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 0xb8d884f55510779a7631b645bad7948b2f031726ffbd92808114f9fd79f14853. 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/65feaf16-fb89-426e-8a3e-e5e3c34781cc.json and https://artists.proofprofile.net/proofs/artist/65feaf16-fb89-426e-8a3e-e5e3c34781cc.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 0xd457d866a772300867762b8f5a288b179d976e5008fba3dd97df3764136682b6. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/GBLVU0600018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4aab0e91f26e20b371e2c5ae04b250e660e97e34864c282ebc5a0c515a93f6a5. Chain 2 (Bitcoin): anchored in block 960210 (2026-07-30T05:21:45Z), 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/FRU700700034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd42eeedbf17b08cb08ebc195fcdfe0f1afb880d7b64b9e82a68373d6e77f5c32. 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/FRU700700069.
Muzzle No.1 - The Black Ghosts Instrumental
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x484fa02464173e38d2cc78c7b764cd19d1d7e8444d4145043806a9bed4a951fa. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/GBEFR0700903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x476a7b71ff83641214b7012604b239d665de5aa94d736d4bfb630ae906d8a4a7. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/GBEFR0801310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dfa9822b4cf0cede154b56982d685b76c1f319a0099cf860ee18d6f55e838c1. Chain 2 (Bitcoin): anchored in block 958218 (2026-07-16T00:33:33Z), 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/GBEFR0801313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x740157c0e03baaae7733d5423b9d3d398803145b2ae621083878981e543dbb1c. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/GBEFR0801315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x762e6abdc5420581e5f2aba74457839fd19f1e77abc29c84f6eb8cc9bd6301ad. Chain 2 (Bitcoin): anchored in block 958366 (2026-07-17T04:59:09Z), 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/GBEFR0801316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe49a2a54e4c328114eaf9d6c47a096d2d96819fda87917cb2c0e6177323e063d. Chain 2 (Bitcoin): anchored in block 958682 (2026-07-19T06:17:12Z), 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/GBEFR0701191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x859142cb1460cb888e0e8d5188152d50c4b33d3c4068554026ba7ff98b91cb70. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/GBEFR0801293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1c94d3975511743b6112697eb2ab27fb93f866251762150e697046671c37c0f. 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/GBEFR0700905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16f0576fb0db11d7df44ef52e141d82d9277a513a7667e2548d098a69c5d14ef. 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/GBEFR1102670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x397a7ca28e0549fe8b8ccdfd2575a81a5cd6434d31623b0345506b189f5749fc. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/GBEFR1102671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6fcbfa69589b54b12e0029051fd926dfd56abfbae0f7522c0236d2992417365. 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/GBEFR1102672.
Kitsuné Remixes Album #1 (Bonus Track Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd42eeedbf17b08cb08ebc195fcdfe0f1afb880d7b64b9e82a68373d6e77f5c32. 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/FRU700700069.