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 0x97f452643f1c82c10b732fdaf50fd370ff2f5ee543372a493d88997110a1271e. 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/457f9dcf-0476-4b0e-899d-44dafd359459.json and https://artists.proofprofile.net/proofs/artist/457f9dcf-0476-4b0e-899d-44dafd359459.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Friday (feat. Mufasa & Hypeman) [Dopamine Re-Edit]
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 0xe8d522d776d1c5652bb5a86e8ae8fa54e253b69b58a06547d1e94b62221f04dd. 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/GBCEN2100109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x943c8ee1d4d0d8c23533227c9f63a6876175e81885dd6b30d93db3833585db3f. 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/ITV952400275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xceeb2731c67f916f7b05c980ee9441751d8d6a6316e284efc71f133c99c5bb53. 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/GBCEN0800951.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20c3507df4f629d632ac3b1595c21cc88488919fef5bf9e14865616e81cb2350. 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/GBARL0701241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x609a376c02ab8f3cc83fcde207df3b135a2a246423604d5a5e0d4561a4d7da1f. 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/GBAHK0100089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bbd1ffaf81831ed1f5eae06e5af51a6fb4274c9505a81d91c46b3962cee1ea4. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/GBARL9100115.
The Future of the Future (Stay Gold) (with Everything But The Girl)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7a94d358bfeb2b2c2d5ca9bf591e6a644935550f917dd49579424443bee15b6. 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/GBARS9800062.
Calabria 2007 (feat. Natasja) - Radio Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44c11f8d71cc6ed28b4933f02ce7228ffc14ef3b06dc291c99820e4cb0c0eed9. 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/DKEW50600106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4884567a79016e3db8da055e4351d9062547802e4eecfeb9966f0333354a00ef. 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/GBCEN0900001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67264887f4f0a7cd37b3564284eef249788179cd2c9db7bb98e0147833c0d17b. 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/GBARL1500704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bbe3fb4889b31a5e5143aa49d5d171a72fcc3614ed3aee73aff6023a6cac566. 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/GBCEN1400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb219b52d691e2204ee10e50e0869ea3b31017a6c3dd8ca274959f7bae49c884d. 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/GBCEN1900047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75222a23e7b2bcaf41dbeacacd8a559d583a410eec9c061b8ce4298f7798a842. 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/DEE862200810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2356b14d1a2136de545beb0f20d0f5cf4b2fd4f7b7e7a31d1325fab0057df928. 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/GBARL2200333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6ec262e827b4f7e4697a2ff0846fd7db3f06e411b60caf210c78714ec035740. 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/GBCEN2100021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72d02888bcd9620b9bd9bf90da883aed59625a8469e3d42ec76b0067dd08adea. 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/USSM11300080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb3e825926c05f33d69c5f72c17fb66d240c96aa51e529dc66c2001a5cb7e0f2. 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/USSM11800523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe40f964d86089154fca1b40892b3bba3bc5a9671538002af1e2c1a07457571b. 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/USSM19605851.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72500ef825212630aa66b627f66cfda834dfaafaa498fc911828c43448b7c570. 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/AEA2D2400433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d97d5ec3964b17eed163b6b217219e71f5fd3661cace0010f19627a53cc9fcc. 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/AEA2D2400440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d1b4f6c3ea79104434f9c6b84f69d093a05741ebad3f844b62a35b1fc8819aa. 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/QZTAX2285402.