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 0xd73e1ea58ccbd5d15ff5c5f74e9c7fcb56119ce659c5982ea1b6deb62e3dc2cb. 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/578340a3-4441-45e9-8e37-2cc2468f32f2.json and https://artists.proofprofile.net/proofs/artist/578340a3-4441-45e9-8e37-2cc2468f32f2.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 0x09447a4ffe0a483afc33451112292cb467325f4f27d49322308aaac4cd8201f5. 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/GBGLR1600088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14dae94ab501749ab488b138616336fb5c8e639b2c1ef5b259539732dfe27694. 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/GBGLR1600091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6518ab45acba71cf6eba0bd39b89a98b94a173dc976136e99ec399282501950. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/GBGLR1600092.
MILKSHAKES IV: The Men With The Golden Guitars
Thee Knights of Trashe / Revenge – Trash From the Vaults
20 Rock And Roll Hits Of The 50s And 60s
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c149408da6770fdbdf8c693f691188069cdc2457a62e166412127264d1d710d. Chain 2 (Bitcoin): anchored in block 958366 (2026-07-17T04:59:09Z), 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/GBGLR0501033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1b5d4d3eab97ee1743be7837f3a65b4b24cee6ad1daf8e97671ff9124536969. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/GBGLR0501035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09b5dea51e7b2ef2e2a4010b43564a02f6e298b665e8a255cc2e9be96a2ba558. Chain 2 (Bitcoin): anchored in block 957644 (2026-07-12T03:18:52Z), 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/GBGLR0501040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a350ff521bffcc15d2374705c7fd88b48214e518ac059aa56d6b485ff836711. Chain 2 (Bitcoin): anchored in block 958788 (2026-07-19T22:07:06Z), 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/GBBHN9100194.
20 Rock & Roll Hits of the 50's & 60's - The Milkshakes
Fourteen Rhythm & Beat Greats (Stereo Version)
Fourteen Rhythm & Beat Greats (Mono Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e4204716a960a329958ab03852e59f258d1e05430b12a33dca590fb48886375. 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/GBGLR0300188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44e9a204d192a000028548ccb2bebc32c58041b11aec2e287b5fcf6aafe19162. 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/GBGLR0300190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7016acf0414b1408facd544417ac2b4ce5ee7de9f6eddf4428bbcba03eb197ad. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/GBBHN9200416.
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