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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ffe37c2193b64f4d6b41241d29c96bd3315a9ec4302f4846b510afa990a1a7c. 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/e11c3cac-e9c4-4b78-824e-2d284ca4c23e.json and https://artists.proofprofile.net/proofs/artist/e11c3cac-e9c4-4b78-824e-2d284ca4c23e.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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9eca37f82aee469bdede0248556db11fb58fa154fa3383059fc529cf8999fba. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/US7VG2268306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b9e8955101023d793bc322220898693dbc2e50c0a32ae5ebd3add8a7a6c523a. 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/QZGLS2275797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0c0b382bddaf015e39565bb9d8c7d49f5fe1c164dc3721bacfe37db06f1499f. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T08:19:47Z), 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/QZHZ42279620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b86e78d5faa2634733a09408cdfbce4668d2d745ea8afac74c8da97486456fd. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/QZNJX2298112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf75b44bb22992a4b586716d450c320828affce2d36305db6f7c55e518f76b63e. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/QZN882305940.
SHAKIRA || BZRP Music Sessions #53 (Instrumental)
Pa Tipos Como Spreen | BZRP Music Sessions #53 (Minecraft Extremo)
JH De la Cruz Y Su Novia JAPONESA (7 HIJOS)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca1567d247aebfc0c68859c6fb462e03cc1ea599b1cd02e782a627c116e708b9. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T09:14:08Z), 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/QZHNA2305244.
Bowser Peaches Jack Black (The Super Mario Bros Version)
Bowser Peaches Jack Black (Español The Super Mario Bros)
Protegeme Señor Con Tu Espiritu (Remix Auronplay)
Me Llaman Plex Mami (Spreen - Auronplay)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x416582e19498af963101d3b0a6f62666a799f439d11d818ca6d1538648f4f5c4. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZWDW2371183.
Peso Pluma || BZRP Music Sessions #55 (Spreen IA)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb371b4e07c43e032583c14d062754d4a4201afa47d7fc82769f75e0bd0083db7. 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/QZNWS2369587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77e464dedc2bffca6ab9de38f26a5679b909d5e480e3c5d8d13d35aa17f71cce. Chain 2 (Bitcoin): anchored in block 958596 (2026-07-18T18:42:38Z), 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/QZTVM2381247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48ed79104b9a4228b63d7258688f7ee8fdb5dd419d4f552e0aa3d0be7c1f783b. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/GX3Q92414535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb77ef6576959db070be9e47efcb667b1c1ee2ed0aafc00ef34f62ffcd531c98. 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/UKXN22435267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0ae0cdc8d03a11e6c989f2cb9906de1acbcb08331690655620a6b1189d5f5e2. 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/QZNJY2467409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x326757a77594b3ec3597f3155f74bf1e2a9e76013cb87f43286e3345c17dff67. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T19:17:28Z), 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/QZN882431399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba28e69fef7cb98044f2d3cf5f3f13bd5d9f8af48d895c42bab12848781ed9dc. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZN882532428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3f134cbc4c78b0e3f9d7a66b4c5502c6dd7e3020d755433ddf2286d1485bdb6. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/QZYFZ2502014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x445762416a2bc1054a40c169cc5dec74ea6eda66460b3aab833425f9846651ac. 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/GBMA22462089.