Ken Griffin (1914–1988) was a Western cowboy, leather worker, magician, and author. As a leatherworker, Griffin helped transition leathercraft from strictly a vocation to an accessible hobby through h
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 0xcc7a1eeb58158fb4a4bf2da2c3176748a8cc5d3b3bb7a9bd3c6f8e5dbb54887c. 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/9aea312c-7bbe-4928-84e3-fb36accf9068.json and https://artists.proofprofile.net/proofs/artist/9aea312c-7bbe-4928-84e3-fb36accf9068.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 0xe86acda3d506575229c8f234f8d4e7a2144bd730c7768f9b34f4b0dd6940b28f. 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/USSM11101380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ab0f3479ba4601fc06d1b3e4904b61de5c89f64ff0d8b5019369ebfb9980022. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T08:14:15Z), 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/USSM10113228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bfa20fffe11eb946befe5a499415adedf054e372224af3fcf249fb500639750. 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/USSM10107589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1097952826fa9cca66473c9053b66d92a14fabde8d5799f3a1bd5fbb0d15fb22. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/USSM10212444.
Vintage Jazz No. 127 - EP: It Had To Be You
Vintage Jazz Nº 49 - EPs Collectors, "Ken Griffin Al Organo"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x902358ebaf26373071b1523ee44c61c2722628310f983da7cd7ef782b3defdfb. Chain 2 (Bitcoin): anchored in block 958834 (2026-07-20T05:55:47Z), 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/ZA42A1715341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x941f34fc71c9b08d86365b64e9f9de0070d8a10e10e430d27a28e568441b645b. 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/ZA42A1715342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7305201d8fa93c5e738bfd56be81653ffa279bb4985336083a1450a65144368b. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/ZA42A1715343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a57ca8caa0c51cefe7879ece9312fe532e34d0c82a18db6390005ffb827b272. 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/ZA42A1715344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e5ca04b517b9aa24032edbeed046a4d3a835d706a1029d7a16f44e34f986bcb. 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/ZA42A1715350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7c8378461ffcb14349b3693e07e62e35a7941ed640c8bc08f53d5d2225bea53. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/GBDAG0801871.
Juke Box Polka and Other All Time Favourites : Ken Griffin at the Wurlitzer Organ
The Organ Plays at Christmas (Christmas in the Family)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e70e223b1ddf5296fba99dad1a3c6389d5a11e61447f05c1884d0c60be84cad. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/USLZJ2223908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cb6d5ef975d1f073c51b23b4d7ca098cc38a0d0cb34d05b0837d1754008ff54. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/USLZJ2223914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ad1356da191bc8eb6a00e7ace7a63bfea499f363cdbd2f3e538cd19b71039e9. 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/USLZJ2223915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66249be62fce20e4564e79fbad608c1ef06bdada9e973ebdf23236110e34abfa. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/USLZJ2223920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03848514c473f30d0e89185596faf3ca3d8d1e54fbcd6110a4d2088f28094c74. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T13:14:05Z), 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/AUXN22258151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40787814f08a613fbb9677da1f9f62fae2bd98ec8b3f2ff084209c6ec66f6c9e. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/AUXN22258156.
Lo Esencial De La Música Instrumental Más Hermosa Del Mundo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe86acda3d506575229c8f234f8d4e7a2144bd730c7768f9b34f4b0dd6940b28f. 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/USSM11101380.
The Many Moods of Mad Men: A Musical Companion
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b48ba38d99825fdf1199e8a4cc86691bb39476c44e8bb36870194512df28f1a. 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/GBSUW0735330.