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 0x409e471d18517230b16999fc18523d39aed361f0da2105ac09cdd1af85291724. Chain 2 (Bitcoin): anchored in block 953827 (2026-06-15T19:59:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/deaaed9f-45c1-4237-b2f9-245f40d0a118.json and https://artists.proofprofile.net/proofs/artist/deaaed9f-45c1-4237-b2f9-245f40d0a118.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Le Carnaval du Parnasse, Act I Scene 2: Récit. Sous l’habit d’un berger, c’est Apollon ! (Momus)
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 0xdcd74b0483a576c9dbc829955cdb86433e3b9baafcd468639ec806f96573ec56. 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/FXR522412217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69467cf17337cf2c7fed19c7edfdb6a0fd12c1c47ee4d04b9bed22268d96af48. 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/FXR522412201.
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 Carnaval du Parnasse, Prologue Scene 1: Ariette. Que ce beau jour promet d’heureux instants (Clarice)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd63090ee28187da19e892c612c0d93d6e286d5d0cfc5c43ecd9427b312ace8e9. 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/FXR522412202.
Le Carnaval du Parnasse, Prologue Scene 1: Prélude & Récit. Oiseaux, habitants de ces bois (Clarice)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9217b435e93d320d5274e51f695afc3bab7b35c2611326b76531359b77b1083. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/FXR522412203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71d2d8774de1fd022854f5c84c5f5ac01842a2c8c43930ca54be00125f311065. 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/GBAYC2101001.
Rameau: Achante et Céphise, Act 1: "Céphise !" (Achante, Céphise)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe44f75673dca8d08c2cb4a435c5cfeda7ba07aa7bfd081ca9d5960691ed1754a. 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/GBAYC2101003.
Rameau: Achante et Céphise, Act 1: "Par le pouvoir secret de cet anneau magique" (Zirphile, Achante, Céphise)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x254d3e4d2435833271b5d180d8b625b130ee3377a8b1a1ecff73e06d68e41cbf. 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/GBAYC2101008.
Rameau: Achante et Céphise, Act 1: Air gracieux
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03fa293d267a9155b79638068f016f5a85d173f3724254ba4756a3627d151617. 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/GBAYC2101009.
Rameau: Achante et Céphise, Act 1: Loure
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa917258ea4f3712ac44d1d83e642832ef4c856f65526416f81af7dd6b69de52. 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/GBAYC2101017.
Rameau: Achante et Céphise, Act 1: Ritournelle
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf45ad61fb38addda1bf5f822e808966f6a05ad21e6a82d99462ec2908ed6bd93. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/GBAYC2101002.
Rameau: Achante et Céphise, Act 1: "Quel espoir peut nous consoler ?" (Zirphile, Céphise)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9e9704809fc815375b8b1409ea64c7cd006908b340b9cdeb309c199232be79b. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/GBAYC2101005.
Rameau: Achante et Céphise, Act 1: "Des dieux la sagesse profonde" (Zirphile, Choeur)
Les Chantres du Centre de Musique Baroque de Versailles
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x268c58c1212070ad4868d00330d2a03a2f17f7191aeb9eeefa2c8b5491f3dd3d. 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/GBAYC2101006.
Rameau: Achante et Céphise, Act 1: "Que la sympathie a d'attraits !" (Une Fée)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a7dc3c39fd386b050cae2e28b174854598f2a7753b632570f479d1be5fba4b1. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/GBAYC2101010.
Per l'Orchestra di Dresda, Vol.1 Ouverture
Il serpente di bronzo, ZWV 61: Potrei sovra degli empi (Dio)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4b83b3a643889afe5b54619e0348c05c22d486f4fa62fc9595994c3c1defb14. 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/FROV62125802.
Festin royal du mariage du Comte d'Artois
Mondonville: Le Carnaval du Parnasse: Ouverture
Mendelssohn: Symphony No. 5 in D Minor, Op. 107, MWV N 15 "Reformation": IIIb. Recitativo
Mendelssohn: Symphony No. 4 in A Major, Op. 90, MWV N 16 "Italian": IV. Saltarello (Allegro di molto)
Telemann: Concerto for violin in D Major, TDW 53:D5: II. Adagio