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 0x0ab154d14d08ea076a073124ed10ecdd61f1f457cd97e036b0df9f3aaa0fc5d4. Chain 2 (Bitcoin): anchored in block 953714 (2026-06-15T00:43:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/86849de9-3605-4605-a797-f0bb986cedc9.json and https://artists.proofprofile.net/proofs/artist/86849de9-3605-4605-a797-f0bb986cedc9.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 0x67d6a18f21d7533be064f050a15ef4f585a04e5c1bb467da667dc8b3333ec889. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T05:22:11Z), 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/JPV501900474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bea3474b0b91b5e1f74b25aaea50eff2c8317035e24bc76ce40121f6745da89. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/JPR502037246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f0728cf5284459db3c1b1669db94c33842a72e39280026496f837d969a855e9. 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/JPR502201170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa385dc79877c78585547e106c2203d7613b005803f1df57263f8458d9c2b0cee. 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/JPR502201178.
Dear Lady (Remix) feat. oceanfromtheblue
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf010c96b3a370b4b80d00f0f17fdf5a6aa45cc3d151784f3ebf35af1fcbf3ed0. Chain 2 (Bitcoin): anchored in block 958987 (2026-07-21T11:26:09Z), 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/JPR502306034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3e29bc5e513747d4aa78444ec4f68b0f95e48f9f36cb4a2314a81fa7612c5ba. 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/JPR502307244.