Master Minded (foaled April 14, 2003) is a French bred National Hunt racehorse who was trained in Great Britain by Paul Nicholls. Early days in France Master Minded started his National Hunt caree
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 0xcefe7ea98a75fb4ddaef02b24b63820bc5d0c596b83a5e4eebefaf15232acd0c. 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/2d0b2c0b-6367-48f1-bfea-889ff988aa3f.json and https://artists.proofprofile.net/proofs/artist/2d0b2c0b-6367-48f1-bfea-889ff988aa3f.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 0xadc5be5219598215fddb05c90a305b535e50f9c076564db51ae33fcc6dbd1f9c. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/USQY51476743.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x259967f8509e427af732b3f77893698682ee77e8f5bb7efee1f704ff9b6fcb71. Chain 2 (Bitcoin): anchored in block 958538 (2026-07-18T10:30:13Z), 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/USQY51476744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe84d973fb5f13378f060da6ac2585bc310e8451f7601259cd3eef49047df6669. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/USQY51557636.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c7286c0cd78ab6b773728007cca9ff30215b16002edc43ca6d30b82e8d43876. Chain 2 (Bitcoin): anchored in block 958322 (2026-07-16T20:44:14Z), 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/USQY51557637.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa891278437b496eb6352342d1f1e07833f6cad13e4f622d4a2452cd944259f8. Chain 2 (Bitcoin): anchored in block 959084 (2026-07-22T00:50:00Z), 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/USQY51557638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x854103b7be707d009f8035146902b680fc2c69655da5b1e87eb661ad5a2d537e. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/USQY51557644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0687149e4b58e5da786b772f27cc7d6d954ae7c06b4be1bb6e65791fe09486d5. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/IL6652205413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33cded89f71a5b167fd4189781674211c083d6a6eaaaacaa8adc63d6c2881767. 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/IL6652205415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc758a23c68e85f4411909915a377a35eaab0eb35a193efe424c455ea4513119a. 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/IL6652307225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x816d1af75bdad62aa96f63c57e5d91f2e11d7d8e2486ace39956d55aa9b9e7d9. 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/IL6652307226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4c421789116c97871634e7eb89f32496f9c51d65a442632c06c2d5f72f61c18. 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/IL6652307227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88d128514f5d02916404208ae71e25e853fc5190b2bfd12aea26c40442d4527b. 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/IL6652308104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf325f26f7b4e9bcb29c442f088ce3cc5b900a83a92fe5c8a057e4bae4d4b9c05. 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/IL6652307545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93bac37ea6a3592dfabcd53e9122ea5c29302518660cc359e21396008f575ebe. 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/IL6652410231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71eaa7119f542863e2f1f4658358dbad1be2883916327b1d8f0b48f223877f92. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/IL6652410230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda60ea360653d36f1f2cc7fcb9eb5fd2c446b3cdd651299af03643c31c970b56. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/IL6652410232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02dd64c08c3ea09925b06f7b40ae715ddca0067948df61149a030a2cd21f9e0b. 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/GBLV61503490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6060f7e2e6b03e8e6bf72955f9987cd009178cc3d34a910e7ac3f8b4b55eedba. 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/USA2P1918632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4955d01c20dce70f2f3fc8f0d436556f5ecc7ec8e91217a26f82ccf27e48694. 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/USA2P1907208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9ae4bdd8deb6e03a47a3eb8e2e49fee257ac4265972e7ef0470c90a8a57c13c. Chain 2 (Bitcoin): anchored in block 960285 (2026-07-30T17:26:40Z), 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/USA2P1488361.