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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaa8d3092af2acaef7a669339c4e3f38dd430a72b576409b58eeef75b14008f1. Chain 2 (Bitcoin): anchored in block 953871 (2026-06-16T01:46:03Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/06e816b6-d673-408e-ba11-b10e395cbc81.json and https://artists.proofprofile.net/proofs/artist/06e816b6-d673-408e-ba11-b10e395cbc81.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Wagner: Parsifal, Act 1: "Nun achte wohl und lass mich seh'n" (Gurnemanz, Knights, Youths and Boys)
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb52e854bd193e08c7455597252627503a6cd733e35e284c419657e4864ec93e. 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/DEA809100011.
Wagner: Parsifal, Act 1: "He! Ho! Waldhüter ihr" (Gurnemanz, 1st Knight, 2nd Knight, 1st Squire, 2nd Squire, Kundry)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe25ca61d7e531ed75f6ac5700b6a795c70ff2a8b2193fa12d30e051f14a279ed. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/DEA809100002.
Wagner: Parsifal, Act 1: "Mein Sohn Amfortas, bist du am Amt?" (Titurel, Amfortas, Youths and Boys, Knights)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb110fde0e2eea56efd144bf0d5ddbe5267495c2610a0326aa98072c69b19f7f. 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/DEA809100012.
Wagner: Parsifal, Act 3: "Höchsten Heiles Wunder!" (Youths and Boys, Knights)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a7765dca77d5b7eb9d6861d1534590cea006abab1af58cc46de729fbf4aa770. 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/DEA809100040.