Matt Gray may refer to: Matt Gray (footballer, born 1907) (1907–1985), English footballer Matt Gray (footballer, born 1936) (1936–2016), Scottish footballer who emigrated to South Africa Matt Gray (po
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 0x3ad8e9dc05755364d007d3b431057c842a476557137bc1edb6ced09985fc286d. 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/94af2157-e946-49aa-8854-191194f90e1c.json and https://artists.proofprofile.net/proofs/artist/94af2157-e946-49aa-8854-191194f90e1c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Last Ninja 2 Reformation (Back with a Vengeance)
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 0xeb7e6bf5fb50ee2859f1bf725a08684b9c9962f2e20b037d4db1ce0230974ae1. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/UKKZW1600007.
The Sewers Loading Theme (from "Last Ninja 2")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c40f19decbc7034a586b743ef5e28bdda8b7930c258dc8c2455e1d8b9d692a2. Chain 2 (Bitcoin): anchored in block 958404 (2026-07-17T11:34:58Z), 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/UKKZW1600001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x532e7513d68f3d38dc7fd4e432b134f840742d9e1084b7de43652d6265d909f4. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/UKKZW1600009.
Central Park Loading Theme (from "Last Ninja 2")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaca331397951d1ae5bcb8afe35bec80c9d3a7df8663f00a4cc6ca83d481c1d21. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/UKKZW1600010.
The Sewers Main Theme (from "Last Ninja 2")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f32207d8342dac3fe5bb6eab6a971e5cf75198a8273f4744fab4afd171e6e3d. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:34:21Z), 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/UKKZW1600013.
The Final Battle Theme (from "Last Ninja 2")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28d01415dd49a4e9ab1f51a6bc1489d136d942375542fd842416805609f35fb2. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T08:41:41Z), 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/UKKZW1600002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7229d0c368793f123b2b05812047c8317d3553d24058d0f34ffaf5c2c2250aa1. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/UKKZW1600017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39ac93393fd96fac5b1475cfd562f34f789b3f2425bd136a34d644d94e9d985e. 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/UKKZW1610002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a7a7b1dde3a9fd3edc4d0af4c372927179f212a305404e85a59c6def76f8fb7. Chain 2 (Bitcoin): anchored in block 958067 (2026-07-14T21:26:15Z), 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/UKKZW1600072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaddecaaaf69e8cc296a21cc70d1662e765c4454e73013b3721fc35c0d8b9168d. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/UKKZW1600073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8835d8c4e697417d4bfe8234685691bd1fa2c62e03d9a8b9118bb9c9afffd7f. Chain 2 (Bitcoin): anchored in block 958817 (2026-07-20T06:38:18Z), 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/UKKZW1600074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed9fe1d7c776a1f25dcd6ca4fd28e25a93b28b596175877f9e6916b403384fb8. 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/UKKZW1600056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2345bdb7a3fccf1f375908ed5263beac679036030642c7ef457a54321496e5ba. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T21:52:57Z), 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/UKKZW1600071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c99916851a67be56a640bf9c15d6ec5bdbc6ae8dc3e0bd7eec713547a12b44f. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/UKKZW1600057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x453b768de67bd74a6868c97afb8bc39c4af287a68d94240e80a4581858397125. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/UKKZW1600055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a7a7b1dde3a9fd3edc4d0af4c372927179f212a305404e85a59c6def76f8fb7. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/UKKZW1600072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaddecaaaf69e8cc296a21cc70d1662e765c4454e73013b3721fc35c0d8b9168d. 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/UKKZW1600073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8835d8c4e697417d4bfe8234685691bd1fa2c62e03d9a8b9118bb9c9afffd7f. 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/UKKZW1600074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x450feafe5c9d2b90f0cdedaeb0fa462696e9b5bd04aa67c861e82ae29422b0e5. Chain 2 (Bitcoin): anchored in block 958918 (2026-07-20T20:02:12Z), 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/UKKZW1600064.
You're a Superstar - City of Love Club Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b79a6dd17f2e5bd79b79db649d456a54c81246ae34ccf2f1ce4a9ee9c1a24fd. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/CAV169800703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b79a6dd17f2e5bd79b79db649d456a54c81246ae34ccf2f1ce4a9ee9c1a24fd. 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/CAV169800703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b79a6dd17f2e5bd79b79db649d456a54c81246ae34ccf2f1ce4a9ee9c1a24fd. 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/CAV169800703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b79a6dd17f2e5bd79b79db649d456a54c81246ae34ccf2f1ce4a9ee9c1a24fd. 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/CAV169800703.
Last Ninja II: Central Park (Mitch Van Hayden Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3493632621da33f81c63aeb4d40d5826b08fbe8321d716c76ff65aea0bba4527. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/TCADN1874254.
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