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 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 0x5f39244e4af05d4c1f6c07176f42f440d2cb2a8cabf53dd9521fc013dbe5ac0c. Chain 2 (Bitcoin): anchored in block 953817 (2026-06-15T18:10:31Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fe2c66e5-41a3-4928-8256-dddfb9488d72.json and https://artists.proofprofile.net/proofs/artist/fe2c66e5-41a3-4928-8256-dddfb9488d72.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Studiare e Memorizzare - Musica per Sessioni di Studio, Suoni Rilassanti per Memorizzazione Rapida e Mantenere la Concentrazione
Natural Healing - Musica Meditativa per Studiare Dolci Sogni Tecniche di Meditazione per Gestire lo Stress con Suoni della Natura Strumentali Rilassanti
18 Canzoni per Studiare Meno Studiare Meglio
Studiare 18 - Imparare a Studiare Rilassati, Musica Rilassante per la Concentrazione, Tecniche di studio, Prendere Appunti, Creare Schemi e Mappe
Università 2018 - Musica Zen con Suoni della Natura per Trovare la Concentrazione Giusta per Studiare con Calma
Musica per Studiare 2019 - Canzoni Jazz Rilassanti per Anno Scolastico '19
Musica per studiare e memorizzare: Musica rilassante motivazionale per ed aumentare la concentrazione
Musica per studiare e memorizzare: Suoni binaurali per studiare e potenziare la memoria
Musica rilassante per studiare: Aumentare la concentrazione, fare i compiti a casa, musica per pianoforte, suoni della natura
Musica rilassante per lavorare al pc: smartworking, telelavoro, musiche New Age per concentrarsi meglio, evitare le distrazioni
Musica di sottofondo per video - musica strumentale New Age di rilassamento
Studiando Melodico (Musica di Sottofondo)
Concentrazione e serenità - musica per meditare, rilassarsi, studiare, fare i compiti, leggere
Musica rilassante per fare i compiti: musica per studiare aumentare la concentrazione e l'apprendimento
Musica rilassante per studiare matematica
Studio 2021: Musica per studiare e concentrarsi meglio e memorizzare, musica adatta per studiare storia, matematica, italiano
Concentrazione e focus - Musica rilassante per studiare meglio in meno tempo
Musica rilassante per fare i compiti di matematica
Concentrazione e memoria studio - Musiche rilassanti di pianoforte con onde alfa binaurali
Musica Rilassante per Studiare Velocemente
Music for Mental Exercises - Trumpet and Alto Sax
Cheerful Music for Staying Fresh - Trumpet and Alto Sax
Music for Eating Well - Atmospheric Jazz Ballad
Thrilling Jazz Trio - Ambiance for Staying Well
Music for Chill Day (Trumpet and Alto Sax)
Backdrop for Fresh Gourmet - Jazz Ballad
Hip Latin Big Band - Ambiance for April Strength
Understated Music for Afternoon Downtime - Sax Jazz
Backdrop for Wonderful Tonight - Suave Soprano Sax Solo
Fiery Quartet Jazz - Ambiance for Romantic Notes
Successful Music for Daydreaming Hotels - Soprano Sax Solo
Quartet Jazz - Background for Fun Traveling
Vintage Music for Fun Memories - Trumpet Jazz
Inspired Jazz Violin - Background for Virtual Relaxation
Backdrop for Virtual Relaxation - Jazz Quintet
Jazz Piano Duo - Ambiance for Random Studying
Magical Jazz Piano Duo - Ambiance for Private Access
Music for Connected Flashbacks - Awesome Piano Duo
Piano Bossa Duo - Background for Chill Out Reflections
Sensational Background for Comforting Reflections
Musica rilassante per concentrarsi a fare i compiti
Musica rilassante per fare i compiti 2023
Musica Per Studiare (essere ispirato da marimba)
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 0x1b412b9380d82e243c5b8fb255b5badf92e19f853c2d8bdb18c773d9dc972f95. 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/DETL61410283.
Sonata al chiaro di luna - versione marimba
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcae8813de3acd960580a76dce41735ea94a6b20ce7881190c82ced434acc011e. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/DETL61410298.
Studiando: Musica per Concentrazione Assoluta nei Momenti di Studio
Flusso di Studio: Colonne Sonore per Una Sessione di Apprendimento Massima
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4065f3c9a83ebc53c4da21b6574eedaef9dbdcddace145bdbd1d21da2c6f6c50. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/DEAR42549911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc91d1d856a8221ad4e19570b46d0f9ba402b7b87964bcab4e9ba1f4b202ddf4e. Chain 2 (Bitcoin): anchored in block 959132 (2026-07-22T13:20:46Z), 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/DEAR42550013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd734e33de47275e1cb0924610792b7c120b15fe5d4288b98e5585b75482d9a2e. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/DEAR42549727.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65ecc811736641f9267ab41820809b98a059ebeccd64f1119c43c6edbf9e7ae7. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/DEPI82550532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25823a4b848e69180cbed58e9136e11c6bc6145ee45a45d570dffc892502e329. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/DEPI82550533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56a35a4cad03a5885b88ae56d73cf1822da111b696cbff1328cda6ec7f81d300. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T14:03:35Z), 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/DEPI82550534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc88d752173786d57e064ffcb38ef26467fa903117d7281815a5ed89952b8943a. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T07:19:23Z), 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/DEPI82550535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b0a66ecc5e70f8dec66e2f0fe0682f4b15be61f45d472404f81bee7b08dd8ce. Chain 2 (Bitcoin): anchored in block 959091 (2026-07-22T02:33:54Z), 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/DEPI82550536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58c43379d2283f230512b3729d450d014175ff42da251574174de6577a15694c. 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/DEPI82550537.
Foco Profundo: Música Instrumental para Estudar
Piano Classico (Musica Classica per Bambini) - Musica Rilassante, Piano Emozionale
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x672572b7c22d9776e56be4c970bb1a2762c2d283b3f2bff1e17a5855758862d0. 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/ITLU51708735.