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 0xff9f0ee3242899225beb699b998f625f667d2e6a2d5c2cb79a2fdf479e6894b8. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a1043aa3-3832-4c35-8747-b225c1ddec4e.json and https://artists.proofprofile.net/proofs/artist/a1043aa3-3832-4c35-8747-b225c1ddec4e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0x30e6e0d7781dfaf09a614d65676d234399d5e95b3e4e24fe89c6560983053798. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/GBSMU6455510.
Backdrop for Mystical Sounds - Jazz Guitar Solo
Quartet Jazz - Background for Quiet Loungers
Quartet Jazz - Ambiance for The Relaxing Times
Soprano Sax Solo (Music for Mystical Sounds)
Smart Guitar Quartet - Bgm for Another Chill Evening
Music for Mellow Recliners (Acoustic Guitars)
Laid-back Ambiance for Calming Down Lounges
Subdued Music for A Mellow Memory - Acoustic Guitars
Sensational Organic Guitar Music - Ambiance for A Mellow Memory
Guitar Trio - Ambiance for Daylight Boosts
Lovely Music for Accepted Hope - Soprano Sax Solo
Music for Warm Memory - Sprightly Piano Bossa Nova Duo
Music for Reflection Sounds - Paradise Like Bossa Guitar Trio
Bossa Nova Piano Duo - Bgm for Discovering Room
Tenor Sax Solo - Music for Peaceful Smiles
Backdrop for Top Hours - Bossa Guitar Trio
Music for Creative Flashback - Soulful Piano Bossa Nova Duo
Music for Gold Winter - Tremendous Jazz Quartet
Backdrop for Delightful Time - Distinguished Jazz Quartet
Bari Sax Jazz - Background Music for Accepted Starts
Tenor Sax Jazz - Background for Morning Hours
Music for Accepted Starts - Jazz Quartet
Backdrop for Gold Winter - Inspiring Jazz Quartet
Bari Sax Jazz - Background Music for Sounds of Success
Number One Music for Morning Hours - Jazz Quartet
Bari Sax Jazz - Background Music for Gold Winter
Jazz Violin - Background for Upbeat Ways
Backdrop for Sunshine Intros - Retro Jazz Quintet
Bubbly Piano Bossa Duo - Background for Higher Illusions
Piano Bossa Duo - Background for Sure Visions
Music for Beautiful Illusions - Peaceful Jazz Quintet
Piano Bossanova Duo - Music for Golden Yesterday
Music for Perfect Energy - Outstanding Jazz Quintet
Alluring Background Music for On Cloud Nine
Quartet Jazz - Background for On Cloud Nine
Quartet Jazz - Ambiance for On Cloud Nine
Trio Jazz - Background Music for Morning Nocturnes
Music for Soft Memory (Jazz Organ and Guitar)
Music for No Stress December - Sumptuous Latin Music
Vibrant Music for No Stress December - Latin Music
Music for Soft Memory - Jazz Organ and Guitar
Backdrop for Misty Sunday - Fabulous Piano Duo
Music for Misty Sunday - Chilled Piano Duo
BINAURAL Waves of Comfort and RELAXATION Vol. 1
Study Music: Motivational Piano Song for Exams
Mindful Study Jazz: Lounge Vibes for Dedicated Learning
Tranquil Jazz Serenity: Relaxation Melodies for Soothing Moments
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b8d6487619ebfa25e5dc892a37cb6d8a2364f8eee2c2daba0ba324381a9ad2c. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/USLZJ2462816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14c42bce9c63fb9e5311a85a8ef77907b90f37aa377a9a9ff00d6dbf5128d14f. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T02:28:59Z), 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/USLZJ2462844.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc533ba78b88f4e8b857a0df99e63400a7c2177f1563b4c441cd5b20f5016476e. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/USLZJ2462863.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7e37d5333381d9783bd3480e20a889997fff16bcd75148ade31e6b08b193750. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/USLZJ2462882.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33d618391f9f77592037e2cababe74f9b126bb3fb9713c278f373c29a95dd9ab. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/GBPS85964422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x585ffcde513b95a6702d57aa68f2de6485e7d3d102234d751eaee892a0cc7772. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T11:41:42Z), 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/GBPS85280073.
Lounge Resonance: Jazz Vibes for Deep Study Sessions
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdab4e8941cd631661cbdb201035b19fe299c46ec9f3851baba9ba62f9944a639. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/QZWDD2326253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d6d6f986d68423a3b47115ceb003f039b8e9c54c06d3213d35c6fa026da8803. Chain 2 (Bitcoin): anchored in block 958371 (2026-07-17T05:45:43Z), 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/QZWDD2326255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6422f2d24c996be62f67de2ef84785b8b08607f35840dbec17a2aacfed09f485. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/QZWDD2326258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x003490a1a969c7cecd190335a5f35debe821d3444973c3c8c436b6561b6efaa7. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/QZWDD2326262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5af99e8a36dbb37daf293c984d57cbb5f0c88f5cbe475611e883a15f8f22b5d8. Chain 2 (Bitcoin): anchored in block 958825 (2026-07-20T04:55:29Z), 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/QZWDD2326264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81bbe96696aec00a7bb4009e367521c2dabc46c677e5cbeb2a42e6959183b33d. 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/QZWDD2326266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed22f236d5b8f66faa3165c867ddd96611cdb314195500c038a221f468e23bdb. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/QZWDD2326270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x707215e1f9ffea929df41109a97c668f065c11a7aa228d0a40e525e2354eddbc. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZWDD2326276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e40b88193d118de7f81c8a31e9005cbfd85e7618586ee042f62e2df4068faf0. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/QZWDD2326278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5a95afa6940bb4a54791f4a3539dceae2f07b3c134f3ba0aedccd29b377579d. 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/QZ5FN2480567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x417fed58709bd06c269c694b7f720d8fcca7b8adb34ae906e5c40c7765529d3a. 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/QZ5FN2480603.