Daniel Alberto Viglietti Indart (24 July 1939 – 30 October 2017) was an Uruguayan folk singer, guitarist, composer, and political activist. He was one of the main exponents of Uruguayan popular song a
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 0x59ce4c2a0fd4e5e02dd5a9fe7003ef0c384eb6e4061fe707b82ad84d74d0858f. 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/821553f7-4186-497e-99bb-f574a5fb83d4.json and https://artists.proofprofile.net/proofs/artist/821553f7-4186-497e-99bb-f574a5fb83d4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Uruguay: A Deslambrar! Tear Down the Fences!
Dale Tu Mano al Indio (Canción para Mi América)
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 0x981dee1e3a3adcb344299595879813af5e2aead3c8d3332a464e22ba0348f385. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T15:02:30Z), 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/ES5061201101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a1578ccc63786ebc99b683690b2fdaaf1a94e8876521cc55d5450dbe368bc73. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/ES5061201102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b1fa7aef5790a8cd9dcbff352351f59fdeb8af1d1c8099f5e54035f73dbbc4c. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/ES5061201104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1178e4474f5790830111db5349a20eada1ce8f75e52c23787d1dacbc9d39d7b. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/ES5061201105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe0f75fd80d1fc37d3b1a5a4f299016067801c3816008aa3be897471772011d6. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/ES5061201111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3813cf909c683ea489d304ee3a1555e513399e18c7f7ab9334c6be91b1a3fe5. Chain 2 (Bitcoin): anchored in block 958880 (2026-07-20T15:10:56Z), 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/ES5061215802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22b5b0e5adea2ffb9e20738d715eed4d3afa4a42e0fcf12a4de0ece8e18e276c. 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/UYA139900092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dd24a410b438e23bc676cf4246ef31307601d47810df99eb2616e41b3334d56. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/UYA139900095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf64ced2f9561876bb63b24f7d9c8d722179518f85af87515fef612b9deab1d34. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/UYA139900100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59c44793e2fd9150fa6e96ed1584161839a39d51cf416383824e13d6ec99cb40. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-20T00:12:47Z), 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/UYA139900103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38969c158e535f75ed1988d5ab245fdc7c7bf71aa0addb534dbf480d5e167f29. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:30:38Z), 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/UYA130000097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x759780adf68847ade68eb719d7249193455b485c94222f4ce946751872053c5f. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/UYA130000098.
Declaración de Amor a Nicaragua / Con Nicaragua - Fragmento
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe49d7dac88a37473da67586ba3c7dcb2c59c856edc985407d0d64f40093aef51. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/UYA130000100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x030875b26d59248256ca76ddae503e5af73e96743ff0198735aa2169d1113977. Chain 2 (Bitcoin): anchored in block 958322 (2026-07-16T23:25:02Z), 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/UYA130000108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73459c20a30f274a55bc01e7d794bbd9669d8ece7326a7649c00c5c049fd9153. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), 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/UYA130000109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd61405b188c2945cf9b1071475546081134ada2ccb655ef95ae6e1067c8ae2a8. Chain 2 (Bitcoin): anchored in block 958422 (2026-07-17T13:35:31Z), 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/UYA130100018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa24ad8b0bcc8809b9e5958f2d46054e9889412683d0278349f5dea7baa8db753. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T18:12:16Z), 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/UYA130100019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5817c4922afe6cce52345d926be7d924cab4ff2d9289fd998a61928c1181f90d. 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/UYA130800095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x716884422e9a9ac142710ed78878fa102a01571734737b98326b5ae8222c1369. 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/UYA130800097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdf05cc70feb6c9f6f8f260c4bdec6361be9e7def3d5cf6c98eae6f697499efc. 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/UYA130800099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdca1ab81156036bf56bb6ea6f12284b3dee70ea5e7955b00a1fe21957f40f4dc. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/UYA130800105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a10c33e303c9408864b19b6cda817917268c21d8acf311c3b859e620a4a8ebb. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/UYA130800111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cc35c85dcc7eaee87e4aa2d1ac802a3c6a52be3012d74126bf9240c0c067b5e. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/UYA130800112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fb483e99fabc5d6c5e668d3a3fdfe131dca726be12fec70e82549f4470ba25c. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/UYA130800096.
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 0xe442d9840e6bc9dc8d72f1ae6f239aead4cd657b107ac481984b0734f2ac6ca2. 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/UYA130800098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5537c9f6279cc19821c2d3d6eeb5d1a951c20179174d0a76912b40222388ba74. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), 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/UYA130800100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84bcafcd316123e40ff88df0056a9b9d4c29513f5291a32eebe5c777212031cd. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/UYA130800102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3a72bae8aaac28a28eeaba49b1a83e44c7a0edd1323bc113e1c9a5c6d766103. 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/UYA130800103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ec9118a6683b60eaa187c20dc07faf6fda928a5fdca586a1347efd3c36caec2. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/UYA130800106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaeeb3faebc357173422f1259d083e793eba2dbc4df895673086c6d3e683be5d3. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/UYA130800107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6025494e80ebb627ae49f838683c9bce65eaac007d3849692fad6fc682419e2. Chain 2 (Bitcoin): anchored in block 960268 (2026-07-30T14:53:07Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UYA130800110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e6c2918c46f2117e4c4dcff5004b9ba5e3b06d777082ca1fd7ba9663543072e. 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/UYA130800113.
Canción para el Guerrillero Heroico (Versión 1967)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d5535b26a1ba38b3d2b2768ee955e632265cc09e3a695ec7731544cf97b620f. 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/UYA130800114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b83a409690e102ff7297776f30d1545521e5b242b6d645f04abbfa711d79060. 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/UYA130800115.
Canciones Folklóricas y 6 Impresiones para Canto y Guitarra