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 0x61e87000e66cca270ac0d3f65b64cec4cba15b18e524986889e4ca0669014b69. 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/8ece7d2c-3e29-4327-b695-81db00df076f.json and https://artists.proofprofile.net/proofs/artist/8ece7d2c-3e29-4327-b695-81db00df076f.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 0x4d908e4161b064eaa58de992c648201ceb4280d834b15564ec587f395f3f87d3. Chain 2 (Bitcoin): anchored in block 960198 (2026-07-30T02:21:55Z), 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/QZS7J2479242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee78a65fad50f2cad43588a94c41de7c1b92ee01314aa3744941638955628c25. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/QZJL41900094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54dc7d5ca47dd43d7f4dc49cc0aa126a25c3f82effac4eef1b0557b033244466. Chain 2 (Bitcoin): anchored in block 960381 (2026-07-31T09:50:11Z), 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/QZJL41900008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9686a1b76760837e22fd0bfa26b979bbe3a65c3b693e66dd9fdabf6a7bf7b6c5. 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/QZJL41900095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6290a47be7a8607191a4bc48264ff9d11bd8a7d73105d8c523c2bea977ce4ae3. Chain 2 (Bitcoin): anchored in block 960187 (2026-07-30T01:34:28Z), 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/NLRD51952318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1701d5d9579eecdbfe615efc6c54e7c9f0aff61eeadea1f7da359bc4a3e11301. Chain 2 (Bitcoin): anchored in block 960218 (2026-07-30T06:57:05Z), 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/QZJL41900096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7bc9dbc0a5050412b05f3e54a4d2592074d6c0bc20616fdc51624fa8334dfcb. 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/GBKPL1948079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77cf1457b83055eb4cdb480f75d9ac9e52341588f3eb03e2906ab78951fa5e03. Chain 2 (Bitcoin): anchored in block 960376 (2026-07-31T09:09:19Z), 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/QZJL41900097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18fde85b8d5910f99c6789919c1cebb2a51cc1565521a02ec45d32b04f176cff. 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/QZJL41900098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17efa4c4e0598a7798c8df2216ac61794d6293a7eeb7cafd734aec86483c300f. Chain 2 (Bitcoin): anchored in block 960175 (2026-07-30T00:16:15Z), 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/CA5KR2461475.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f1e7b86eb741e0231948ffea4f7b1f3cbc346d59532f121b3156197ce1ceb6a. 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/CA5KR2190816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc3355ac4dc6e915acf831372e9cbfbc041eac16454c6aeee983e951f694084d. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/CA5KR2190814.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc3355ac4dc6e915acf831372e9cbfbc041eac16454c6aeee983e951f694084d. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/CA5KR2190814.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92b233a9e7501ec3ddb16e8d01de5afc120e5941164f8909c6d39eb4c734c908. 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/CA5KR2190818.
love me yesterday – outro (with Burgettii)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb7dc57b7f4f7a4a76d31aa3015f71683c199f7c727ea8ac9f346277757e0800. 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/ITB002000599.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x554295ddd1863693bf3ee55c23c274b3041dddfdf987102d79a186b85c737333. 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/QZES71937899.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f23ff34fd2582412bcdf9a4f563c335d812d53d44261adb063f5898b7d82a7a. 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/QZDA71918228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c56b55e94ac8da0e7218f42d5ec471b150dd9f761117eb18332e2bf8d718e4c. 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/QZJL41900033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddb431aeaea3c18ac0c60811e747118e2b98b6fbaaad253aa769f89e067dfd42. 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/QZJL41900034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x830d90956788ff4b24fc2066cbb0cd28216b7370f5053209d57ddbf1a75e7434. 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/QZJL41900035.