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 0x5cb62b7674c725ea17a10fbf692c966f1559e2d3f05be037aaadeb1d560bbb0b. Chain 2 (Bitcoin): anchored in block 953949 (2026-06-16T13:28:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0d005d44-313c-4175-8514-b5cbb52a048b.json and https://artists.proofprofile.net/proofs/artist/0d005d44-313c-4175-8514-b5cbb52a048b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Last Goodbye (Single Version) [Instrumental]
Last Goodbye (Single Version - Instrumental)
By the Grace of the Lord (Orchestral Version)
By the Grace of the Lord - Orchestral Version
By The Grace Of The Lord - Orchestral Version
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 0x7c07a0830c070dfba7218f137e10fe38fbeaa47f3d4195b226f4b6cd88b3bf92. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/TCAJJ2535339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x425cae7c741a817b92631017996ca49df7ee9b8f30e8ee325e75b78bbfdf28b2. 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/TCAJO2555435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6ceda80e70fe12fe8f7dcaa0fdc56413a1daadd05e13e1d38db9cc4031647fa. 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/TCAJO2555495.