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 0x1c14dda4d390de1c381e50d97697bb6bc6fc291a39f09b08644a432cbd943744. 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/47f20908-3512-4b7a-9817-7ff870a40dda.json and https://artists.proofprofile.net/proofs/artist/47f20908-3512-4b7a-9817-7ff870a40dda.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 0xb1b894e72cc790cfba19e49365e1d8ed4e04978f62180219a05b3e6fb630938a. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/FRX202043406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x280059eb308cd4911a71b03a218377d49597ed98eaa4c8e44f5fc405c8c8c3f6. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DEK021699017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1eada490b1b3d34058af4e871b6ea446461ccd43117c823f213b6879936eeb89. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/DEBL61475035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4371f57e54ca1ed8230a2861cf94c8d90538951d5e0d7ee9624b1c2a3f60931. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/DEBL61475036.
Sensual Lounge 2 (Deluxe Lounge Musique)
Dimitri (Lounge and Chill Out Album Selection)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd57e23d1d79d135605344055eb5d3e9c33b079f0417bbada03e63572c7cd05a4. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/DEK021350114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3eb20b229352384c7555fc3ff76201838141383d3a05721d039b552a3fabe0f5. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/DEK021350127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b68bd57906a77ae209a5860660c12f6bc522ae055bd02ec7d24205e93c278e9. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/DEK021350126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49cafa5c2fb49688d114fdc97ef61c8382a1786bbd1a87c5bbddadd3132cfa25. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DEK021350119.
What If (Lounge and Chill Out Album Selection)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2ec90a0884c448620e38795827929948002a76aab7a39fb37955c851eead476. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/DEK021350038.
I Never Knew How Much I Loved U - Radio Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4b4277f9b8ea00be5ca8132deb9175188d49b54e60fc67449abd44972aeb234. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/DEK021350044.
Distinctive (Lounge and Chill Out Album Selection)
Don't Let Me Suffer (The Lounge & Chill Out Experience)
Sophie (The Lounge & Chill Out Experience)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd476747254279b10bd64f9e1d3f194225bd4909f1549e8f3b9cfe85569ab7627. 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/DEBL61273634.
Sensual Lounge (A Fabulous Lounge, Chill Out and Downbeat Selection)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a81de407ac0d7ed01a150a40bb06fc1a824e51961cc22dc618d4f2e327f4ad6. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/DEBL61273601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b60dee420ca539f5bc9c1b830aaec1fcadddc2b6df27db931897d0b9bbaaa22. 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/DEBL61273604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x215bd28b58352d5f6b9eca3daf016a18d6f556f45ba80392dc1f537aacaa3ba7. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/DEBL61273605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32791c876c133ce72905ee72b40e47f4024f54d1d55e61094c4f58f549445591. 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/DEBL61273606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cc855c1010a0e4202fad9e13dd486b3385e716336a0bec44cfc6f1dd7ef3fbf. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/DEBL61273608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f4794108e14c5c0b3ecc4c02be1f2f4fed1d2e8d0174867528616d454af7516. 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/DEBL61273609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb25b0a16a94b70ab9e611bb95ca277ca0abe992a1686762649bc689f75f86bd9. 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/DEBL61273610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x552ee01deb981802a25dedd567f08cba6327f2098b856b5a4c06a78f12072b39. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/DEBL61273611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cff5374be01e2acae9c043a90fa69ea99e8bc37929a2225aef9ea4d735103fb. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DEBL61273612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71a14366ba4b67f8ba71e58b78154be894d0a582c832371535c281077de618d2. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/DEBL61273614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72322151bcf4b790c587b5ed13c92a0f3039aa06d1b37e9c66ae6a22201ff60a. 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/DEBL61273615.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb75275be0f9603d2e79a64831e3136ac0c2ab44d439905b12645431a6f8fb51c. 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/DEBL61273617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52a82e0f661c4194dad1ca890799a21db5c12018ed1eb3f2a317f247d6e995a3. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/DEBL61273620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f6036b887bca333ee9f2802612f11b5c970a9d6caa22598f5b49179298d2317. 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/FRX762432077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97452d8a94fccc096b8a906da7d054a7ce28755b72ba8dcc7fef5b96f5c1dd83. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T10:38:52Z), 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/DEK022450045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacb0c79ae0f16334b0315884237d60a4c2c46006906fdcafe7b2d70126bf188c. 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/DEK022450046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe81d3773582c064db49904fb41255067dfba515343f146e2b5f99f5da24ba45d. Chain 2 (Bitcoin): anchored in block 959145 (2026-07-22T15:39:05Z), 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/DEK022450050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51aff38e8f6072852aa18f1002c64ce23637b976e4fa07120eb4d05feac427a4. 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/DEK022450053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45b8f642474af51959e41e08118401d27424023b0429907a413cbdb2dab324ea. 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/DEK022450049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaafce0527c99fa0635c05cdfaa113739efd9f494391187a82b20a35fd4509a9. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/FRX762217720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4c6d208b1bdd55764890c1bfd0d0e617d1d9eaf25f6468b971ec36317ee4776. 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/FRX762431269.