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 0xb55f883624c38c5c663638f1d09a46d14ec7e77e787c05aab80c96f1bd7be5eb. 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/c7d01cdc-a6e9-4e4e-a8b9-e9fbf56f88c7.json and https://artists.proofprofile.net/proofs/artist/c7d01cdc-a6e9-4e4e-a8b9-e9fbf56f88c7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Non Existent Love (feat. Tigerskin, Lazarus & Meggy)
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 0xc20fac0013cefda92f194142ae82cfa6d4a6c3eaa8f13706997a2518f1378aee. 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/DEAF71686088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2421045b1f1fc1b64a9e6c2ed8b07d7429eaae2a10b9265e2f085e173b5b675. Chain 2 (Bitcoin): anchored in block 956383 (2026-07-02T18:11:59Z), 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/US5X21711403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95ed14d13abdecf03b90d623ea1a3e8c9e60b371a8f4d426713bdc0727d9c9ab. 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/DEUE11510130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe144236db9639e26797b9eab36a9331cdbb0bd16b0d183f2ed247dce04dc14ca. 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/PLE071100902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32c97e02f3c4308aa4331adee03f6f0a812a9ba455ec899093e9f833f23ac355. Chain 2 (Bitcoin): anchored in block 958891 (2026-07-20T16:09:32Z), 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/DEAF71122567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb80153a06105eca2240507bb550b650c8fd795bb23a267177ea4374c1983525c. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:47:30Z), 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/DEY471816641.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72b28c63de203510c976ba99e22bbdd6636895b20d303b3aed40dbf36e4e346d. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T07:01:59Z), 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/DEXO11941860.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa46b6f8838297fae8d51df77178eed89ceab5a6fc4bde4c3ce317de59ace12f5. Chain 2 (Bitcoin): anchored in block 958721 (2026-07-19T11:02:33Z), 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/DEXO51910412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x720a7a3d85719bf5edaa61208d6fe670d2d66033fac55f43196fe2405c2cb66e. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/DEY472172259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b0f0485db223d15122990ba9054417ecf12f551ea4f69a84cb2d131661e7c68. Chain 2 (Bitcoin): anchored in block 957884 (2026-07-13T16:55:06Z), 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/DEY472172962.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7e2155812c4774fadbee704ece57a04d6252f5458357e00095e37dfb113b275. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/DEY472173725.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x546c078af74806724958e2ff51b337afd56334e923cd5fbc077e24584e4951a3. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/DEY472472490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23037048c99e56cfe2c551b13a15ce6f78950ac7a6890e775c00227ec79923e5. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T07:01:59Z), 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/DEY472570495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbfbdf25cfc0ed6c13fde656a5aa79030a1f6957e4598e10cd78df966b770173. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/DEY472573657.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bbd29ecaedb5ce91d93a5b0402fc987c1634caf0e07922acbfcf6dd079cddba. 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/DEY472088427.
Waitin' For You - Till Von Sein & Tigerskin Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc750d4aa9deb318332eb420abbe83c5c8c70c3c6aeeb8f554c5cc0d73580b93c. 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/DEP961300056.
Unfinished Business, Vol. 4 - Compiled & Mixed by Luke Solomon
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6af9ec4380d348770e14dd3f14cff68a0db2254c866c18553937095e12e460d6. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/DEUE21637634.
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