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 0xa4275637420630bd61c9f0693099c30ef1381df77c232d5d99742f008236a088. 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/e536d755-58bf-4f12-befd-a6e18c54adcf.json and https://artists.proofprofile.net/proofs/artist/e536d755-58bf-4f12-befd-a6e18c54adcf.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 0xe9a266b8faef2094384e40d8faa3a8a143ddd6814907cb094604bdaca9a2001f. 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/QMDES1400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6fb13d88666a3bda96a9277424b877460bc555566e182188dadd6a6f3c88927. 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/QMDES1400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc80d95b7b1522c5bcbdcaad8c821fef9c0ed8322c4a75f532dc34ca017460676. 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/QMDES1400004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53428bd47b7d539608cf902f5762ad7e06f4d11a9d284e1891ce815f06a1deb7. 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/QMDES1400005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61ed271f0617d133cbe30482daec90885b20a1bb1291a8b773ebb2f1b6d24a73. 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/QMDES1400007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeff77c7ab8709ba54c3c920739b345a40fdd879223ae2b2177b13926a7d38e3d. 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/QMDES1400008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdd7b4c44f0f2ae83baa6804693d32c89f2c314fd0b5096452ab241832cb6f39. 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/QMDES1400009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4993c8f501ece8c9a998f0fa41252310e3a7b4efc68cb014fac3b59ac6e761ba. 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/QMDES1400010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5983e998b5a7ceddff364aefac853050c1e214874548f48249791141519b3692. 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/QMDES1400011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62217a0d154f641eb86180e088030cfe7b8d2d48e60fbe89fa507a54e53b6786. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T17:41:07Z), 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/QMDES1400012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d02ead7665c0f68ddb21f25cd4f9434f8bf89cc06ae9142bc72d184268562a3. 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/TCAAZ1150192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fdff65fb60e97ab8009f6eedd0539b3320b117d66a146ae137c8064dae9aab7. 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/TCAAZ1150202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ea350d265fa36727e5e6f922180b36f6f447fee0f64d7ac1bd2360941826216. 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/QMDES1700060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7698c9d8ff8942179b6e3b2164753a7d96e5c4f1b09e6e62d82c99d9d5bc9680. 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/QMDES1700061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7194d25453666bddaa2811cf393e90e47209ca71c58e17ee3a0ebfe86f9f9c30. 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/QMDES1700063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8894344b03bd393c3b2933a64cca7cca6c5ca52ca6e6c238691171149a42785c. 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/TCABB1103897.
Seasons Change (Live) [feat. Michael Ketterer]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fe4e27becc5931abfa14af697bd1c050f359970c09b98703d6532462ddc3f92. 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/QMDES1400076.