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 0x5ad6e8e568473433561910ef5838237b359cf926baf85b81c629d691cc1c5c13. 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/32dbe0af-c727-400b-bcd0-73c7ce3e8f93.json and https://artists.proofprofile.net/proofs/artist/32dbe0af-c727-400b-bcd0-73c7ce3e8f93.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Crazy Ex-Girlfriend: Season 1 (Original Television Soundtrack, Vol. 2)
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 0x089c93ca11b545894152de67501d3f7cdd28b7fb1bf19589781ffe1498cf13ad. 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/USNLR1600078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62e7b937d672a54c0551dbdbac3d4498d7ce1f72bda518196451db0e7bf17450. 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/QM4DW1726956.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ef272b6d3fadb890d2c2a937ccd3ede2c623849771835f908ad10cd7b1af2b6. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/QZ8LD1761234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7819fa5d4a87222d6397864a69c3e2e93cf25c7488a3c5732791353d75f3fa8e. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/QZARB1890221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62e7b937d672a54c0551dbdbac3d4498d7ce1f72bda518196451db0e7bf17450. 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/QM4DW1726956.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ef272b6d3fadb890d2c2a937ccd3ede2c623849771835f908ad10cd7b1af2b6. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZ8LD1761234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62e7b937d672a54c0551dbdbac3d4498d7ce1f72bda518196451db0e7bf17450. 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/QM4DW1726956.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ef272b6d3fadb890d2c2a937ccd3ede2c623849771835f908ad10cd7b1af2b6. 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/QZ8LD1761234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x731cb6a4f842c338093fa96d223ab7c06747201603124585cd236e14276fba4b. 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/QZ9JZ1789140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ef272b6d3fadb890d2c2a937ccd3ede2c623849771835f908ad10cd7b1af2b6. 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/QZ8LD1761234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62e7b937d672a54c0551dbdbac3d4498d7ce1f72bda518196451db0e7bf17450. 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/QM4DW1726956.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc151e33937db4ae1b01bf90ec1c021f68c4b29c4b49b26aa1fb1767a8ff9b202. 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/QM2PV1775333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53b3caeb69fe7b5c3bb3a44c89758dfb0b9c288b563bc100eaffade0c62279ab. 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/QM4DW1779988.
Is That Too Much to Ask (feat. Nina Zeitlin)
Cool Music 02 - 23 Tracks for Cocktails & Afterwork, the Best Lounge, Trip-hop, Deep House, Electronic & Minimal Playlist
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa17a1335cf40f8a4787ced6fb0388fceb0c13c0571a1a29fa4bb56ef0be09397. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/FR6F31472060.
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 0x6c94a09cde4f619f1e39ff6040bbb09f6e0d4f0291e6c071147a79b9a0c76393. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/CH6542121963.