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 0xb2dc771ea80ee8045615b9c02d057b5f493947d398333c590815b9834baf5478. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/78bae528-fac6-4d47-95e0-11c46e7c2e3c.json and https://artists.proofprofile.net/proofs/artist/78bae528-fac6-4d47-95e0-11c46e7c2e3c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Go [U Betta] (DJ Pocket Xtended Version)
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 0x39bb912e96e29a18418469af90f24dc8da1899297eb99df7ac84523ff729e96e. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T21:05:52Z), 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/QZNWQ2222193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f8d13662da26dfede036bf8f7d12e8836e68f4b5c3b6825f53472eb7387257c. 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/QZTB32442212.
Boss Chick Hustle (No Smoke) [Radio Edit]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x172870cc7c25fdf22fc9dfc2b3f9c932c7e008351598893f7cbb29b7ee5e3b09. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/QZHNA2588836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf014cfce7e37529f029e375d32464108592c653216595292a634bb3e55989364. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:25:28Z), 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/QZHNA2569043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x231f6fce0d51b3e211fee52881e31d2f2c77622c9973e682914610390af6515c. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZHNA2569044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbea6bc03cffa444931a1f4fc9235018f3381197e130180eddd86910b1a747dea. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZHNA2569045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0fd6399f9edbea271eeb1b17e22d0e9b7d33c27b3bf8dc053c2b087a3116560. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/QZHNA2569046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf1765039857fb35f7c97d19282ce0abeb76400caf740b97e5eff57da9347241. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/QZHNA2569047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x745d4239c3bd4b09b2c5d68ce32808d4c1fda0f5974c8a6d1946579b10626def. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/QZHNA2569048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e6218e7a2c8e18361ef62e3b4da38622d0df5bc6cea0d85dab1783b6c02cb08. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QZHNA2569049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7e38a49abc9e6e57266bda9efabfe2502eeabdc2934dfd62a523aa8b14ecbe3. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/QZHNA2569050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb28ea6d44219b3a255615c5b469ba6e5d3438f286392506a78e10ade9418170c. Chain 2 (Bitcoin): anchored in block 958908 (2026-07-20T18:20:15Z), 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/QZHNA2569051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a8d295aebcb80b1f4bb5e398b61ba693b4ee13a17d8ac7f959d764ad326be36. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QZHNA2569053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9fa858cdc1768d398f7ab9c434ecb2e515799fe1506be8fd6456b472094cad8. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/QZTBA2517324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30beee69f37fbc40a34588dea8955d3f23e852783bfdf5426971fee43b8dcc02. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QT3FC2551656.