1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x8878f5637f7fe08304defe6ba3eebf19d47ddb55b7736e58895dd10d491f712e. 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/3d630839-f621-4ead-92ec-1d1e569daf17.json and https://artists.proofprofile.net/proofs/artist/3d630839-f621-4ead-92ec-1d1e569daf17.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 → block OTSBitcoinBlock must exist at that height 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 0xac568738fad665ea36e6990d5235cfe18ee60faa3fd7b5b37e2800dbb9d3045b. 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/GBAQH9501006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabf1154b316a1d466abe95e58c508d1a7a886cf2ab97567b53614d5eed6ce4fc. 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/GBAQH9501007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0f58a5d69b8fc60ee766a1aecfb2c9680a5a60fb8a2f0b07c1f6577bb3c1237. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/GBAQH9501011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28ae9ca4da3d1189536e3eb9e741ad98a91f864da119a495e9d8fa252cb3fa33. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/GBAQH9501012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4745e0fc3a849e1479b336f6ebc4ecc5cc0b1f83aa9e2faf59b18ad57fe52dcd. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T21:38:15Z), 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/GBCEL0800067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe45b19d42867d368f51af4dfe9a3ea713db745a63ab19c4e7739467c6d7c7723. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/GBCEL0800069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52669513c40493398ef7ed7db412349c9f22f011b6e1e7c790182e62572b619b. 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/GBCEL0800080.
Optimo - Instrumental Mix By Optimo (Espacio)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82d4772d45a006fa7672b23fe60cf940b55efa333f65feca5485a779e92dc559. 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/US4GE2400007.