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 0x05fe4887e5ece304e8a340fad98791a37d2d551c837a60164a1bc2a5553d59fe. Chain 2 (Bitcoin): anchored in block 953626 (2026-06-14T11:41:45Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1ec5b5ad-cbd6-494b-9c54-25357fb481fa.json and https://artists.proofprofile.net/proofs/artist/1ec5b5ad-cbd6-494b-9c54-25357fb481fa.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
I Dance Cuban Salsa 2014 (Salsa y Timba Hits)
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 0xe5adac904225b9d18a87b824435649753a5998d12a0396e61f84d61ada920113. 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/ITAC21400151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x288c0a6a4ddf933856f132c307fc7883ed3c4ee9c04667e8accd23f665c955e0. 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/ITAC21400154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bfa57d452d57974adbb59c752e950623d87c0a4e8184bf3035b89d505272f41. 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/ITAC21400155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06a3cf1d7920756fa7f8835cd7e8aa551ed1220f1a4de3a67187bc181e99ccd9. 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/ITAC21400160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaaf23312d090327ef19ffab8e10e0c4341c8bc193ad4f0eb208933028d40e81f. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/ITAC21400162.
Colección Cubanísima (Vol. 4 - Lo Mejor de la Timba Cubana)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f122c7e095b5fa97191e994301798084cc13f797c94270cf3301c57cb968430. 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/ESAAI0219299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1803e452f5413216ccda07f7e2d83e84c092864a9a930f55ab9023ed9c6e35a5. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/ESAAI0219310.
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 0x19d5e9c21f43054b3bfa73ea8b729359bdadd76fdfa8ae9caf5a81c967af443d. 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/ARF050700219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5e857ba72b56cedec5ba00713574d018fe6732ce40db1fdbcbaa35ea0db357b. 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/ARF050700220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ad8efbe9af5f968b9d7087cb81f2bc28a9b73cd33d25121ce45758746a1f461. 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/ARF050700222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbc868f723f3c09f48e54d30bf31d06debd5b4d27456abc67f2e7722c4f7cc74. 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/ARF050700223.
Relación Internacional (Qué Hablen De Más)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3ae8e091cf8b47d9158bba6e89eae5af447b4daa44e99577b10fc03d25875e6. 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/ARF050700224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d999c330b5878d004dfb543dbdffc8bc5d27fcf0f1674e2236fc57e1926cef4. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-16T23:59:50Z), 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/ARF050700225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac400ba311b961ae7662440d62764d5d48f67527bbd0c1ce743acace80c8dfcf. 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/ARF050700227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18f4d95e4b23f48e8ebe85d689c7b578558aca645c18ad46e5dfa02a525fae39. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/ARF050700218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8711f0267f4a6b139c1ea180d18171728130f5e6550ee65523732dcb32993975. 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/US4R30743159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c4c0f550afa9e5bd9d0be0aa8cd4b6d6c7ea0c7721f3a8a039ec6d2c41869e6. 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/QMFME1579324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5b1a3d84bbd575e70913b7defc2c19507d2e193f24770ddb8b653755a64806f. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QMFME1579331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4993bee5526d79bf588f05a509d2f8967c825327fe9d0c60a4181e1af17a3589. 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/QMFME1579333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99fc1fbb05446fea4bf13daba7fa8d4a9048fb7107361dfcf50d1755bf69e45c. 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/CUA021308582.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b5f2f8b0db792abe0cfdefb62131bed5ab0d8c71ec2012e6c749c11e8beae0a. 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/CUA021308588.
Bailables de Cuba, Vol. 1 (Charanga Forever)
Cubamania - The Undiscovered Cuba Series