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 0xa0c5f8d9549df2ee16cc59771b0f367f84e21d55bb632886a851d7b62c885cbf. Chain 2 (Bitcoin): anchored in block 953820 (2026-06-15T18:35:57Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ffbe3556-70c5-4143-b0a8-2488402b80f1.json and https://artists.proofprofile.net/proofs/artist/ffbe3556-70c5-4143-b0a8-2488402b80f1.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf95931f538e59c320eb30df6f2495233c44020bbb504cb1c55b11f3c092a6a9. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/USAT20201305.
My Baby She Left Me (She Lets Me a Mule to Ride)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1953f7e6ebb7450346d23a5e36593a6925b081296d1cfdcb712d5854db7b13a3. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/USAT20108018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fc703b9a979ce264bbce09db5595042540aa5a37daf345b0e6142f36e8d182f. 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/USAT20201306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1396ad3fa2b19c15a9d6fbb48223565d677e249ccd23c6a8940c7e101565d36. Chain 2 (Bitcoin): anchored in block 958268 (2026-07-16T11:08:20Z), 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/USAT20108019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7168cb7bb51f09c115c3ce31d7645c0ac3925c63cc83ab34403badfec66c270. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/USAT20108017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2153d7822b156a7e403bfb0c8a056bf3b58ab0fce1dc35282f633df51e4a83b. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:37:55Z), 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/USAT20201310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67fe3d2a1877643f98a1fce785a5c9996cc769a51c2efacbf0a97e9d01504a9e. Chain 2 (Bitcoin): anchored in block 958495 (2026-07-18T04:39:02Z), 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/USAT20201307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbe7eb638081bd347ba0c08494d2d3b87ec21ac985da8609451b7c2f0abab605. Chain 2 (Bitcoin): anchored in block 958268 (2026-07-16T11:30:15Z), 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/USAT20201308.
Buddy Guy & Junior Wells Play The Blues (Expanded)
Blues Masters-Buddy Guy & Juinor Wells-Vol. 17
Bringin' The Blues Back Home (Live 1985)
Buddy Guy & Junior Wells Blues Legends (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc1d17a7096310da0ac2b60a5933307abb4c4d86a1efb2cd6eefed699956096c. 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/USARL9180206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc1d17a7096310da0ac2b60a5933307abb4c4d86a1efb2cd6eefed699956096c. 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/USARL9180206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d091472a0271aff09b4f31366589ecb65d2c31eb80e53cbaf4beaadaabfa854. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USARL9180212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15d1d6bc99762a8a39ad9ff906ed9633aa22090ac3acb05cd0b0482c82e0d8aa. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/USARL9180211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfc4453af3885a3a6f67c0c60df2175692529a15382ed30d994a8b8bb6e1be31. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/USARL9180213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9de65385168d63c0e1745e06a4b000ed4977541af67448fca902646cc4052f22. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/USARL9180214.
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 0xd351785753abbcfffd0c2bc5aaf97c8a6c16f75b465fe27cdd4d653ad8f2d84d. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/USARL9180205.