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 0xf00154f0662c23112b094d6c0f36a82024d79407c3fa76d419fde2f05570c4a6. 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/c46f38c4-7d2c-4065-b260-cfbaa7ec2a69.json and https://artists.proofprofile.net/proofs/artist/c46f38c4-7d2c-4065-b260-cfbaa7ec2a69.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Al Fondo Del Mar (feat. Dr. Shenka of P.Rococo)
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 0x040dbd4a72e3a3d6582c99ba1d6dbeaad7d6090e854061515159c5eb8708d2ba. 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/TCACH1502115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x029b49109f3844521f352c33a40aeebbe23520a1e2b2c13b701c28e42a447bd1. 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/TCACH1502125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a600c9ff7c0d6550583d6cfdea965fa4ef4534401ec897bf96cc25be26a608b. 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/TCACH1502132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8b75ae03fccaf1915a3a77dc82df4a0030718f243a03195ee1d5d40c81d2c3c. 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/TCACH1502134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98ea9231abf415ddfb0bfd19a1aa66fa8064e1ecee08a8b613909e99076fbab0. 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/TCACH1502143.
Voodoo Glow Skulls Tribute "Puro Desmadre"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64aba844d3e3fbd3adabb8f140be8372c6d0d6d7c55216387568a1565cce531b. 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/TCACS1644253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d1ef0dea05081a2b73b33edfa29fa55f3ec5821957187cf066bf87be48a1e8c. 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/TCACS1644267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x242fb2412d493526095093f7f04a1a44b3c3812082b5dc7c5bc767b31fff4434. 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/TCACS1644269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d9dc02504e5380aba2f991e0b918c9c0f3ecb0a7e0f1955bf1cab0228449a99. 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/TCACS1644286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe081e866e83ce708b2655b0f24706397048c858e70de4a93b85d53a8e62d9b3e. 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/TCACS1644288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c09a420aa9c063747a66780e515ddebdd2dcb08a7cab361cf170b651460ca0f. 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/USDHM1316093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bc396c069f67d0bb48674107a1fbad9d467bb7fca7357dc9a9f49732183b588. 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/USDHM1316094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0374210e93b44039408d00a33b4e76bd747b8b4ff9eb0f7b61b66165a6aee9d4. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/USDHM1316095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x830940b92585bea56b4413f88c3c9db8fcc1a596b3d1d4afceb8d3b7fb6ff3e9. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-16T23:53:58Z), 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/USDHM1316096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8497b5ab00e2ea84b1054348e0a376f56f32f8620cfa87ef78a84b8b3d2e346a. 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/USDHM1316097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18773bdecc6ec1185ea246ea4f9610a92c854a795664d9bf0c238ddd79a68133. 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/USDHM1316098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7b899332d310794569a40d5b16437c5e63fbc289a38af2fa8f037a015fb70a6. 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/TCAEG1946893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29960550d9481472e9bf83dc997410a8a9e6308b35a317433e1c4cb77f1a88d4. 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/TCAEG1946939.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39a0229d74d2d5652bd9cb38c6d3ffec11f628008291376728372f8e61b5da45. 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/TCAEG1946945.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xceb825a1d594b8a7f1b898fc00b8b8272266a8957f70377aeb314d38bf21f6e9. 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/TCAEG1946948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73220a6dbceb96e396b1827eb2b27234bbe3da1b0ce502de9b2c16d8f9a14401. 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/TCAEG1946950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb9428b2d26b464b4927766fe7db38065f49eda95f69bd7fa5cd967f3ce318e7. 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/TCAEG1946953.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b21e4a722570cd039b29ec3031640c7458aa95b0b5aa9a3296df410775e2c11. 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/TCAEG1946962.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ceb93768f59a93521eaaf2c26998817d9fef0a223432283995ca361a9da8cb2. 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/TCAEG1967964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc3d45b2c1862025df6d9200a174ad372a56d4370304a506d37ddc01320d51d6. 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/TCAEG1967480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b373002b577bb0852b22686a68e25113d6e981a50585303483cba9ec993e97a. 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/TCAEG1946973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac67d36526f4f907b8a66882f7aaa034218d928b842eddb1a4c7fa5bcb57cf40. 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/TCAEC1937603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4db4492cfd8f320b337d1f7034f62b2db6a5502195a9cfdc8dae58d375d2899. 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/TCADP1820971.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b78da6541091c809c8cd98f15f71e63b0095c5d706778ecaf3ad810fe765c97. 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/TCADP1820975.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd96acc67f0be1491c4c45a3fe6891cfeb653c6f5e117b0f5e130f514b190d842. 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/TCADP1820976.