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 0x91b9449c0948f03334eed8c4f9b4641cc9cba69c312a07cce2d01c2efe2bb774. 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/638bd956-1c38-40bd-835a-ec8398ffb154.json and https://artists.proofprofile.net/proofs/artist/638bd956-1c38-40bd-835a-ec8398ffb154.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 0x3284eccdf16c58029d067134ba6185a1eac621698a09991bc0ca7c56add0b209. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T21:09:36Z), 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/ITI029800090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20523140bc17216ac0adb522e224924bb888019c3390642391bcfac81eb71a66. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/ITI029800084.
The Message from a Soul Sister (featuring Vicki Anderson)(feat. Vicki Anderson)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20523140bc17216ac0adb522e224924bb888019c3390642391bcfac81eb71a66. 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/ITI029800084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6acf2c8d6af794e1fff346427ad7e19e62f99dfffaf221ea66eeb67444762be2. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/ITI029800085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b55d67c9a7ebaa9a0067361c15aa03e338146608491f949d55f634b74aa9939. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/ITI029800087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31b88df41bb40aa3a60ada38c8c1d40dde37a337d184201f0a3add4c1868ce83. 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/ITI029800088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb447666bc34b06aff83a0baee908285f2632372b52b4f52ecfbe13a3bc93b576. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/ITI029800089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb09c333fe6d5e15c3b1f6ec37575545e69803c19429831154aca808c8aa0e855. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/ITI029800094.
Home Is Were the Hatred Is - Progetto Tribale Soul Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94e62159f2f8d00eb2bd447f5ec912a8c67ed068e40829d85fbe9f2df55afcfe. 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/ITI029800095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cba33697f98ee773ff584cbe355edd3ded06e6f3e5def5521ff127247f63398. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/ITI029900030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x544d40d42d86d9e40afc7bcdc19f2e0176d6259a76913d6632b9ed836535ccfa. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T15:07:00Z), 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/ITI029900034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e8f87e9cc6e94e9a517902f7a37aa2d0bfc0bb850b727cb967f1a86c5190b96. 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/ITI020100344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52cad6fffbe037055ec91841a475e038f89e4973eb75c1922d30b3a782a1ce1a. 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/ITI029800575.
50 Italian Standards (Le più belle canzoni italiane in versione chillout)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52cad6fffbe037055ec91841a475e038f89e4973eb75c1922d30b3a782a1ce1a. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/ITI029800575.
Passion Lounge, Vol. 2 - Emotional & Sensual Grooves (Compiled by Henri Kohn)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfff970e0005b887b6f89bca37d1d414f40156aa61deddcc6d83df80481d103a8. 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/ITI020600028.
L'aperitivo italiano parfum (29 Classics Tunes from the past reviseted for your ultimate lounge experience)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfff970e0005b887b6f89bca37d1d414f40156aa61deddcc6d83df80481d103a8. 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/ITI020600028.
Acid Jazz Brazil (Nu Jazz, Funk & Soul with a Brazilian Flavour)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6acf2c8d6af794e1fff346427ad7e19e62f99dfffaf221ea66eeb67444762be2. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/ITI029800085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddd61379f8a974ad2b7c8a8be0c48ac28eea8d53315fa497d187be365902e587. Chain 2 (Bitcoin): anchored in block 960185 (2026-07-30T01:32:48Z), 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/ITI029900170.
Il caffè italiano: Bologna (Italian Lounge Espresso Music)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cba33697f98ee773ff584cbe355edd3ded06e6f3e5def5521ff127247f63398. 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/ITI029900030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cb3640683bf3ec25bde8dbab94cb882ba0c2f6d8260c4f3421064bea2a6deae. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/ITI020500077.
Jazz Funk Instrumentals Vol. 2 (Funky Soul Jazzy Instrumental Acid Tracks)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb09c333fe6d5e15c3b1f6ec37575545e69803c19429831154aca808c8aa0e855. 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/ITI029800094.
Italia 70 In Lounge (Italian Songs From The 70's In A Modern Lounge Treatment)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52cad6fffbe037055ec91841a475e038f89e4973eb75c1922d30b3a782a1ce1a. 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/ITI029800575.