Los Panchos, originally known as Trio Los Panchos, are a trío romántico formed in New York City in 1944 by Mexican musicians Alfredo Gil and Chucho Navarro, and Puerto Rican musician Hernando Avilés.
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 0xba412f69e6077cc3f208239541ad55427410afbf3e60184e4c0daa992f8d2012. 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/9fb36db3-8814-4567-b839-919c395cdfb8.json and https://artists.proofprofile.net/proofs/artist/9fb36db3-8814-4567-b839-919c395cdfb8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Coleccion de Oro: Exitos de la Epoca de Oro de Los Panchos
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 0x01350c03b81ed46c87503f89cee338eb881dc35abdc1bee7d013101768eb676f. 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/MXF330911080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3bc98f05c8925454313fd1c42be1b8e039a38120cb59a32cb8eb136ff6f040a. 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/MXF330911081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30669c2803469e06c27e54669235d1ccf721b16fb8ae8e895e421c8a7b70de3e. 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/MXF330911082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fd53e00be10cf3e5c0e0cef91d4a9fa6cd1daacba10d17632e9ade2f9fda5d2. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/MXF330911083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62dfee53464e8694c4285971b37e4635bccf31c0184a018d4d264288e55efd30. 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/MXF330911084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe143c0ff454a6cba000e78a25215d99ab7cbb689205550551620aa99d7c1d40d. 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/MXF330911085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7553a850b3c4ace56fe534bf7a74d985eeeba7f84b2162724819f6fb7734f902. 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/MXF330911086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x970b54b08293689b5a1f4deea5556f06338b894cb50dc54d13c2ba7883ab1756. 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/MXF330911087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ce82434484cba0c7e05e5a1d1051246a1577b7eee00828b66ef5756b36af6d1. 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/MXF330911088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x275f31d70f20c464bdb3f188acb59bac7d6366df794cf7039db0434503d3068c. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/MXF330911089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec782799748026e249207c7b5892e289b26ad44aec77ad24dc1b3ed29d18bb93. 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/MXF330911090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33241d6c1363889a9ef58fb382d6bf32f6928e077962393b7304f115dbe430b1. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/MXF330911091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11eef45f200d5f4c3232dba402974be33a0360511d79972351daaff8895d2196. 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/MXF330911092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8c377f4d3a547557ef9b87d58ae4c699c216166fdf92714217e1dd610b8ece8. 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/MXF330911093.