Leo Maslíah (born 1954) is a Uruguayan musician, humorist and writer. Born in 1954 in Montevideo, he started writing and composing in 1978, usually incorporating humour in his works. After a consid
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 0xc6af482f4cc3a217c2e9827ec386c231a116212b8ec9907eeb4d5c98d0e540b5. 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/07f9a3fd-6417-4193-b5d1-ebb00b5396e5.json and https://artists.proofprofile.net/proofs/artist/07f9a3fd-6417-4193-b5d1-ebb00b5396e5.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 0xbc9360a837b95f5d5b05dcb55bebb7700a46be651a405969111d7c47af619004. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T10:05:23Z), 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/ES71G1849873.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff78093b5edef586b074f7b125e244bb5a0bb608999d01e567328a279dcd7add. 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/ES71G1849875.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50650cdf182279a0e53e9ad24a5ff4cd1533119d54aebc2f136f06ac6f2ee041. 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/ES71G1846007.
No Juegues Con Fuego Porque Lo Podés Apagar
Aunque Voce Nao Acredite... Masliah Existe
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9071f31409414016779fee10d0c8febc1ba5a1eb348a7787e836204f7a93a6a. Chain 2 (Bitcoin): anchored in block 958568 (2026-07-18T15:23:47Z), 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/ES71G1856076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x572c3d75d7bd46c0f37c9153af86ed14825ecdc2a415bcf7bb5e087a4f93629e. 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/ES71G1845039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e21c6445c2dcb6a1a14f43bba148dc18c234ba33c9fa33db94942bc6e0d677f. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/ES71G1845040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cbde867a48bab825587396e2addb36865302608c88960f5849f260512fe0893. 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/ES71G1845041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4724776c79bae37f5c67de5be70a82e939ae10c9ad973b9c37bef183603ca4e2. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/ES71G1845042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d432fbb59de00704cda3267f8361e6ad10f1f235a7573f4c9e8dba99c514363. 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/ES71G1845043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99b099e3f9802d186b47bfc7c8b0d7b4f95a1e9b1de00404e13b8cbf88b44db1. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/ES71G1845045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93597ff30c04c26a5159fc8ba2380f7d3bcda216146e84102b6d4ad9a7da21d4. 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/ES71G1845047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb9ed171379efd69a90503c84457c0c8f267efb1a35bd3b30d666160b82a2fd3. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/ES71G1845049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91be5a76717e4fb4b78dd54dce4f213ba8a84cf73c576649716880588ebd2a80. 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/ES71G1845050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cbfbd42735d3df38fe26a8a16d9a9626c9109211f82e60487e4cfcd1450b573. 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/ES71G1845051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd800f43a6990fdbc8b95fce22753b33d80ff82b8163e1416d7e4fb1106fc659d. 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/ES71G1845052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36179594d8a517e841f62d50b855823d190f5d79ef23374f08b99139150bbcbe. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/ES71G1845053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaf04e916612d472629f0c7540f4544b00126bdde2d784fe54dc160a33aad318. 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/ES71G1864198.
Textualmente 3 - el Neoliberalismo y Otros Desfalcos (En Vivo)
Obertura a la Francesa, BWV 831: VIII. Écho
En Trío Con Tato Bolognini y Marco Messina
Leo Maslíah & María Bentancur en el CCK (En Vivo)
Canciones políticas, sociales, históricas, económicas, jurídicas y/o testimoniales, Vol.1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x550e6f559740d0233be3e3db671265bac5548df7650f13a969f2e34685fd38c7. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/UYQ120700028.
Música para teatro y cine usada y no usada, Vol. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6939ca25b1f753e604609b93fcb78b00eac8b009dc8a3286a6877653eafed48c. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/AR1ZB2500086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa55e701b0331bcd1d0b3da31927deb2574f83095995515dcbb804901a9ad9021. Chain 2 (Bitcoin): anchored in block 959132 (2026-07-22T13:20:46Z), 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/AR1ZB2500145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x948d27367ce42cc05e680b2c650e9c6473c74fe4110612b6819eea81fe028d42. 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/ARHXW2000010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x164a1d1b5515c9d5e7c367194c5b2b081a40751c859764eb2718bf4955279ec8. 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/ARHXW2000014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6eb75260d7479608ff1823af2af197db6748c99ebba679997e9a494bd2e46d53. 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/ARHXW2000018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79b6fb938b4c537bf4d4b9975a1532ab9489ac37ea9bd5b24440ff66b6178cc0. 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/ARHXW2000021.