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 0x32e310776f32b4e55b90524a46fd9f698e4fb508d4fdedafcbcac7ea8e62021a. 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/6d841fed-c960-4128-b550-b0586b3b771a.json and https://artists.proofprofile.net/proofs/artist/6d841fed-c960-4128-b550-b0586b3b771a.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 0x23d0a6cf4b83768443a0c2b4f0ba8e8d0834fe6967068a30bb0ec9b1b15c0cf8. Chain 2 (Bitcoin): anchored in block 959076 (2026-07-21T23:41:40Z), 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/QZDA62200012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab2ceda55c6a706f28fc9443bbf90906edeafebd1bb27d547965aba41e9686eb. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/QZDA62200013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4217d3351d487713992b1d1d43f36ca560dc6d9f47fd2b81572b6c629d586a9. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QZDA62200016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07691ae89994394d91aaf4b079e9d77f208a7623ef3e11d4e270e0751b3d51f6. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/QZDA62200017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99404a253cdb4fea2cd98aa99c01ccf1fc0e6ce1367d89fcbf99d46fef5c78c7. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/QZDA62323423.
Brined, Smoked, and Deep Fried - ft. Mutilation Barbecue
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcab3235af36ea7903cc313792ea28a1942612e3aef791f0a06156aba458db17b. Chain 2 (Bitcoin): anchored in block 958395 (2026-07-17T10:10:33Z), 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/QZDA62323424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe97fb95d40af5c650abc7958c97f5b1d9e2f9f708d21d3ab7785edeb2ed0c17a. Chain 2 (Bitcoin): anchored in block 958714 (2026-07-19T09:51:44Z), 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/QZDA62323426.
Blunt Smoke Suffocation - ft. Scab Hag, Snuffed on Sight
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58706e47a4185f0028f2cd1a4fd39f9ac6c4e9c08e5ac74626e11f16e548517d. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/QZDA62323427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b40f03ddb51d7f2c6f3e6eea921c9a370ad5c415248b8e0745ff4ce4ff46021. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/QZDA62323428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ea6e172b2e4a1419f89d427920c62a644e3cdf6a67cfe06aa8e10dc2256e389. 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/QZDA62323429.
Ritualistic Marijuana-Related Anal Defilement
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1f5a180c9104e5b31fd15be1dfe695ba709864978577e7002449d4aee404f47. 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/QZDA62323430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdf8b0267c4b3155e8136dae8ff7b24112ad40605ff3fd025a7e15d584812cad. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/QZDA62323431.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf502b4e0f4bc064a74382ab71c10a820145b9248b881cda37a04b0172315db6f. Chain 2 (Bitcoin): anchored in block 957735 (2026-07-12T17:47:43Z), 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/QZTB52281444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1934dccd812cfd71e459fcaed9d99285b92a5671c4d56898d35b05fbcdc664a4. 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/DES562411567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24eb5695523170979fa658684614a5084a1ed97ce4e6afc9508fd1ab4985f5f4. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QZHN82372675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc5a960d60f8c810fcdbd98bf7d0ec3d57d6ee546b197a519cc70ea8a82439ac. Chain 2 (Bitcoin): anchored in block 956861 (2026-07-06T01:57:57Z), 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/QZNWW2265363.