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 0x658e87f42400e9d77ba3956c2301e8c2f2d5c20f742b3c0345b179c6eb4dc6e2. 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/6c45d633-8679-4510-8b9f-e8f7dd243f2d.json and https://artists.proofprofile.net/proofs/artist/6c45d633-8679-4510-8b9f-e8f7dd243f2d.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 0xdf2e15df4c1c29219ce4e6d5db0cccce9746c8d9965716642010a47cde38760a. 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/GBJAJ2400253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb64a3a7a120772afb924a9dd8eb657f74373c8133afc1ad1a364c27954eafef. 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/GBJAJ2400252.
Where Do We Go From Here - Hugo Cantarra Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a1ac9da3f4e0589877fad1853ec4f3b9fb0980f3fa417756434a2789d3a2091. 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/GBEWA2304003.
Where Do We Go From Here (ABGT543) - Hugo Cantarra Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe1b6f4db868860b7daaf5a0bdca30e36ec2489bd4caea47bbaee9cb06f3af7b. 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/GBEWA2304551.
Look into My Eyes - HUGEL & Hugo Cantarra Remix
Look into My Eyes (HUGEL & Hugo Cantarra Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b841358b52bb6a296554aefc7fa75721bbbae198c8ac029d24b6461447107ab. 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/NLF712009115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b841358b52bb6a296554aefc7fa75721bbbae198c8ac029d24b6461447107ab. 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/NLF712009115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20a3bdcdb86c9f97b97180f73f1eccee2351d77a5f81180ba5c2388369775691. 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/QZFPL2100212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5214e15922f8d6c73ceea549d28c530be138f1ad34ec1b7af1fd9d461b70abcd. 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/QZFPL2100125.
Where Do We Go From Here (Tritonia 444) - Hugo Cantarra Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0379274ce5316d6ae13e101ceaaefe93acdeec554e8738d28b18ac1161567558. 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/GBKQU2383353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3096785b011d044e320ef6065aeb32b9f72051fb57140b84e835c7196d8ad760. 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/GBKQU2319395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd250da326dd0abae1182b9c68ce2edb4235f3b7b1669ee08611ecbef741aece5. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/ZZOPM2107521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93ea4a4cd1d9acec7395ad6612094771dd4651b035edd726bcc752213d1b8a79. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T07:19:23Z), 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/GBLV62110751.
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 0x11b14ffde6bc158b5ad72df11b701ce4bafbd0bc9af2e72b0f706c0587b203b5. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T21:06:25Z), 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/GBLV62110750.
Remember (feat. Stevie Appleton) - Hugo Cantarra Remix
Remember (feat. Stevie Appleton) [Remixes]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4f091a94647a308380f74afaed3f2adc2dcbe248d4113adefb877813cf0a065. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/US39N2203460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb3af9d6d322e04ca9aeaae4e2b4f54de24839ae8002882b2ff6cb5ba630d19c. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), 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/GBKQU2319396.