Jaco may refer to: Places Jaco Island, island of East Timor Jacó, Costa Rica, a town in Western Costa Rica Jaco, West Virginia Animals Jaco is the local name for the Dominican endemic red-necked am
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 0xa9bd87ce4edf765adebeab0daeeacf781db462d9f079b2ca5b4ce0893386b250. 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/270bc4f0-6d9b-4007-9880-74be29876643.json and https://artists.proofprofile.net/proofs/artist/270bc4f0-6d9b-4007-9880-74be29876643.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 0x86b0a77ca999ccf61a093969e5a205fd3ae3136a21b243457cc59c27cf62b965. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/GBBPW9200059.
Uncertainty - Lukas Termena's Balearic Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe156a86d275054b36dd10f464379ae6a30f734395253c8de812f943ca6074461. 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/GBKQU1379953.
Show Some Love - Rhythm Invention Remix [Mixed]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc220410d46de0f51a47956eadf8ec7140c495d381ce5b1b31ace47392135f135. 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/DEG932302855.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6010d45a1970a8447a0e4885b4bd8b4ea6d7742fc0bfa862adf7dfefbf12d9b6. 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/QZ4JJ1738179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe570116ac739909087f7672c4e196c1959bec34268df6dcafb5cabb2e244837b. 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/QZHN41937477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12c7ddef8e10cd5e3b035ed57bad8e42ffc8c0809a50c1d4034c7a5617a2ef17. 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/QZHN41937478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d80d859ea8ac1f627d6b6baacd25860acd300ce54085b8c07cf47173d5d81d3. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/QZHN41937479.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe960c8294b483ffa18abc98af2a4fb24649c11e8ee449a6072deee33a632ab0a. 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/QZHN41937492.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb24f82acd4aa2792deff0c56d6c7203ee6d071b7924b660f75510a14bfbc0e6c. 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/QZHN41937494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a5262e664e2547f3e03a7ab0246ec8292ca8a5b0a738234d23e77d10d77a00e. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:34:41Z), 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/QZHN41937491.
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 0x5bf194752df8a8f34e0b39a75a1bae883215a65c81e1b401a3226a13d588ba17. Chain 2 (Bitcoin): anchored in block 960173 (2026-07-30T00:11:40Z), 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/GBBPW9200061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0510f57205a9a044e31dfdecd0e5c4fa69a8b876939e8691abddfc4b55f3a06f. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/QZHN41937480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe9fec58438676983f75101676792fe451b0f71f4150d660b9588ec8f3d95bfe. Chain 2 (Bitcoin): anchored in block 960222 (2026-07-30T07:48:45Z), 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/QZHN41937483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a0bd5d3e18f8a76b980f06ba66ff4e4227075a18a4aff26cd04dbfdff48bc02. Chain 2 (Bitcoin): anchored in block 960111 (2026-07-29T13:21:01Z), 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/QZHN41937488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d88d08fc0b3b461d9f010b6a63099f56513df105580c10a7a3b0305ec7ec1b8. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/QZHN41937490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe53309434e337feb1f7d17b90dfc509b1b04a60998804ad965d8027646c878f0. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/QZHN41937493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1905306a1febcdd14a27c8d726b9482b5fd136903c8162cddb2724af0db0fd9c. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/PLB382200274.