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 0xfd3aa12b6c670be3e28a8ce689eb749b1003330394e6a229fc5a456f1000e1fb. 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/e6682760-93eb-41a1-b394-b8de6b5fb59b.json and https://artists.proofprofile.net/proofs/artist/e6682760-93eb-41a1-b394-b8de6b5fb59b.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 0x59f651ba63584834e0e87d8a55b7c26e90cc2f27d8c9f8b0e55366a559e8629c. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/JPV501600756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x446cd9f03329ea49300439d93205f69e7e598513094f87c78b8d1512b9e7576e. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/JPV501600758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x365865a5538d9fb65a2754aaf3717660ac23294c7dac70b54720b186ed47f080. Chain 2 (Bitcoin): anchored in block 958371 (2026-07-17T05:45:43Z), 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/JPV501600760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd071ef2ba5a8f02447a0c438cd4ae1dda5feb7e9223fb513bbcbd67333f882ad. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T15:48:23Z), 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/JPV501600761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfc95a55dda8a1019723750890e3f203a4f59d63f4c2e4dd2857d7e10365a6a4. 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/JPV501600764.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e3874d70c340feddbec23a0d96a9ebfa91a7d34ca219a156020be6219e55d67. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/JPV501600751.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a988a6173f9343cd0de52bc69776e8d4cc4f9933805e32c013fd1eeb49f5e50. Chain 2 (Bitcoin): anchored in block 960314 (2026-07-30T21:00:46Z), 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/JPV501600752.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13c76de7d9353303dda34723eb299aaf4d6f9c58b16872d382ad243a88ba5571. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/JPV501600753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fa221f5beda290185e95fd8b70c55a5b5bc425c20ad0515142f37013fb8f91a. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/JPV501600754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0db243bd072cb2dc9edb5c1ac437e38967d82526235c71f1bc3c6132f1c521fa. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/JPV501600755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59f651ba63584834e0e87d8a55b7c26e90cc2f27d8c9f8b0e55366a559e8629c. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/JPV501600756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x446cd9f03329ea49300439d93205f69e7e598513094f87c78b8d1512b9e7576e. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/JPV501600758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf42526958586d6421ba19cfd8cfd2d511bbe9e07b1fe1548b13173d119c5f9e1. 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/JPV501600759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59638dafd19fdab35b357839aa4c86619fa0fd4b04d6bb16299ee949849a15d2. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/JPV501600762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec6323abc5fb976b07d33910216155fafd68e30cd434c436ca485d5944b28184. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/JPV501600763.
Lay Low (feat. IO, DONY JOINT & YOUNG JUJU)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ee44fdef36ee301cf94d26b3d71616c8750365d19ae0c2b7d22ebf8dd270ed1. 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/JPH491516025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x858dd097d4eca7174b36d4b9ab34a20281c937044659653a3ec243be64cb8762. 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/JPV501700204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf680b8eef6f7218d3f5d9442e58489e0d3a96234969d4e2f8b91a451bbd9404. 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/JPV501700403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2aa1bd6b9b9cf85614f6320c21b1e971e79fca34f10cb7b01b27cbb998acb53e. 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/JPV501600389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x881d121c9cba03c34ed84b8d755508d74e77162f3de90fdd473cebaa38a03b43. 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/JPU901701686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38fc99361e1b2c412ff33ab6ce02f0b897ab85069f6194463ff8e878c57898c4. 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/JPH491616039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x265733202d6308161f308fa4d55ad643c72aa8d34ba4959b6d8b9763730aeacd. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), 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/JPH491616048.