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 0x87f13568bb9d57c34fdb8ab8407b43b7f567aabdc47bc39d151f80b2a69997b0. 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/ccf97942-91d2-4272-9b5c-6adf80937363.json and https://artists.proofprofile.net/proofs/artist/ccf97942-91d2-4272-9b5c-6adf80937363.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 0xb0c3aa602137050d43e4536947edeb1586e171ddd9e3f37e5ac2502df318af16. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USUYG1408085.
Dance (feat. Snupe Bandz, Kenny Muney, Joddy Badass, Jay Fizzle & Big Moochie Grape)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3f168cdd8d57725767b9ce3bff3781f89dea729b96d5c7ecfa647ff7e4dfc26. 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/USUYG1379838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdbd4d13326097ef5b26fb2de1b9ed18710ad11228cb3cfabfcc0273f74e45d2. 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/USUYG1379846.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0c3aa602137050d43e4536947edeb1586e171ddd9e3f37e5ac2502df318af16. 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/USUYG1408085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06ab0a15dba7f0fbc9d534aea5ef7710e31d110b6f7cab296aa4813e7f6c65bf. 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/USUYG1103313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd69de4a730234744cdcdb53831da6ae30af761483af3afc0e5b745b33a641f56. 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/USUYG1103315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2486e3c2ad09c894280085b0edd7a49e5096ebe3f32530a05b6c8b07dfe7a3fa. 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/USUYG1103317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb80bd544f90b681d07f41a36ed617ba229179ff14c4aaf528afa7ba1b4752be. 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/USUYG1103319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cd3b11955c2bfdc7c40c8279b9b6cc900c5777da475a0ab959fec8063abdab3. 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/USUYG1103322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77256b8d722928430f7189d0ed72134a7404a1f8266d9f7f7dbf339633dbf471. 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/USUYG1103323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57aa1ec42656b505c6ffb8c524296711f618b3094e08733017efdb09bb837569. 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/USUYG1103325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde612b12b898d9cf2bf8ad8586505a9ad851176749bb92cd4f6156d3af443154. 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/USUYG1082812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe68ed18bab102a5d1953f4e6f3a4ffbd8bf08ef2c60435c892c306d90b8b7a4a. 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/USUYG1092195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e391ac0da747464cea1194436a00e5a895be1211ed334cba71271cffb95f3ee. 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/USUYG1092292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c8aeba0a11c8e51052c1eddc306ce022e6fec9f8c60adf27fa2d15f7b8919c9. 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/USUYG1092294.
Unusual Niggas (feat. Key Glock & Jay Fizzle)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb06d40e7e9c7a01f574ffcb8e2f589151c49f4e579b5eb7c6229fe820ca4699c. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USUYG1174295.
Changed Up (Remix) (feat. Scotty Cain & Jay Fizzle)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37dd29a8184140f3b41280e52270264d4253d842b5883e814914d645af638767. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USUYG1187376.