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 0x8dfeef9e42bb8f7867ac87d6e7992d7ff29276c583346b6c727cafe203c23487. 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/36326b03-db61-4f9c-84f4-95016a076797.json and https://artists.proofprofile.net/proofs/artist/36326b03-db61-4f9c-84f4-95016a076797.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 0x66c6163c26a21708fd6661eb17f9b6f379b2906b15e227964b2ad84ffe05b500. Chain 2 (Bitcoin): anchored in block 956861 (2026-07-06T01:57:57Z), 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/QZTB82322834.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56412955ad79f47ca4bc0ac2756499eded775e432a1983fbaec8676d3d8ae13d. 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/QZRP42386617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4adeaee36c1e72baac4f22376ce508684a79a9d9582f9d356e826fe82134e0aa. 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/QZK6Q2277490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b12eeca3a2e507256d79282c2f6a2f79bb674ea0c983084cba6138e4bb9a16c. 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/QZHNB2172557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43015f87f11f865514c60c96e6b75cde072940f86e0e9d2d6f3f1999389eebd4. 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/QZES72116089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0be0a9df66df821b2b980734bb56227dea87384199a4ddeeccd62a89cc91fe7. 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/QZFYX2174203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09fbd6fa153c37b928b60a4860e53b0409695f496df9add0ee83cff26f014bd7. 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/QZHNB2074133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2741126cdd742f74b3296a0d33b7bfcfbe80908618e337f30ff75e80af625f5c. 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/QZFZ32097231.
White Picket Fence (feat. Jasmine Lynese)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cc76224059d9cf0801d11eff3e59cc62df72f46b38a9947831c191727b4f0ff. 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/QZMEN2542209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb14def5085f79cfbeccf58ecdb1baf6aa7bcb487867c653cfc4b8e2901e796af. 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/QZMEN2542210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x756f4acb4aa2d7243eab50f575ffba424ef13c7d02633fbb454dd779c26ca510. 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/QZTBA2496890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe42b06fe7bb3c38ab4b8bea6fdc76bb03e2e3d1a266848e91823a82cca1538fd. 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/QZTBA2496891.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c72b403edee3652a35b3e85df41d55843bba504ef4c73d4dfc80e0fb505c896. 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/QZTBA2496892.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59e021bc5a4577d9fd1ae8d929ffd0ce053b838e798e46ebbb529d10cefd676d. 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/QZTBA2496893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc10db22d16812c4f40860f7db77bca6562f6970b36ee534e8227ecf577ba87f9. 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/QZTBA2496894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ea6bd557b3eb874275b16f1abfc965f60bfe004dbd1b897d98bc53b8a7ec5fd. 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/QZNWY2441788.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29876f5da69238c63f2727b2316ad279b22aef486c161e8aa7791071034b0205. 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/QZNWT2437731.