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 0x5867143f95525a3eb88fc4edbda53e9f916c4d155ffda713ec2d97acc1d00596. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7e51c5bb-5b58-4969-b753-fca94d854198.json and https://artists.proofprofile.net/proofs/artist/7e51c5bb-5b58-4969-b753-fca94d854198.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 0x3d024f74c56a8cc35b1c279013d4e36f761567e44b5252c133ea88a477e6785f. 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/ES7842028330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ce58fb86e70a3ba5db357021c6f91a450cfb0b254508896dc2cbe5f5e64f7f3. 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/ES7841224402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1964e4d2d10925c5f9e11f688f8bcc42933add459ec41b8529b87e797e531df. 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/ES7841224403.
Bedroom Grooves Ten Year Anniversary Classic Series: 10
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c8fdea3a8e7718e56fe90967aa3d2fb22bf58312b17e4eb77d77cb508955ba6. 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/USK9N1668526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0122d2fd971a31b23eda4b0ca611a295dff068585a39fe81e64aecb5703cf992. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/ES7842028321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d024f74c56a8cc35b1c279013d4e36f761567e44b5252c133ea88a477e6785f. 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/ES7842028330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0887e757208f6fafa2e8ceb9fd8960d38be5d977a605abd7411f3be36b7215a. 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/ES7842028301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x847ff1ab574859afa645a57542c4aa108381b98a8b59615cf22d6ab2d428d4e1. 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/ES7842028310.
Now or Never - Franky Rizardo Extended Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2773fa3d1bf1c0111e3ddecd2b172511d79539079293d415aaa76162293921ca. 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/ES7842028313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x422fb09378c3a08fb0ee5a548cec5ede14069e65e9ba4183e590a340b9d01681. 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/USNRS1331437.
Between Us feat. Velvet Voice - Sergio Fernandez Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6671cc7359ebf7877dc56ff83cb994b8edf1ce4b05651c99328387c23c075f6. 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/USNRS1331438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x695a4cd3f89b525aa8888d6e5329eb88d5fd10595714c72db8ef4c6582a9f6c7. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/USNRS1331451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff62b4c8b77f47024dad77dc677d34041314d6e7db80683aa22d90d668ddc9a4. 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/ES7842028231.
Everything Changes - Da Le (Havana), Different Age Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x745a9b7c7e3ec13b491be4009aac15a149456ff71fb325e41ad9b0e24db571e9. 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/ES7842029321.
Between Us feat. Velvet Voice - Original Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12e73837cfd9b051c1631313c78de3be0f9ad1824c8d5ee69cdb508ca1881fbb. Chain 2 (Bitcoin): anchored in block 960225 (2026-07-30T08:04:30Z), 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/USNRS1230350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb442ee8dc010a1f529332a7cc1caacfe7448182943bfc9984e498c0e4024d973. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/USNRS1230349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2abcda31f7af333d856b9b98d801f1f7ee9eb6c0ca3d212498b9c070c971a89. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/ITNYQ1800070.
Deep & Technoid: Underground House Music, Vol. 6
Organica (A Quality Collection of Modern Tech-House Tunes)
RAVERS - Impervious To The Logics Of Mass