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 0x7af905ca9bd4305e6469901a2a6fa0b4ff1c2feafa0255bf6295c1cde0caeb8c. Chain 2 (Bitcoin): anchored in block 954502 (2026-06-20T05:07:36Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9bdac039-91c7-4229-a03a-5250f748ade7.json and https://artists.proofprofile.net/proofs/artist/9bdac039-91c7-4229-a03a-5250f748ade7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Armide, LWV 71, Act I Scene 3: Suivons Armide et chantons sa Victoire (Phénice, Chœur)
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 0xc69856a830ea7ab1b94e6e1a93f9ba9eb879a19780f640041d5e6142defbd6af. 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/FXR522412418.
Armide, LWV 71, Act I Scene 3: Que la douceur d'un triomphe (Sidonie, Phénice, Chœur)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefd4ab5af2830578519a63462368f6c1bf8a5484e30ad9c5eadf2db8cd4fff42. 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/FXR522412420.
Armide, LWV 71, Act III Scene 4: Je réponds à tes vœux (La Haine, Chœur)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b840a27b01c3c0376e021f59203d955f721155fb3f71f95338c9f9d36093fcf. 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/FXR522412440.
Armide, LWV 71, Act II Scene 4: Au temps heureux où l'on sait plaire (une Naïade, Chœur)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x821346167a2d4c2efdfcc6a4d99d597c26b870c420752a9f0933f1e47bad4591. 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/FXR522412428.
Armide, LWV 71, Act II Scene 4: Ah ! Quelle erreur ! (une Naïade, Chœur)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5a7c9934a068389d97e26f35bfae7582649fb13401609cb504b0b64b5437f2f. 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/FXR522412429.
Armide, LWV 71, Prologue: Que dans le temple de mémoire
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61f7ae2592c6c9b493dd847a3d63cda348a8c3e5e77383a14fd49f29e7f7dbc7. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/FXR522412411.
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
Armide, LWV 71, Act I Scene 3: Armide est encore plus aimable (Hidraot, Phénice, Chœur)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c75b3ff69e3891dfc01c805346f0c834a7e32e715db7da9ef4843c4120429e0. 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/FXR522412416.
Armide, LWV 71, Act I Scene 4: Poursuivons jusqu'au trépas (Armide, Hidraot, Chœur)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0281cde086ada5dd96716360fa02323d8be9ac5c834a51c95d2bd0a65f256b59. Chain 2 (Bitcoin): anchored in block 960376 (2026-07-31T09:09:19Z), 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/FXR522412423.
Armide, LWV 71, Act II Scene 3 & 4: Plus j'observe ces lieux (Renaud, une Naïade, Chœur)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb49b76568676e1569e054c12d76df78b8e154e05026100a6a07b68e2edbf0410. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/FXR522412427.