David Oscar Lebón (Buenos Aires, October 5, 1952) is an Argentine rock multi-instrumentalist, singer and songwriter of Argentine rock, long considered during the 70s and 80s the best guitar player in
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 0x5b3b8274d91f0046bdb9af24599d54f31af6890a1b45f9a50843884919710a63. 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/ad2f421d-bd93-4faa-9bd6-5f5d43077304.json and https://artists.proofprofile.net/proofs/artist/ad2f421d-bd93-4faa-9bd6-5f5d43077304.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Desnuque (Homenaje al Rock & Roll) [Remastered 2020]
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 0x2f75dabc8b077ab67034ea446f577bf49b57ebf959ab5e1b56326ea172b8c57e. 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/DGA062066873.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf393d2627e80e5b7498895c7a39ec115477b4ec9520db570723284007d5a50d1. Chain 2 (Bitcoin): anchored in block 960164 (2026-07-29T23:23:05Z), 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/DGA062066874.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3487ec44462286da49588422e24e22b17d4a13a827ec314431697abfbd55d4a1. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/DGA062066875.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7b17faadad07c8bd94286bf41d9cde3d688f6c2c3376aec360b5d032fdc9d03. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/DGA062066876.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27bec41f96567ac42804add79107c9cc6b3edf74f26d6251a66ba866de90bf54. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/DGA062066877.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94138bd0c40395beb54ecbb09e5659926001ab323f658a81c59d7747361d092f. 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/DGA062066878.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a022933211147d8e17076a3d2168d3ed8894d063d011a67d09a301ed8cbc65f. Chain 2 (Bitcoin): anchored in block 960485 (2026-08-01T00:10:46Z), 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/DGA062066879.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72366eca5896ce43aafe590fb09d236a8975c3ab5cc06bde59f2b1cda4799cbc. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/DGA062066880.
32 Macetas / No Confíes en Tu Suerte - En Vivo, Festival la Falda 1984
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70b894257e38c0a375c676155d0ce3eba12bea709dde4b95c277ab21c3ae70cd. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/DGA062066881.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1eead7cce220b62a2df47ba3f2aed0f8fe359e200ac76936bb8b4acf9d6a74a. 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/ARF102400095.
A Rodar Mi Vida - EADDA9223 (feat. David Lebón & Leiva)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93b2c05553291479f46cbabd1c6483a6acbcd182bfb8d48790cac36b793b68ad. 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/ARF102300058.
Presente (El Momento en Que Estás) - 50º Aniversario
Presente (El Momento en Que Estás) [50º Aniversario]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb72ecff2c7ec684e06bbe3a8946679ecc8bf2c85b9cce4cc10c6bc9f7366b5bb. 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/ARF862000035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbfe9e146d60a1acdbf5c83d22602755877bd97a39dfdc2ec830e2c8d4cf9437. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/ARF850700495.
Cinco Décadas de Rock Argentino: 1966 - 2016
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3301acb1b22da6cbc4ea4bd9ef8510f3659bd681a816f84a2f4d7c344cbb473d. Chain 2 (Bitcoin): anchored in block 960212 (2026-07-30T05:43:45Z), 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/ARF100100577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3d793f98fcdc0e7f4850556dd65950b3857cd4c8ae2f35f7590e08c57d2d3e7. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/ARF100100583.
Cinco Décadas de Rock Argentino: Primera Década 1966 - 1976
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3301acb1b22da6cbc4ea4bd9ef8510f3659bd681a816f84a2f4d7c344cbb473d. 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/ARF100100577.
Dos Edificios Dorados (with David Lebon) - En Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f5059a6d5bfe15bb3f0f0a33d5664ea83d919ca9421790bdc8a14d565708dea. 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/ARXP71600896.
Hombre de Mala Sangre (with David Lebon) - En Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa20aea3a0e0c0a8aad6fd28eb8a4b285e7729c8b2b2568fad669a117f223cd83. 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/ARXP71600897.
El Fantasma de Canterville (with David Lebon) - En Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6b5e2a1e1fac6a84318a952296a58176cbfbd3f6dd5cf79ebcc96fd46435bcc. 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/ARXP71600899.
Tema De Los Devotos (with David Lebon) - En Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x228fa77faf752c99bb06468a7f761ebc5fdfcd8a4431130b3af9455c789d263e. 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/ARXP71600902.