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 0xe79240def66bb0ec09ba18b7a45aa4e992844d49efa32336441e870f92d776ba. Chain 2 (Bitcoin): anchored in block 953654 (2026-06-14T16:26:51Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/48dbf32d-c8e0-40e8-bcdd-e3e55c20a40d.json and https://artists.proofprofile.net/proofs/artist/48dbf32d-c8e0-40e8-bcdd-e3e55c20a40d.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 0x3080c9027f4898306b402ae3e540be66e06b014542db695ab514c4442174c72d. Chain 2 (Bitcoin): anchored in block 958971 (2026-07-21T05:04:56Z), 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/QMF922050082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x186cfaaa47325771eb12903d78122bdb8b39f9f8bf6a221b3cd9d859539086bf. 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/QMF922050078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0911a786850b835bb5f3d60fb0ad3e449d4529bcae388a04a567037bb3a01801. 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/QMF922050081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3080c9027f4898306b402ae3e540be66e06b014542db695ab514c4442174c72d. 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/QMF922050082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01cd49fae9f484780b27fbd67ab320acce74a054d19c23b4381ba778a1a2b1c8. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T03:40:11Z), 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/QMF922050083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4850c91a969b800d2e964d2183fba6f027cf5b97c5cab3bf90f1959ecaf287c. 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/QMF922050085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x025a2f17e473c2345926881d26d3cbcb508b031a94e911cfc0d25e0d37051b93. 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/QMF922250041.
Worthy Of It All / What A Beautiful Name
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d558f943f60a1a8fb74fdeb358d1ba133f21fb4bcecb60920c4bfa5d9e20d9f. 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/QMF922250047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x025a2f17e473c2345926881d26d3cbcb508b031a94e911cfc0d25e0d37051b93. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/QMF922250041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x254a6579405266f1d2b099b7fb57df788cda47681fd9fceb47dad0b70ee4ea68. Chain 2 (Bitcoin): anchored in block 958708 (2026-07-19T09:08:25Z), 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/QMF922250038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x238f79a129e1d9235b501197444d3b34834d47f66d75acf4c796681da3b8502d. 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/QMF922450024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadc9e303302b4d7664997cc48d75abae1edefeb9a5783b4c8f13db1b8caf8871. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/QMF922550020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x010cbde532d638d0735d0064139cc9ecbb842bcc00d7fc7f0940754fc2395089. 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/QMF922550022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f8c3c447555e3a6a4f1f4ca1d13e4311916282f5402099d54935ef3d2a0bb52. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T03:19:06Z), 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/QMF922550024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f6a8ddc4fac9b1c9d19f34dba2079916e0fab29510cb7c4453e5813e5d51942. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/QMF922550026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa488110008d7f261c54a95eee7b06f623f6e651477ccc6073400662120312d28. 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/QMF922550027.