Martin Graff (22 June 1944 – 4 August 2021) was a French pastor, writer, screenwriter, and cabaretist. Biography After his studies in Protestant theology, he worked for three years as a pastor in Str
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 0xea4a90c3ea2616cc63bb5e21ef4a0405ef3f71ce29a0ec9f9c2547b06d3d3328. Chain 2 (Bitcoin): anchored in block 953817 (2026-06-15T18:10:31Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fdb60e54-ff55-4f6c-902c-4bf35ec3cd2a.json and https://artists.proofprofile.net/proofs/artist/fdb60e54-ff55-4f6c-902c-4bf35ec3cd2a.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 0xb5a6a23e4bdb33eb49b3aa6456fc1c53768e945b6031d3598aa15cf6303b8790. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/GBKQU2404919.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3925ad53ea13deabede65ec1e15e1889afba3d1c2753dd4a92d92c23ce3439da. Chain 2 (Bitcoin): anchored in block 958558 (2026-07-18T13:44:16Z), 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/NLD682500389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e2e6379a75293f3489e8dd35df62cccc874a4f785f7d6aba93fa58d030f9a7a. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/GBKQU2537250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x789976da18a6dca672fbffdc485d005b689011b3732b883cdbc5de13e95c8695. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T19:27:18Z), 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/GBKQU2581728.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73be2c1dffeb93c8f0bd32af364da06dc869bc74656b27db1d78507b32fb3ac6. 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/NLD682502348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5b892750445906db482dfbb0c46392d351e53e987e2232c48a95a946f8af0bd. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/GBKQU1684735.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0779541a8dc9fbb9beb6204300aab260f364d206c2116b13440b0b634b7835f. 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/GBEWA1910185.
Magic Island - Music for Balearic People, Vol. 8
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6db1776b91b24c5bd96e3baef59e9e362e29c9b4fcff68c2ec6c5c7269d3fa9d. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/NLD681701107.
I Will Find You - Martin Graff Progressive Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf575479f175d3ed7822469021878285db7492fff55cc501e13503ebda7a4260e. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/NLF711602439.