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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa807ff9fa9d24289b11094974d5d633c5a2d2d3528e71d91427a9b8e94c26ecb. Chain 2 (Bitcoin): anchored in block 953842 (2026-06-15T22:22:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/00379239-418b-4651-ae30-1cff819da751.json and https://artists.proofprofile.net/proofs/artist/00379239-418b-4651-ae30-1cff819da751.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Georg Österreich's Resurrected Treasures
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecb9a80b9a7227047fcc47097d763addbd5aab1aeaf088343063702d1ed802ca. 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/NLQ662481910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ca3e3d97b0a93d560db493c122af3be870dd110262069e0ead5d6fc1186443d. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/NLQ662481911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccecc0d9653ca6d74281a64c7d50e19798c01c9b92c9bcdb3589f12a60764ca0. Chain 2 (Bitcoin): anchored in block 960387 (2026-07-31T10:06:30Z), 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/NLQ662481912.
Me miserum!: IV. Recit - Ut dirus peccatorum anguis
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8aea03269e5e3d004bb812deca04d4dfddbfa2e1e64b39a30dca6eff6875b5d5. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/NLQ662481913.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacb362a6fe8716fbbd1abfdb67aa7d7491f8b82445e30ae91424d46ff18f6f2f. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/NLQ662481914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9c71b4ac11e145176a3c9f69d0d1a07db893c38567f4fe1c925bb3bd1c2a9bf. Chain 2 (Bitcoin): anchored in block 960389 (2026-07-31T10:20:10Z), 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/NLQ662481915.
Me miserum!: VII. Aria - Una guttula cruoris
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4df647a8d1858f88beb801eef8f4c895226bd01456f667b67b0dee754657fcdc. 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/NLQ662481916.
Me miserum!: VIII. Recit - Mi Jesu, tibi felix anima
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x045d6021f28cdfa7c614d3d7792d68a3ade2e68b3132d5572c3c06d084a7e284. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/NLQ662481917.
Me miserum!: IX. Aria - Jesus esto vitae scopus
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x578c4964a560594975dcb269f1a230884860cf1c6c959bbd3476808cf6501159. Chain 2 (Bitcoin): anchored in block 960389 (2026-07-31T10:20:10Z), 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/NLQ662481918.