Javier Molina Casillas (born January 2, 1990) is an American professional boxer. As an amateur, he won the 2007 U.S. National Championships at the age of 17 and represented the United States the follo
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 0x0e8bf16afb636b9d2784c99b427ae6f7360b2756b0a8ddd3b7ceb09f9aed4549. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c9b81de4-d68c-4474-a090-049d3533b86c.json and https://artists.proofprofile.net/proofs/artist/c9b81de4-d68c-4474-a090-049d3533b86c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Cowboy Cumbia (20th Anniversary Edition)
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 0x2db86ea680ddfa777c29853042eaff7dee5395ae8c646597a72db1b6875d57a4. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZ29V1700001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11e49a08fd82e95e97e162140be8f4e8636204356d33e8017ff31ad2599c52fc. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZ29V1700003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda5b2ac29d730d0955f2be90da49962487f74f9cafc4b9d6357d33ef9ded7958. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZ29V1700004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7453ddef95695171885ae14a150669b51f0e0747d80fb8e540ed5dac632f2ec1. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZ29V1700006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47583d3be76e850202c3b4311a0f70b10baccdeb94551d9cc3518347a93c6879. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/QZ29V1700007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce740f3b9b2ba30012ba40817e1652893748f34e73acc5b3274e1955e16593bb. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZ29V1700013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6ebc3ca95c540ce1c2f82877c0f630d6eb61ae7ab07fdc7a1ee8dfd7d3cdac0. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/QZ29V1700014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85eb89510a56d6c5fffb66bf3b9e5307a03898222d066ae630af2752418ceb4d. 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/QZ29V1700015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7312d97b2887c646084afa9c8874cade53dfb0d19d3955193fee777a1caed104. 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/QMSAV1103351.