eaa4afa8e25d9c2de79d2459bbe69a84c41efe7ac79ab3. Chain 2 (Bitcoin): anchored in block 958625 (2026-07-18T23:11:57Z), 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/GBLV62419163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1de21dd3002887cc182c9f68e560a4130caa41fbf0a5aa9d7c0cf533a98d050. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/GBKQU2500905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b5bef224319003ba88b1754d3a48287412d205de0232e995d43c67e90bdbd89. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/GBKQU2507513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2167c36301ee665339ebf2dd1679756442ac730edba8107a9b656cc73db9da4. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/GBKQU2506005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd601b6665cfb7c950606a974ef1881e9ee8dd4ad6207934a4aaa7a29eb6bd5ad. Chain 2 (Bitcoin): anchored in block 958104 (2026-07-15T05:34:05Z), 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/GBKQU2513112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x832646ef0666e95c5206d26c3a5324e15fff63475cae3b133ca2defb16d62ac9. 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/GBKQU2526973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7346ae828d1eb38703d488422ad0f08a8c0cf91abf2fe0a52e529ffa2b37e521. Chain 2 (Bitcoin): anchored in block 957774 (2026-07-12T23:51:20Z), 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/GBKQU2536502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2541bec20c3f202235634c2feb291cfabefc1fcb492428896ac9647bde68f924. 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/GBKQU2551795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7187b4a47e86125cba4f28d084f2ec92ecca0d63eee9caac22b40995885c78c9. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/GBKQU2579597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6434173732dcde5d32d4574085cc745d9b633b33a758f88d9e0d24eae2b13cc. 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/GBKQU2582723.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ba439ce45e13dc30534172c7e069db10264366f296eb1d68c185f6c2ba46a90. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/GBKQU2583798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2d5f1ca798bba2e9654483ded64929b8b0eb8a890917caea7bde8ef0acc0579. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T13:01:04Z), 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/GBKQU2587255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2005ae8dea753fa4f231e1f1fbaf92d580910c7f0ad1d88a7c77fb4eca448c8f. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/GBKQU2591168.