Sandra Mihanovich (born April 24, 1957) is an Argentine singer, musician, and composer of rock, blues, and tango rhythms. Biography She was born in the Recoleta neighbourhood of Buenos Aires, Argenti
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 0x3860115aaedafc6a34fb2da00d952df901faea22d7012d37024d466a382a263d. 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/b37f776f-97b8-44a7-9373-db9cbe865919.json and https://artists.proofprofile.net/proofs/artist/b37f776f-97b8-44a7-9373-db9cbe865919.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59beac7571043f0a096574913cb255f2a9201d0ac27ab6673f8e53853603ffff. 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/ARUM71500303.
Igual a los Demás (La Verdadera Historia de Superman)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6198b2f5d3c646ff1b66aabf1154a432b6472ddbf2ebbf299dc1342f344b34f6. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/ARUM71500304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb88cc8a25779f577ad3963b7d1553ca3ad2da5ae8e32f591c5c49775a7c9db51. 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/ARUM71500306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca702f9d5c335be9868f9ed6471fb6fe414f0da545382c0ad22e76f3ed71e63a. Chain 2 (Bitcoin): anchored in block 958506 (2026-07-18T06:14:51Z), 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/ARUM71500307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf46345d4fc65aa55bc70964588efd99acd8350d7d7bf402188ff49331694ff8. 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/ARUM71500309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x867f75bec3f99768fc6cfc4279a98a13f8985688c86a3824c27af0351d547319. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/ARF100300553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8634676681859fd7b14a3f9fd08460e7a3f8cf151aeaab6bb408e7f632115726. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/ARF100300558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2461260f03f8b026a46f6e33e05482ce3bfe860a8a149c77188396797bbf5801. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/ARUM71500292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda653eec7fa3dba5ed097c75685cd831ab462c0b2ba4b61f552ed2a60914b7f8. 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/ARUM71500294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d55d08c4a1adee07f6cd7fb6a7d6ab543fbaedecac4ad0d90af521ac42a7e6e. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/ARUM71500296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc773e5350ee629b03e2caa72060d07f739236f7e2f77babe22ed17f8b5fe4060. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/ARUM71500297.
Por Qué (Tema de la Comedia Musical "Calígula")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8c6308cd9d414c0333909c1d08d99862cdc108ea1d2f8dc81d7f6813da27a59. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/ARUM71500268.
Todo Sin Vos (Tema de la Comedia Musical "El Loco de Asís")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x084742c5d71e8fb07cf6466edf6c6a47c448de3c0df436db1689d4d022f5cef2. Chain 2 (Bitcoin): anchored in block 956713 (2026-07-04T23:03:25Z), 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/ARUM71500269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1edeace98f562deae117aa8f6d54bdd41ab9ba9cd538cde58d8252efc5ff1617. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/ARUM71500273.
Sola en Mí (Tema de la Comedia Musical "George Sand")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7245a0767be8abd2251e48456bfd0d4ee328d749cd9a9b2d2d251db1bead0c70. Chain 2 (Bitcoin): anchored in block 959010 (2026-07-21T15:21:50Z), 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/ARUM71500276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b22f609169ecdc86ff2f802bcd0d9ff63b4072ccef4a3d064caed469df6d14b. Chain 2 (Bitcoin): anchored in block 958987 (2026-07-21T11:32:54Z), 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/ARF038500068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05fb3c7f032b4788f9b17820a50b1d5e3454150ace5c6ae0e5ccab8a88e2938f. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/ARF038500075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x365bb77b387d7188a16dbc4f072229eed7278521140440ed48a8fa10a9cb26b4. 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/ARF038500069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa012d35529072b8b600589f9eaf7202c715bdd8042c7a69c5044a0f4d34bb9ac. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/ARF039200180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc805e6e254e19a1de189e316bc28ac7d982def8d3c6f4f972b6b94c14a756316. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T19:17:28Z), 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/ARF039200182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd817a041daa460bcdb62e67bb3dedc13f27932c33fa8ce2042385ddacb686110. 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/ARF039200179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5afdb798557ff7a52b55a79fcb7684bf951a345f2cd241851f919b73834c76e. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/ARF039400750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbe54b3f8851c06d7bb64d2186e22831362c026cb02a4233b00a2161ea36a85a. Chain 2 (Bitcoin): anchored in block 958617 (2026-07-18T22:07:13Z), 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/ARF140000016.
