Mirla Josefina Castellanos Peñaloza, is a Venezuelan singer with a career spanning over 40 years. Often referred to as "La Primerísima", she started her career as a singer with the band "Cuarteto Los
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 0xf3e48a59e85af07b5f687cc151270a1105236ee127656a8f2951154473c072ae. 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/41457ace-f040-462e-8876-caeafd732b4f.json and https://artists.proofprofile.net/proofs/artist/41457ace-f040-462e-8876-caeafd732b4f.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 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 0x2408ebc6b518be67eb130ff7bc2004d7699b668a6ace6f7352950e4e146260b1. 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/QMFMG1531999.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f083c8d691d1a82b0747b3477f4022a8f6e596ee5b0abab0290124648ecd49b. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/ES5151701632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa01f54bf968b4fe5f4d967c3c95b3773f57f48943070581fa68485dfbd43e333. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), 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/ES5151701673.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x846d35fdfc622860e8ef875837405110021c73a24ec38a9122f24c46157deda9. Chain 2 (Bitcoin): anchored in block 958992 (2026-07-21T10:12:17Z), 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/QM4TW1670714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8d95f12b96b7ef46683df3ce9ecf269959ce721b91b02519d1fc7ed73a0623c. 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/ES5151701633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e977b03aed6e37e573c5bd6be793ba9e51fe56ba47d56c6b13f8b0d4cba190f. Chain 2 (Bitcoin): anchored in block 958731 (2026-07-19T12:35:36Z), 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/ES5088500090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28f350a2a02558936c255b79168dcbebcf18692a243cb7564645fc6531a83933. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-16T21:55:37Z), 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/QMFMF1599075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7be355cd9b2790f6cd1dee4b4497d922bd9ddd4e61d2118255938a6fa2b4ef33. Chain 2 (Bitcoin): anchored in block 958670 (2026-07-19T05:26:23Z), 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/QMFMF1599084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x829d5fcf0271d917482064675261be6c06b2df9e6c5157e79cebdff781748f1e. Chain 2 (Bitcoin): anchored in block 957043 (2026-07-07T13:52:39Z), 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/QMFMG1507024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00dd8fd91066bee9d3587c4cf62d3cbc7725874bb81b38256ce73d17b529e7f4. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/COSO11300173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9681f2a2f7793f4d285b2cfcb64c22c0e828137cc286aa4c8cefd0050ecbe1d4. 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/US2BR9703392.
Las Grandes Voces Cantan a Juan Vicente Torrealba
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb670f60e627e69f7d6e6fd2d1205e738d035225be093cd2c29bca81b06e071c4. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/QZTVM2231568.
The Night Chicago Died (La Noche Que Murio Chicago)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc038515935ad14ad9e765936e5cdb3b96acc7100a618676b7c205930330e4689. Chain 2 (Bitcoin): anchored in block 960487 (2026-08-01T00:15:43Z), 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/QMDA61384449.