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 0xeb44e9d91c50b71cb52cc422c8b7cda16c66e0858a1b16c3876a1b0f56521c7c. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/44fbc1a7-b2cb-4007-a2cf-46d74c384021.json and https://artists.proofprofile.net/proofs/artist/44fbc1a7-b2cb-4007-a2cf-46d74c384021.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 0xfbfba709610f592457a786ca924edb63d9d7177dfd674670818b1c8f297074c5. 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/QZHNC2371121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4510184ad99c6ead5bdd6fb27e9063ec8cc85e9718672c42b5f66e49374bb0a6. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QZHNC2371126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d1a74a28511e5509171c601924998b4f71bbfef53526a1b712c3698bdf30d78. 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/QZMEP2044937.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fa0e49a7737fab206c0761d564b035c2b0fd7327c88f912c624247578539f01. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/ITQM24000001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfea7de0aa8add85be8fa3c917ae9974b01a7415608a642d870a2c337eb52e47b. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/ITQM24000007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cdd4ad100bab0d3fa2f8a7e2169d4f92e3086d748eccd20704e52111d87953d. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QZNWR2161751.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeff204569277cd55d3298529403eac217b2c6682cfe31d0831f913689c1d5cbd. 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/ITQM24000003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x919e0acbd7a7299715fc5963535f9aa89eb25b2991d9e3a4e4dd4c5cedc4f29f. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/ITQM24000005.
Mani E Calcolatrici (Elderly In A Hurry)
Come Tutte Quante Quelle Cose (Mayor' Strip)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35527bb73a38416cb9eb6a57a4716a9a74818a63429fd1baec175cde28ad57fe. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QZES62413269.