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 0xe3cf1b69aad2e32332c6e276db1838c9f9eba3d0b73580bd9f5f2250d2d41e11. Chain 2 (Bitcoin): anchored in block 954063 (2026-06-17T07:49:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/46bb615c-7c0b-4f8f-a463-9755442024ec.json and https://artists.proofprofile.net/proofs/artist/46bb615c-7c0b-4f8f-a463-9755442024ec.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Alceste, LWV 50, Prologue: Rondeau pour la Gloire
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 0xfdeed157b38c3f5a052db97e8f95a7427b0c21bc471269ec322a315ae0dd6f57. 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/FROV61716441.
Alceste, LWV 50, Prologue: L'Art d'accord avec la Nature (La Nymphe des Tuileries)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2726fa05ebaf2ad8c12df674e21ebdf0a5f5ae4fc4a2c3a87a2534e0a5aa633b. 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/FROV61716444.
Alceste, LWV 50, Act IV, Scene 1: Il faut passer tôt ou tard (Charon, les Ombres)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57131e76e4a296c83111bb1ee3fc2ed329df87bff991f477b80f654b0a21a2c3. 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/FROV61716428.
Alceste, LWV 50, Prologue: Air pour les divinités des Fleuves et les Nymphes
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dd3ed0c74b8d5edf8a3cf11fc15b8c49edc9918fdfc761d70da06ba22d7bae6. 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/FROV61716449.
Alceste, LWV 50, Act I, Scene 9: Le ciel protège les héros (Éole, les Aquilons, les Zéphyrs)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8a9b5f87afda8b0fe515dac818f62089433f41d82d21681daa9424daf0eaa62. 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/FROV61716410.
Alceste, LWV 50, Act II, Scene 4: Marchez, marchez, marchez (Lycomède, Straton, Admète, Alcide, Lychas, le chœur)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x810f84fa28f6628cd294e767f5f641bb5e0908393b5f1ae67c0cd82e17e4407f. 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/FROV61716414.
Alceste, LWV 50, Act I, Scene 7: Air pour les matelots
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1fb4f01c5ddec2f3b4cb06cf238b2da1cab9d039733bc72cf1e7d63b5855471. 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/FROV61716408.
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
Alceste, LWV 50, Act II, Scene 3: Marchez, marchez, marchez (Admète, Alcide)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbae58e35dcf8b6a94bc593ee1fe60c867f9f40ab1b8c79c6621c7dc3db8cce29. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/FROV61716413.