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 0x03fcd7e618f3626e82d6071249ad739dd6df85bde5ef388b1acf77c127898451. 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/36faecf1-3b4d-4674-a126-d3c6b166ca24.json and https://artists.proofprofile.net/proofs/artist/36faecf1-3b4d-4674-a126-d3c6b166ca24.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 0x774fec81587831026e8724ef3348687f7dea557013dcd87ffef9bdcb61c2a39c. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:11:37Z), 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/QZK6P2315898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ff9c0723d3a8aea3f119184955848e2797b94606281668f70495e5f95ef4934. 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/QM24S2304409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc7286d44e79d53047549f1b6a630cea0752810caee47989957d577b6a7f730f. 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/QM24S2306831.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2185beb5dcf26cac530b11b2b6313582e11c1acb23fe7a88b13400d235d5c18. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/QM24S2306827.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03e1c3ac0016fd3193c358eb82c3726dfeb73a5a2ae9dc217c75f427b2ab744e. 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/QM24S2308381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41711e756b067c8a46e854ed6bed11837a2e194f947602aa1983c94c61bfcbf5. Chain 2 (Bitcoin): anchored in block 958686 (2026-07-19T06:43:29Z), 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/QM24S2403145.
F*CK U SKRILLEX YOU THINK UR ANDY WARHOL BUT UR NOT!! <3
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x148310a177638389a2e0bae9ee2ae8fb69bb773c2bf1b8742950d1059e34803c. 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/USAT22501802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b11d73b66af02ae195a8a8ec413154ed77ff20100fa20c3b649d5c6de9fc9f1. 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/USYBL2301075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x148310a177638389a2e0bae9ee2ae8fb69bb773c2bf1b8742950d1059e34803c. 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/USAT22501802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7019a4cd9506eccdd6f61bd31ece5fc5fdf833c192eebe383ab5ca38121ca418. 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/QZMEP2488344.