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 0x1c3e5abeff648a54e96c9a0830b6c65743fd442a38c611ed47ad249092b9720f. 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/2eef6f63-505d-4105-80dc-4f675ead7193.json and https://artists.proofprofile.net/proofs/artist/2eef6f63-505d-4105-80dc-4f675ead7193.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 0x2559a86557b093a94aa6fff8d1d529ff6a54fb044a229dae57ea5d4a28c05731. 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/UST8K1845049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b94de7e141ec14e7caccbeb29782e5fd7d707951a4db7fb1a88e9d1755295b6. Chain 2 (Bitcoin): anchored in block 958069 (2026-07-14T21:37:55Z), 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/UST8K1852973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cb9e6538bd8f4a4da7cc86eaa9af0d9308a514928b4cb279650fd2a0a61d316. 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/QZK6K2037621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfce0038211f45fff0d5227432832b78ae2d773994ee12d074fd9e15dbcd5264c. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T02:40:54Z), 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/QZK6K2037623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b9e50dd87512d76e2905b62065c84b207850a18258fcdcc1684006b71d7ec8b. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/QZK6K2037627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe643771cfc7f1431ea832dca855d04f03182e1cb95bae32d6d62f140a283560. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QZK6K2037629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b3690e714fdbd51a96eae1f5663df7c3b5ab0bc1dede2d4773640d5b3284c2d. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-17T02:11:06Z), 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/QZES91896732.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa13f5963ad98a94f5da1f8264b2180ebd87c39495a46c7ade5f5012a4ed5c46e. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T18:22:53Z), 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/QZES91896735.
I maestri del colore (Jewel Case Standard Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66c3a2745af7470f0bda9d01d823b0e741a8bd75e7e308e26debacb72449c3c0. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/DEKR72300358.