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 0x6f2dab1198163d0454c9f4c45670e1d4285642866e89b2f6694f60290b4ec60e. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/57132027-fca6-4bb6-8576-e3b532a257d8.json and https://artists.proofprofile.net/proofs/artist/57132027-fca6-4bb6-8576-e3b532a257d8.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 0x08e20c450cb7e32bddc816a8bd94f0dfc8acc01368b79794af614b23e3606f0b. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/NORYA1901020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe183b760d54ba3ddec1c1276e7eb171846ed65574e6f60615d8864228e561269. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/NORYA1903011.
hanging around you/crackers (Niilas Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3932bfe4aed882b8e0a9a3bf411dd0c352f1b6d31183d9ed8a0f44d1db492b7. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/NORYA1906040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b9dc154076d3817693e6b6376ce9d533693488536fffeb5ae50a3c6c65d1759. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/NORYA1906030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b9dc154076d3817693e6b6376ce9d533693488536fffeb5ae50a3c6c65d1759. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T12:43:49Z), 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/NORYA1906030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf79f23787c3eb82ed61aad18f2b21daa239e2004bc8c35b304c2702bb5ab5207. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/NOTF62101010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a7e01bee7587b8b8d3685b94eb9a45f7b4f08762d6e8b14ccdeb73b1725cad7. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:27:27Z), 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/NOTF62118020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27a427091ff44e1e67b95d938564fb682eeebdd62a5e6daafe37cf19612e21a5. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/NOTF62111010.
Spring Rush (a hot platonic subatomic crush)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b635066297ade267915fe9807756cfeb03087f1140511642d0bd75e93d4ad74. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/NOAGW2100020.