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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c0b2f516ba03521ec2b44aa849f2580e35770bb89e7b7f11db943165f4d94c6. 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/faa44fba-7a07-4f97-87bf-f4aca2162167.json and https://artists.proofprofile.net/proofs/artist/faa44fba-7a07-4f97-87bf-f4aca2162167.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76a5613fc01c0457cb3357b195d51c6b8c4d8e608e2857daca34d9edd02301cf. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/USUM71804033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2963110d64150f761cb580716faec0ee78d9c28d1057cee97402a203b3e069ee. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/USUM71901058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x680d83358bc0577736729fd7c69c932f14a5ba92606ff2c8f0651a6f1a66af02. 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/USUM72014981.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd3b4190d0e5746c6e084c3e1f26c272c6ccef2b236e585ebafb91fbd6bef380. Chain 2 (Bitcoin): anchored in block 958617 (2026-07-18T22:07:13Z), 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/USUM72019124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf56344b5dc01ac32e03de9a9a14d06abdd0d3ece6577025886d220b4c688ba4. 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/USUM72019125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4370a12d289988eabc97c9e6dd024505c6e5b67d9fff0b990b4c270ebbefe3a. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T19:06:41Z), 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/USUM72019123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x680d83358bc0577736729fd7c69c932f14a5ba92606ff2c8f0651a6f1a66af02. 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/USUM72014981.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x692a7b3d536ae141561ae8894161c01a7991028ab4afea131e72a7a43e886eec. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USUM71615368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa01cda370255b7b28ca3e1afe61120b4923c66e4308c9bc88da642b7c51b1ac0. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/US23A1554360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa54da3dbc6fd36cdfb1f69937c7a55766b906c9e2880ff78d2c940f667399929. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USSM12100889.
Do Yo Dance (feat. Kamaiyah, RJ, Mitch, Ty Dolla $ign)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x887faecfe18b1fce50fa62de995bc0c7cdd3b8be4619b4df17207eae03273fe2. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USUM71905789.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68a306a8efed07f5414b49b663573644ed55581b369d4cfea617c7fdb66dc590. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QZDA72178173.