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 0xb96acfd160cf8a71948351a6abfb4e95d88c49e3cb93cc0b077e26b01a962ad1. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ab6dad2a-acf9-4940-b00d-0fbe101f4311.json and https://artists.proofprofile.net/proofs/artist/ab6dad2a-acf9-4940-b00d-0fbe101f4311.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 0x27b73f789df1a664f07635c9dc8224b024588abeb0cbd5dcc7e818f39916f0fc. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GBAHT1300471.
Mountain at My Gates - Alex Metric Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a33c7a0401b157f05b8f9b2f28ab34658a3908ccc40656097b6dd2979224d43. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBAHT1600228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03a3ff16331b1997547617f1f7cfd5fce44e4e130cd6bb2b5d39d8ca5b663b7b. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBAHT2000280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45f4b63be7c7d3209a960bc610d02701b8ad354f10fad413cd33a7b65bea9c40. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBKZV0725265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9607825a24232de5970e8c3f957db2b4d1233e426392496ba2bac690c6062217. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBAHT1901144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x800ed9454a9c968c16e7bd740c0da5230c570c7c3b797d5859692e8319662071. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBAHT1900390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16130ec1206bd7ac3df3361a0a040da58e2e4e05bf8c8b929a8cd18b417016c5. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GBAHT2000949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb0408ef4c8673b4652548c591a5777a00b62b0a8b35e06c02b1900305ce5efb. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GBAHT2000390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef4e5163f259f783b22067b2cca40dc6c289a6d09fa14c700d65ddc459124bcd. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBAHT1000112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10c749668a4fcb8330dcce84b0598d5c1cbedd8ae1f2fa6f424226e0d0c5aea5. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBAHT1600227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe53e50a934f0e5ccb4f2d5a69e18126e6d3f44d53baffb9e1f36ccc92d7cf2d8. 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/GBAHT1300540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cb3ba8f764b2088ab173190c91db91b2a9609251a2c995a876f688bc0d816ac. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GBAHT1300565.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33ff081f74a6fdde83a78b9365063573f964ce2ae0e7c9caf14f58ae767870b1. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GBAHT1300469.
Miami (Tim Fuchs Remix) - feat. Flight Facilities
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb131969c1570055f1834f98b1fa485e37c9d4a5d43cf642c67031d84df463306. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBAHT1000182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5f12066e7c6781d95e50bbcf87718535ae47bf1267b89f51e0ddbb417976ceb. 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/GBAHT1000113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9312c79414f9d7deaf121f1d2fd381b3a5f434ae7cf02cc6a377ea48c2e58fbc. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GBARL2000697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ec50c7a318314bb84253bd3be84d7d8a63407cd3c70c3e86e08636a69bf932c. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USAT22310026.
Dark Days [Feat. Sylvan Esso] - Foals Remix
Dark Days [Feat. Sylvan Esso] (Foals Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0c48f7bb0b8760457348039ec0f3d97c490ebd6f9e6ae9dd23bcd06ae052ed5. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USC4R2003341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09905879d8e7139366ccc404e02a077f6c5744230ff24e6538205607677f9f6d. 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/GBAHT2102106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ec50c7a318314bb84253bd3be84d7d8a63407cd3c70c3e86e08636a69bf932c. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USAT22310026.
Big Climb - Jack Foals Grouse Party Remix
Big Climb (Jack Foals Grouse Party Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9ef0e81a9c40147f4e9512e6ff7585f868e2e2250f2529aefbb2a702fa2bc37. 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/GBKPL2027904.