thumb|Louie Ramirez with Warren Chiasson (left) and Tito Puente (right). Louie Ramirez (February 24, 1938 – June 7, 1993) was an American boogaloo, salsa and latin jazz percussionist, vibraphonist, ba
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 0xf69b77cd9bd17ad4bc179b7ce4888d445ab41314bf2f13998f7e4e75a67e37a7. 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/84ce949f-8b64-46f2-9f42-0a3d1b201073.json and https://artists.proofprofile.net/proofs/artist/84ce949f-8b64-46f2-9f42-0a3d1b201073.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 0x79db9184d16852a2a8306e95da59a7500a7eaa8d257856d9e24c57b07b0b8a22. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/US3Z41500807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc50f769ff94d3637b3fa7ba9e31f036cd1e33335cf16a77eb271aa5460320768. Chain 2 (Bitcoin): anchored in block 959065 (2026-07-22T00:33:17Z), 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/USDBB0600152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd49a354d47a5a032d4d49af45aa1e1346041373ff3df43ab020659514418eb9c. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/USDBB0600154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa82dea60e2bd649f2463d7000643df974fcd539875074be2ba05ad700379a22d. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/USDBB0600156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32c80513616e829ca53c66c3a6c9b38d060b4227470f135906a53f6f62e257e7. Chain 2 (Bitcoin): anchored in block 958682 (2026-07-19T06:17:12Z), 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/US78T0502260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ec37ebd64d05b495bcdb3404593d9a2ef075b1808b0e8765508f09cfa0d1d52. 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/US78T0502258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69e152d2f336425aab92c2137205027d880e02294db54392b295e11a9f593bb0. Chain 2 (Bitcoin): anchored in block 957620 (2026-07-11T22:32:56Z), 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/USDBB0607368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15b6eafccc3899f7d91baec4c1f8572e2fc34021a73ccd1f5a7aeb06041a5eaf. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T13:47:35Z), 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/USDBB0604828.
Louie Ramirez y Su Orquesta Canta Tito Alvarez
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8d7cb7ee08a41d21a21c70c5348505a5e25351612325789a35583d79720f2d0. 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/USUM70502217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80bc2529c3aa1379d60ee0ee4118d689a89f79094afbce8ce14127d6cd082eb0. 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/USUM70502218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd890a0ac284f90a34ff9d653a9bf0d6b6b2442eed84f36c32efce18de6bc8674. Chain 2 (Bitcoin): anchored in block 958506 (2026-07-18T06:14:51Z), 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/USUM70502219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90caa3eac55c78f0e1839e31f886c56e5a8eec5220d04716851eb5a8abecc693. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T07:17:29Z), 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/US78T0727220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50fda7de8f0541dc4c9ec3c25afc7dc1ab280f4a87a6b65a8608661ee0d93609. Chain 2 (Bitcoin): anchored in block 958963 (2026-07-21T04:02:02Z), 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/US78T0727225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7c284e19db2a437e8bb58795fde5edb5568217259e73e74b89d09bfa6858afe. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:02:47Z), 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/US78T0735607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe22dd13b3d48670b206c1864d8518ccf0935154d36149ce53238e5ab31b4dcf. Chain 2 (Bitcoin): anchored in block 959034 (2026-07-21T16:34:25Z), 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/QMFME1568175.