Pedro Marin may refer to: Manuel Marulanda, nom de guerre of Colombian revolutionary, Pedro Antonio Marín Pedro Marin (politician)
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 0xa953ed39ab087bdf6e919bd535c2c2d817ad1c6bca326bbb2219e16463e31f94. 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/eef0e168-ea70-49ad-aed0-ae512582b802.json and https://artists.proofprofile.net/proofs/artist/eef0e168-ea70-49ad-aed0-ae512582b802.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Pedro Marin “Directo” (I Will Glam Tour)
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 0xcd451f741719dedbd1fec4f4d53a1afaf363e32cac78faa19fe9e48d9685149e. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/ESA011302362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfab86ab6ab1636541189329a8d3c0c7ed08474367332d85c8d77066fc644b46a. Chain 2 (Bitcoin): anchored in block 958726 (2026-07-19T11:47:20Z), 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/MX3741400396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3b8a4d42a81de682689c4d358e979ea458890380c3e55db3898e2548b1e0695. 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/MX3741400405.
Todas sus grabaciones en Hispavox (1979-1986) [Remastered 2015]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92841f0cdc3f4a00cea4bbccbadc599cfbde64fe586e0d8ec3e41687bbdd3d4e. 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/ES5151402562.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a9fe37e07c44516a50385304dfde80c9fc90e770f3280cd4df85d2af0562ac1. 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/ES5151402551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa51b056610e7a8252beb86c5ab461ea4c2b9f75e675cdb8e0a1d6c9625eaa764. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/ES5151402552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b3085ab7286446a15d0324cfb17a30eae409893e230b88271f0eddb8f114d46. 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/ES5151402561.
Retablillo de Navidad: Retabillo de Navidad
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fd9e0c2cee04a7da9de10cda43abddcfcc25c707e4b5c69dda31b9d26a68e23. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/ARZ021203897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fec846db01056bdd96ea0e1571fc9e8f4f0ae962111bb00bc58c5500bd2e91d. 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/ARZ021203898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb442663fe887bdbc25e9c240fedc68c364e3726ba053f0855b2a4d43189727d3. 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/ARZ021203901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x212848be8ffe5cf7dd102a9b1a7b761509c2c2e67ded56b37a0e08f5e8de532f. 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/ARZ021203904.