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 0x18b9325859b5fbe3a5674347d5f3278a20d1f11f91d5a4dc2327cde2e3656c2b. Chain 2 (Bitcoin): anchored in block 953777 (2026-06-15T11:52:51Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cc7865c2-eaaf-4bd7-a340-2f47bc5202e8.json and https://artists.proofprofile.net/proofs/artist/cc7865c2-eaaf-4bd7-a340-2f47bc5202e8.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 IV, Scene 3: Reçois le juste prix de ton amour fidèle (Pluton, Proserpine, l'Ombre d'Alceste, suivants de Pluton)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x903f2166d0a8efd0ea1e0f8f2c2b2cbde136c9969aa0b30a0ee4db9b03b8691e. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/FROV61716430.
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
Le Concert royal de la Nuit, Troisième Veille, Hercule amoureux: "Dormi, dormi, o Sonno, dormi" (Aure, Ruscelli)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f12d287145b337d1e7955a052c50de91b5ba71e6437cdf2f1c7a0e25a567267. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/FRZ141505120.
Le Concert royal de la Nuit, Quatrième Veille, Orphée: Dialogue du Sommeil & du Silence (JC)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa48378d5cefde95eed1623b20ea73f337b58fe91da830c9b1327ad725337a0ff. Chain 2 (Bitcoin): anchored in block 957048 (2026-07-07T14:18:56Z), 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/FRZ141505150.
Matthäus-Passion, BWV 244, Prima parte: Nr.16. Petrus aber antwortete (Evangelista, Petrus, Jesus)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd413dffb5fd3b34f488d7ff34e91b75b3b2b9985a61219cfe5b09d21b6f8371. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/FR7JM2133160.
Matthäus-Passion, BWV 244, Seconda parte: Nr.38. Petrus aber saß draußen im Palast (Evangelista, Ancilla I & II, Petrus)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f35ad94b5f6be4b38beb6ed92d6002954e3cd60b7ba2cde446b541c7b66acfb. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/FR7JM2134090.
Matthäus-Passion, BWV 244, Seconda parte: Nr.41. Des Morgens aber hielten alle Hohenpriester (Evangelista, Judas)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3873ef9e7083ef12840767ed274fc7274b2021e0ae776bcd078ff8b0045c3a1d. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/FR7JM2134120.
Psyche, Act III Scene 1: Song of Vulcan "Ye bold Sons of Earth"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc633f274e19c3ad244ecac77a369dbe0637cc38a4c7dc157ff6658f9f3e6322. 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/FR7JM2141030.
Le Concert royal de la Nuit, Seconde Veille, Vénus & les Grâces: "Fuyez bien loin, ennemis de la joye" (Vénus)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64a85921c5c00fa35f41fd4317add3ed4200dd31c8fbd1aed91948a45a371ba0. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/FRZ141504170.
Le Concert royal de la Nuit, Première Veille, la Nuit: "Quelles beautés, ô mortels" (Mnémosyne)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb28c76fe37d622f7465f299dc421f89578f07f4384c09f423e66aedf38db6648. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/FRZ141504110.
Cæcilia, virgo et martyr octo vocibus, H. 397, Prima pars: Nullus audit, nullus videt (Valerianus, Cæcilia) - Et aquis lustratibus (Chorus fidelium)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae1169b6fb6ae40f96aa473a69a20375dff21286f1717344c28e3a9da440dc56. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/FR7JM1673020.
Cæcilia, virgo et martyr octo vocibus, H. 397, Prima pars: Acceptis autem ab Angelo flosculis (Historicus, Cæcilia, Valerianus, Tiburtius)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d4b0207d61b848aad5d045a3c74b7f553cb827358545cb38ed42919ea44c9ba. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/FR7JM1673030.