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 0xad02db9559d60cc13de5c3196a0578d31813f169f59f456f9ec2274cf8d55bcf. Chain 2 (Bitcoin): anchored in block 953648 (2026-06-14T15:20:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/44bead35-5e5a-41e4-aa81-7d96add4e5ae.json and https://artists.proofprofile.net/proofs/artist/44bead35-5e5a-41e4-aa81-7d96add4e5ae.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Jazz de soleil: Côte d'Azur – La musique de fond pour bar, Restaurant, Café au bord de la mer, Vacances relaxation, La plage, Bain de soleil, L'été en plein forme
Jazz équipe (Nouvelle Orléans musique: Une musique qui se joue dans la rue, Escapade musicale, Musique louisiane, Cool jazz)
Guitare acoustique et électrique pour détente 87 min (Belle musique intrumentale pour la relaxation, Écoute facile)
Jazz d'été (Une ambiance de vacances jazz, dîner romantique pour deux, soirée sur la plage, bossa par la mer)
Jazz pour un Voyage de Vacances. Écoutez de la Musique sur la Plage. Joie, Bonheur, Temps Libre
Belle Musique Jazz aux Beaux Jours. Sons Joyeux pour l’Été et les Vacances. Joie et Bonheur
Garden - Party Jazz. Musique Parfaite pour Votre Rencontre avec des Amis. Vibes d'Été
Vacances Détente Jazz. Fond Musical lors de Réunions, Fêtes et Passer du Temps Libre
Jazz pour les Vacances. Musique pour l'Été. Temps d'Événements, Voyages, Rencontres entre Amis
Jazz: Musique Intéressante pour les Vacances. Réunions, Êvénements, Voyages d'Êté
Musique de Jazz d'Été. Fête, Réunions avec des Amis, Sons Relaxants, Événements de la Vie Nocturne
Voyage romantique à Paris – Musique jazz pour un moment agréable
Vacances d'hiver avec musique jazz. Loisirs actifs, Temps libre, Rencontrer des amis, S'amuser
Massage relaxant. Musique jazz détendue en arrière plan, Bonne ambiance
Top 15 des chansons de jazz de Pâques 2021: Jazz de saint Pâques, Musique jazz dimanche de Pâques, Fête de famille de Pâques, Fond de Pâques
Passez du temps romantique avec de la musique jazz agréable: Belle journée à Paris
Prenez un bain de jazz: Soins de beauté et spa d'avril, Fond de jazz instrumental léger pour le massage
L'heure du café à Londres: La semaine de dégustation de vins à Londres, Musique jazz détente, Bar de écoute facile et vintage à queue
Jazz Vert 2021: (Green Jazz 2021), Musique jazz moelleux lisse pour passer au vert, Chill out saxophone jazz musique
Deux tasses de américano: Musique jazz des années 1940, Jazz pour vol long-courrier, Pause de travail, Rétro jazz d'automne, L'automne à New York, Café confortable
Cuisinez avec moi: Musique de fond jazz pour un délicieux dîner français
Café de Venise Jazz: Musique d'ambiance italienne
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 0x3ed0a0d72e55d99b1f108d3d17af68cc2234a96ff73571841cdcf74b19ef679d. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/UKR4Q1947111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4536c6d1348f520c53ff05c1ecec7cebddb3295ce8d2aa2c9d3ec114b640d8e5. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/UKR4Q1947112.
Petit-déjeuner swing du dimanche d'hiver: Jazz relaxant pour un café d'hiver
Ambiance Dixie: Joyeux Action de Grâce Jour 2021!
Ville romantique et musique jazz: Souvenirs de Paris avec vous
Ambiance de vacances d'été: Jazz de charme
Musique romantique nocturne: Musique de fond émotionnelle au piano
Café Nocturne à Paris: Jazz sous les Étoiles, Rythmes Rétro, Atmosphère Romantique, Douces Mélodies
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd909f6f794bbdac43e3066313a6c3187568d59d14a13d152cb48d37596ae506a. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/IEWWH2414685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x379eb0841cfcbb26dccd85122a38f055b026385a6d2c2ed995ff132611a9d2c3. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/IEWWH2414687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x106790f1460ca62fe65b51280d53893b45ff2bd581c67b715136e1df14720fe6. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/IEWWH2414689.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf66ca088902ef53bb262cbff9abe722ab0812c2d770605321bcb97e6a1fae388. Chain 2 (Bitcoin): anchored in block 958567 (2026-07-18T15:22:40Z), 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/IEWWH2414690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5b47676e81d5ec8d0a79caae9dacbe138d461e82f1d81d1f37504bf346feb89. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/IEWWH2414691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67d02e5de0e76b4b391cd6e737e3b64a2da28242898d0e5d1655253ee9ad3f03. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/IEWWH2414692.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63c710b3db0f80a1b7e980c687a3e25bb0cd8af5ef9817794951e22925f2c2d0. Chain 2 (Bitcoin): anchored in block 958667 (2026-07-19T05:04:54Z), 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/IEWWH2414693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb9769b9b4c31a2a3746a2147e9d2746c3b717df624f86768420d9a4b318f0d4. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/IEWWH2414694.