Roberto Delgado & Orquesta is a Panamanian salsa orchestra based in Panama City. The band leader is Roberto Delgado. The band has released five studio albums and since the release of the album La Rosa
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 0xedac604b8c74566842c77ba7ef3c1ef31fbcac7ea782c0074cbcb850078edd85. 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/de43070f-2d71-4044-a989-8e063559e63e.json and https://artists.proofprofile.net/proofs/artist/de43070f-2d71-4044-a989-8e063559e63e.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
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 0x8c87b47cd2db9d103191c842ae1f123db1b4aab64ebba269798b1e26cc24067f. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM54E1500167 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae6a4742c45ee15a186250100afa6986fcf3c8b35ac900e51146dca3033be44f. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PAB022400001 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e789f6a3bc5ed093e78a83bd31a2ce80ecf5a027f2df5efa7ddd53b4a069c48. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PAB022400002 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cdd47e00def5ecc2916fdec97660d0b5e308c1f9381e77bea9a28d523b423d8. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PAB022400003 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4807e353dbe9c477da318442fbfd565d50d2595227220a75b2fbff7bf50f8d6. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PAB022400004 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x314d29012f210f93825a4158c192170f6116574d9e02d18fc67716e9979a6426. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PAB022400005 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19056f0c07dfb9a2028f5001fa3d8d1653e0a86bbcbd7f329b879e435c9f3e2b. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PAB022400006 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x541d2248bda57cc48bfedde367669959655774607ba043b70e69585ad7a9ecde. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PAB022400007 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39934395e9f7661207d9d11cfcf898189ba1d98500fffaba25c69f62ac841e97. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PAB022400008 — a six-check JSON result.
Plástico (En Vivo en el Coliseo de Puerto Rico, 14 de Mayo 2022)
Siembra: 45° Aniversario (En Vivo en el Coliseo de Puerto Rico, 14 de Mayo 2022)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83a12e23b2c7f283b7bb79b6a62b70f22c3c4322613c48a037505dc1b03844e3. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM7282376526 — a six-check JSON result.
Buscando Guayaba (En Vivo en el Coliseo de Puerto Rico, 14 de Mayo 2022)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x535519a68f50c49d5022af40a560c776c803d618a0c069d760ff58d8f9222468. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM7282376527 — a six-check JSON result.
Pedro Navaja (En Vivo en el Coliseo de Puerto Rico, 14 de Mayo 2022)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37dcb8a53f2a7dd579e2e20cfe42a6dff5c9c1b4f5e32fe561193a0f908a2336. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM7282376528 — a six-check JSON result.
María Lionza (En Vivo en el Coliseo de Puerto Rico, 14 de Mayo 2022)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2e36cfe407b290999d15e86d77806d30d8c15cae4a10dcd2d8424a9bbf54f9b. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM7282376529 — a six-check JSON result.
Ojos (En Vivo en el Coliseo de Puerto Rico, 14 de Mayo 2022)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b85d0e9d51070978c7d8f41f1df629aae9b5f964418ef4c8541816183455061. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM7282376530 — a six-check JSON result.
Dime (En Vivo en el Coliseo de Puerto Rico, 14 de Mayo 2022)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa06cf5b0ad8a6bd2326aa993872622d486b6188f5bf254d065844d059f532eff. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM7282376531 — a six-check JSON result.
Siembra (En Vivo en el Coliseo de Puerto Rico, 14 de Mayo 2022)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef17a79efd5b8a9227692d9fe9612acf9bb669ac0cf734d8ffdfda77e522b74b. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM7282376532 — a six-check JSON result.
Ligia Elena (En Vivo en el Figali Convention Center de Panama, Abril 15 2015)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x144870867db61914c07f2316100a438ae09019ab9f0e89305756d120c18bb28c. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM7282376533 — a six-check JSON result.
El Cazanguero (En Vivo en el Coliseo de Puerto Rico, 14 de Mayo 2022)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0967eb013cb9af0de2c05d4fd521af9d04c2873bfb61f37489e993cda33f34b. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM7282376534 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9939507996a68db54086a8c85e4a3016f1c40e601f66f29484193d4575c4a836. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBKPL2148328 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31c2a0f263c349032cd54399fc41799a159904ab2712a68661aea2ea53858672. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBKPL2148332 — a six-check JSON result.