Colección Inolvidable RCA - 20 Grandes Exitos
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cd1c2801a129946623e6f7e681f9fe497f9a4eaf14aa0ff645344d0ec2602f1. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), 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/ARUM70700349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x074607d3ac42e028354c82de4a382b30acaf89070840d24bc9efff1167927572. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/ARUM70700356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f0481155d487ef118bebc2f25782e6d06fa05c7334689561f31c40093005edd. 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/ARF038600113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa012d35529072b8b600589f9eaf7202c715bdd8042c7a69c5044a0f4d34bb9ac. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/ARF039200180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf17f89fd5bf9dae885261fa45eeee9400b63336444a5cc5d96831f78c36d3846. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/ARF039100020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0beb5b9eac9d8e022046d3a6c09e94f5dd2718810f49ca1bb51755256cc782e9. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T15:42:45Z), 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/ARC080900080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91a1c84855fe9c6ecf442ef897f6ae34cc97afdff1a89b6aaa6cffe6a705d9f4. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T01:59:05Z), 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/ARC080900094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ef9928aa4fa8d3523f31d456d67c996137aa8bc223d547cda40929fec8e1b09. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/ARF051200634.
Quereme Tengo Frío / Vos Yo uno Más uno (En Vivo) (with Marilina Ross)
Quiero Encontrar Mi Lugar / Falta Poco Tiempo (En Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb29505aca83c07ed48beee4f8984f432141fba2cf51bbbaabbab604efcb76e35. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/AR1E01700001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9af9bf1179dc0d9350fe2183c14b845aebb34c8fe1aaeb7306b29b960edf508c. 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/AR1E01700002.
Vuelvo a Estar Con Vos (En Vivo) (with Vane Mihanovich)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9787466256f0257d841265ddad53a618f4bb331d808fe767797b123d549b44ff. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/AR1E01700003.
Todo Brilla (En Vivo) (with Hilda Lizarazu)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xece29e7077089367fe1a7062b535a12eefcfcd90aacc8cef9ad984ee49a61cd6. 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/AR1E01700004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x107fb676c1f97d5ec5a0a67c484f56938eb53815f9a71c00e750be9f20853874. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/AR1E01700006.
Sin Tu Amor (En Vivo) (with Patricia Sosa)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99f1b4623da1b1777b924edb0d3e873d144b1b79094a262c5d93da465b1f4ca4. 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/AR1E01700007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1628bdb8630056b117ea8119eb587ea3ff53c5d119aceb3cd00b20704ff2364. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/AR1E01700008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3e4817d8e4a9f1d7235d81fa88c0e50763ba5f7425ebbff31935d5d8165536d. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/AR1E01700009.
Me Contaron Que Bajo el Asfalto (En Vivo) (with Fontova)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x990aafad71cfcdcb9d279a78a6ad33dd2a61b6b7b3b475b8fb0e835f4f18acb8. 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/AR1E01700010.
Vuele Bajo (En Vivo) (with Benjamín Amadeo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72547320a797719fee3619fd8e25449be511c86cc8641d0a4e34a068ad44a5ab. 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/AR1E01700011.
Por Tu Ausencia (En Vivo) (with Marcela Morelo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe762225fa7f9690f26810a465c3281901c0b0bfbb69d09100ad901629ce44da6. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/AR1E01700012.
Cuatro Estrofas (En Vivo) (with Alejandro Lerner)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc43fd454075efdeae2afd4882c4892530a7764df250870a0f3a8e51fd9506b3d. 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/AR1E01700013.
Como el Padre Sol (En Vivo) (with David Lebón)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x809250ea828ff0a7f99f423f1e5042ef5c31482d1c2ccb110ba69932d0a04cfc. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/AR1E01700014.
Todo Me Recuerda a Ti (En Vivo) (with Lito Vitale)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3887031d5ebde5a757b98fa9875cc0725968183b686ae2b50d2fb5cea088c959. 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/AR1E01700015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c98d0a48de90cf8c6cfc203f6a7d461bfb030953d88d7271ce3f78b82eddd35. 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/AR1E01700016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5aa7f4d962373e262e0399af54636f1b95d0f3ca8e0d920f53184c9963a3efc6. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/AR1E01700018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf8c39dbce7939417dd0d53d625489e6c504005322206892cfcf8577cf4deea6. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/AR1E01700017.
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 0x242b2b0e061ed8b825840b73e4a99997ebbeb89ddc718f346db6a9d3c8f6da62. Chain 2 (Bitcoin): anchored in block 960113 (2026-07-29T13:38:16Z), 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/AR1E01700005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49e4af8c892e8cd6c708954ad82b8a46a7efebae53ff6103d6863bed8719aa48. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/AR1E02200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe76dd9de9565c012bea6c3bbcb3aa73338ce4430f9649c6450d4d1fce4327260. Chain 2 (Bitcoin): anchored in block 958891 (2026-07-20T16:00:49Z), 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/AR1E02500021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe98c5c62e0805fedf036730d8b13673943912832c73c40b450dc50754dfe79b7. 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/UYB141402001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe11a2e62bfb9f4f4ab82017c8de059f3855a67eecfc7933980a2284ec914bf22. 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/UKXN22349867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x005b80026771c1cdcd73a68bf902c3eee416c5e3b21a350bd0dd5d093653662f. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES71G2058642.
Raíz Spinetta - Versiones Folclóricas, Vol. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a55802ba75d68c142dabd406c538fc0646ca220b4cdfc52cee749416990357b. 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/ARF391401516.