Alejandro Restrepo Mazo (born 30 January 1982) is a Colombian football manager. He is the manager of Colombian club Independiente Medellín. Career Born in Medellín, Restrepo played as a youth for Est
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 0x10a6f9ed0fdef779f8c7f8745e7f9ab9b6b32bbebd93c70d361db4439cf79a84. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f2d8a814-4b31-4090-9fb6-4edb54eb12e2.json and https://artists.proofprofile.net/proofs/artist/f2d8a814-4b31-4090-9fb6-4edb54eb12e2.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 0xe9c13fbb71d5eaa905b2841b0469092eebd220b012f270171efa766d1ef46175. Chain 2 (Bitcoin): anchored in block 958706 (2026-07-19T08:50:34Z), 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/QZZ8B2336141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10efe008635b8079fb66be054e3a4fd3343b30d94df9d326ff09b33c3aa53951. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T03:29:46Z), 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/QZZ8B2336143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4aa6f21d9abbae263d6b186eae4cd35707a75078d16077504f88e3db1fd841ae. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/QZZ8B2336145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed64658ade3075cfce6d48f1db1a0e72f9b07a179432e205250dbc93b3620e07. Chain 2 (Bitcoin): anchored in block 958911 (2026-07-20T19:24:41Z), 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/QZZ8B2336146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb93c68694506527b3fc88c7113e352d12b586f22d63391a670402167642cd9c1. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T04:29:18Z), 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/QZZ8B2336147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69630b96a955b2fa64bb9c9cc13bc8ecaf7603a34661f00c6240d1b0f63715dc. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/QZZ8B2336148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc58a2842535c06937f1b326a02edcaea626f1bd74782e6fc98636486e3a0922c. 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/QZZ8B2336151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ae989abbf3412c3f3b0fd094bad51144ff5b74b2ba3af0a80f966ee7f00c230. 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/QZZ8B2371385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a011ab1d505bad2419e22c0eef024e139df545bb95bfe221768a691e1cefaff. Chain 2 (Bitcoin): anchored in block 959088 (2026-07-22T04:06:24Z), 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/QZZ8B2371387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4eacb2187aa97a8a917f0f2c38933357e4010a08088e043a9dfaaaff1657a730. Chain 2 (Bitcoin): anchored in block 959088 (2026-07-22T04:54:03Z), 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/QZZ8B2371389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd175ec66e8997c1f3771bfa58fbab9ab37697d3257993ca5de8922d3315885c1. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T03:19:04Z), 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/QZZ8B2371390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3eb684958b8faa851f803704e3e7efb67642aa4486f480430d38d3ccb579a5c7. Chain 2 (Bitcoin): anchored in block 958721 (2026-07-19T11:02:33Z), 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/QZZ8B2371395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d5cbcedc63deb4d7229f9a2ebca4d90e7354b4841a349f703b93466a9a99910. Chain 2 (Bitcoin): anchored in block 959089 (2026-07-22T04:41:40Z), 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/QZZ8B2371409.
Studios For Piano III: A Night In The Mood
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c507e21c6d5b04909edcd907afaa88bd201507f4a40bea637ab0309568bf6e1. Chain 2 (Bitcoin): anchored in block 956637 (2026-07-04T10:56:23Z), 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/QZZEB2316813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81e8a41c10b7c2f8d863eb1ffc2725679fbc69708bf1cb209af55a785ec7e0a9. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZZEB2316830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2104e0604f9176e1573b5dcf5ddae888be60aac00c6b0e17d1433eb12f6d6bb1. 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/QZZEB2316866.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21e913d52995f0cb91af60c6fe4674a784de31b0ceebebf8fdb0a0fb253871dc. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZZEB2316880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbb76c00e3a0a6135b6eb52bc9a3c32da617484837369672591802747c3b423e. 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/QZZEB2316896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f9c02fbf0cbd816e53ec35e96a34036f89be44742ea66fa1cd0821b4b189b84. Chain 2 (Bitcoin): anchored in block 958399 (2026-07-17T10:39:51Z), 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/QZZEB2316928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9865ba8c8e0fd5e270dad8930df40ed46620db480d1949ebdb8f024f310c17d2. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/QZZEB2398415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcae080eebdddcc67cf116d886c78ce4069588471a6e3a2282707c43c0666c3fc. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/QZZEB2398417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a297b08f966834a10601f73f412534a503b679ab26997792c9183c342c94fb0. 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/QZZEB2398419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c9149b37d5ea61368fc57fc6574e9798bdd9ca026a7d5d19b6f4db8aaf22953. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/QZZEB2398423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb2ad1baa4f1dd76a096adc281a0e5b1d0f09de28972c920a605f58029cbc982. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QZZEB2398426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe84ebbac2ce8cb0d0955d3fff8a7fc8c8e6a38502c37541b34215f6e9cc3b45e. Chain 2 (Bitcoin): anchored in block 958720 (2026-07-19T10:53:46Z), 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/QZ5FN2445022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x720ac4e920f9a255cf5174cd935d795ca0272828bb1df2f640cc30c15fef31cf. Chain 2 (Bitcoin): anchored in block 958738 (2026-07-19T16:00:57Z), 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/QZ5FN2445027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x894fd72a30d00d2e1ad58edb78692b9b8936b4448650e0d09f007f3f610044d6. 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/QZ5FN2445030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d136de24af9d043cad3d2532f4c895959cf7611d70f8755eca8659566e62968. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T08:01:57Z), 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/QZ5FN2445032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56efbc9e4da9812a1b8a9d1989a44d10c839b8e4a84cb008795b15ca0c536eb0. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/QZ5FN2445033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa65ba76e3b4c64f15159e2ba47c76d2e76d374a34132b19d441034757f46edbc. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T02:31:22Z), 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/QZ5FN2445035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc699cc263ebf04661a060155a2d47fbe6ee4f6db356ff1a74a644094941163f1. Chain 2 (Bitcoin): anchored in block 958491 (2026-07-18T04:29:42Z), 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/QZ5FN2445037.