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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6076446f9fefb680588305b0946273dc763f04715465deba9bc6588d507ebd8. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ff50f504-abe1-4b89-b88a-2b2d24066b8b.json and https://artists.proofprofile.net/proofs/artist/ff50f504-abe1-4b89-b88a-2b2d24066b8b.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2e664f6d72c5137ae14e872629b27adfdeea1aef4e943e2a1abd920e93bb2f8. 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/QMBZ92198443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x523c737804a2777e59c2f829da3b5fb8b1b6fe7cd7e522b44b29c25b09a726ad. 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/UKRPL1900322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f7a9d60b54d1cf85a913f96774349c440ea927ef678f09de228b913b9f243b7. 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/QZFYZ2028482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f7a9d60b54d1cf85a913f96774349c440ea927ef678f09de228b913b9f243b7. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZFYZ2028482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80bbbf5ac744ba785fac4c1ff144fa6c44985b32c2ba06bb79fa15fa99d6dd5b. 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/TCADJ1737619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa85f17fa5c182dbfaab5c8bfb7e5109c4adf815ada35db2c2bfe4d54178437a7. 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/GBSMU8851903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x002d00878671fddac92eeaa09dd7d9e331a62e3a4cf64f31a0c19392e3d284ac. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/DEUM71802213.
Figure You Out - Tom Ferry Remix / Extended Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x105c0692e7e280a8a76ecbc5e176a3197d49be821c8b44d35a8d0a7ec81d3037. 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/DEUM71802214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ef09f20aaaaa0a83969e9b42bd59328ee1069f8a6fd04149be7e174c5b75d45. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/DK4YA2273201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x082ef013ab80883916829575b6c6c114af88411f527c76aa30f63742d1f2c594. 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/DEE862300793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f06e0a3c7ed0dadc628b5f789af5d6f6f3978dffec965418481f8ef5a27d73b. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/DK4YA1913801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5d76bf9c34eeced7c2f3edf88b315e07c80aa0c2b6ae1bd84b8e13073d1a562. 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/GBLV62302596.
Waiting On You - MANÜKA & Tom Ferry Remix
Waiting On You (MANÜKA & Tom Ferry Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x129eb3c435d1e5d3a9ef7dbf6fb761256c5786334ec06e35b5c5241b108df8aa. 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/GBKQU2378042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76236832bf438f7aefbd8ba091aafc13762b5c1b1c11bed0dfa5c418170f8834. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/GBLV61925782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1da575c0f5ab2b1c3fa02c6088248e08fa2187b951abb6f7604f9992be5aad5. 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/GBKCF2000897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc03ab4814ebf9ac7ad0438944d8baa625077e63fbc112b3e6efe1cc935ef771c. 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/GBKCF2000898.