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 0x2dd1555e2f4a757e247bc92bdb2ac93fb64883b91efb6c696f4e4757150309e2. 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/ff09ddb0-748a-43be-9f74-4e3fd20f924c.json and https://artists.proofprofile.net/proofs/artist/ff09ddb0-748a-43be-9f74-4e3fd20f924c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Musique chill pour travailler - Musique électronique douce pour travailler, concentrer, étudier
Musique Joyeuse et Positive - Chansons pour travailler et se concentrer au bureau
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 0x6d4d19b6111e57bd899107bedfbfa2cc8760ace7a3a15759506407a6bf85af24. Chain 2 (Bitcoin): anchored in block 958526 (2026-07-18T09:09:53Z), 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/ITLU51882013.
Collection travail à distance: Chansons pour travailler bien à maison
Piano relaxante 2020: Ambiance au travail, piano pour apprendre et étudier
Musique relaxante pour travailler et étudier
Musique Relaxante pour Pratiquer le Yoga: Détente Corporelle et Spirituelle, Méditation Zen et Bien-être
Détente Bain Doux: Musique Apaisante pour Moments de Calme
Chansons Douces pour la Grossesse: Musique Apaisante pour Maman et Bébé
Évasion Zen: Musique de Détente pour Soulager le Stress
Relaxation Sublime: Musique Nouvel Âge pour Détente Profonde et Sommeil Paisible
Musique Zen: Voyage de Méditation et Relaxation Profonde
Relaxation Profonde: Musique Zen pour Méditation et Sommeil Paisible
Pratique de Yoga: Musique Relaxante et Paisible pour Méditation
Musique Zen: pour l'Apaisement Profond et la Détente Totale
Rêves Lucides et Sommeil REM: Révolution Subconsciente
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84bcbbdba35ce562602ae142843edc01e33f7f1a8848a16413dda21caace7a82. 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/ESA122437353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa30218967540a24db234235a442f9ddb86a3b4275e721cc5a05016bc4ec78071. 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/ESA122437355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26ef30b57308ae8e4b752cc31d78eb3f5467c5421ba1a65d5578e70c29dc1328. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/ESA122486516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dd641ed574513249959f01ed39c65575427cfa08046de8b2fdf1e5c7d074b16. 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/ESA122486517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf6e853970fcfbff4f0c8d3253e0b0294aa5db6dcf4901a97315f1024fd65bc6. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/ESA122486518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4076ff45ced6bd8c4e06311072520184814982f73b23d22748c0b3134889371. 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/ESA122486519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc8f5cebef16e474691a0093769acc18897585c3890a5e707b0f4b5dbe699142. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/ESA122486514.
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a390a61e98b4464b2e49623b4d19c588bbbd91c4ad6671e97a682ed720f13ce. 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/ESA122486510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dc2978d99fc5fb5293c818b47210b33cde3250e446ba1c27661ecbfda48549d. 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/ESA122486511.
Les Contes que Nous Chérissions Doucement
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c108c52ae593be643d2042a7947e4534960d85d47ca677113380c46b28714b9. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/ESA122486507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a2a7684c585221f38e284c7eb665150be312356fea3a410ff5e76e2ef21e3ce. 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/ESA122486508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a8ebd9aaff694278ee8efbbd940b78ac66a7bb101cbeaf3f6fb3008cd638192. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/ESA122486512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x522376d150034d6293df005f424e14f8d09c6c047546dd3398c432c395376558. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/ESA122486513.