Alfredo Julio Floro Gobbi (14 May 1912 – 21 May 1965) was a violin player, composer and bandleader in Argentina during the golden age of tango. He was known as the romantic violin of the tango (). Ea
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 0xa0ba842c050ac5fa3784122991ef02dd05060c37b4677000ca9648bc7e7ea35f. 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/035d0f7e-2dd6-4c1c-9594-16555817aebf.json and https://artists.proofprofile.net/proofs/artist/035d0f7e-2dd6-4c1c-9594-16555817aebf.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 0xc372d7fab75beb0ac230913f966e7ad5adb2a6afa888c1aa8b0a9df90afd8fa0. 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/DEXO52474202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacadd0f93fed38bffe422b31c58c4582fa4c6ea5c80ee45feb238268da3e731b. 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/DEXO52474203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6329073e335f27aea977dce4196dceea96cbd602f72e95e9b0bb60818baaba3f. 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/DEXO52474204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e3bba696f1183afaab23d1f4be66b3b9f20dc1e0d3f13ebcbd48caccdc51e58. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/DEXO52474205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfba695d83742d26ea40a44e470cbf49a594dbfaed37d22dfe954f8bd4dbb9e5. 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/DEXO52474206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a31b53e4828369082fe7dfaf56fd99380423569ccc12b12021fad679c598c3c. 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/DEXO52474207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bbc8aa6307a31f24711c309a58e338d41728a36eb4aea257c6466fda9278b03. 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/DEXO52474208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9004e9009232049d5c8998c816d544083dd7c657e55b8dc1d76dc75122ae9a3. 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/DEXO52474209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15656128af8490c91fa789c85cf16c09e3452adebb0271097b821524fdb5ae62. 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/DEXO52474210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29cd841cfb713bfaab4be323ab974f4e0c8166c56df608301c5cf794e90a4f49. 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/DEXO52474211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6ca39aeda0f6d39f2e77b57d5d0e02de3907c93aa013894c8430edee40097b1. 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/DEXO52474212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb5bc3e8d6042bd458f2d84257dfbc8060f3ab78f0e8029f70aac8ee43f4c4d9. 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/DEXO52474213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35abb7e5f15ba12f6631a1b85b5aa6d9dae6a1bfc2faf23d4c0a69353f20cbb5. 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/DEXO52474214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ff68a39a614fb96a5f5a201d1b43c6e96c87b454d4b139b14a761d6f1665c3d. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/DEXO52474215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x334b8ea89781435bf380a53a2d25e2ed9b75ed192deedf2fe46b010f55100b33. Chain 2 (Bitcoin): anchored in block 960506 (2026-08-01T03:50:58Z), 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/DEXO52474216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf28ba2820e2f613f912cd6ae2448095fc2f8deb020fd4330f0fcb2121b90f9e2. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/DEXO52474218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c67f840e04ae9fceb1702b48f58dc1d5617ce52f23aab4accb740bc81bb8bff. 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/DEXO52474219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdea9366ab7405757a1655e0c2a91d41a92a7729e1df9683ee58ce57da47e9e68. 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/DEXO52474220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37e76132636038121df8bbc397d9168a7be28d95b938d89a13865f660614225c. 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/DEXO52474222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b23eabf77165dcc290e61708328eb95d6cd3d4b8e3d7d85149d6a99509c0783. 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/DEXO52474223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba62e99007353725aa68e297c67f3f4307bf1ed1c7cd9cd63a932cf616efbe82. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/DEXO52474224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea6504a5fd27d99d0a915c68c1bb98bef3a1d4f327183a4dbd979b34fce4423e. 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/DEXO52474225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b69df6767b6553a5268ee6e7035242e894b294220d9e46d04b920a9dd340cd6. 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/DEXO52474231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53fe7ef06492023c9d3cedec7c774ac0bc4d24374a05eeb6617a44338b2dafde. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/DEXO52474233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a08f30e417ce1f8404cb63a234e17a0725698e67035281819fa6b4800b66bba. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/DEXO52474235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a475cd79d84e0639ed1261e0a7df07796d31d0719bded0e60d4063a101a944c. 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/DEZZ42170617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64e6669391875c8eed63b016053adaf3c7c266ff9db964a94b8bd7b33cd2b4b1. 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/DEZZ42170618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b89a8c0b61e837da0840d1381389c083b8cc5aea0ee558d8a968a06eda941ea. 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/DEZZ42170619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x261c873d662f22bb811772a482ad9b0db7e1788ae76e0f221f8013bf889dde94. 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/DEZZ42170620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cb345159a21ac7df0d0cf54c3211bae8f0d8db09bcfc4388023731596079d9e. Chain 2 (Bitcoin): anchored in block 960155 (2026-07-29T22:13:32Z), 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/DEZZ42170621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cca0fd6395620da8f6665fda503fb5e5c0b987027e3f74e0f9f91b4e1591ea3. 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/DEZZ42170622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48bbc6d9f72c4d504537531a350d065264df4d567787a27451a19b58354b9c19. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/DEZZ42170623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbca4f783bee4f961f7b95eaae731a8b74a5e87339feb638cf891f726b61bea53. 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/DEZZ42170624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b1977d011e89879ec6f862d0205edc491f67514ca22717fdcb304df4b3a9348. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/DEZZ42170625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24843c4e5da603151d6810641f0705ce81e1a39cf50eefb4c5caeffa92df9713. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/DEZZ42170626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f292a3c7d10628406443108ac43c6228e679c3268f911fc98481362c02cc552. Chain 2 (Bitcoin): anchored in block 960354 (2026-07-31T05:48:18Z), 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/DEZZ42170627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17995d79032b333d618b4f43451035c129b77099e4ee75792a9373cef54a9fe4. 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/DEZZ42170628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b189523eeec80d252f3e1d2e56d0469476005c69de92d938e3a94382ac261a9. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/DEZZ42170634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0b6b0df6e438b8a1d46caa25897fb77ac98210006017a89c2950ae7881de637. 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/DEZZ42170638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1efc7f477e2d99c0938462b5e3d3259a04609a376f549e3968522f07cdd5bad. Chain 2 (Bitcoin): anchored in block 960259 (2026-07-30T12:51:24Z), 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/DEZZ42170639.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa93404ceb536dda4548607bad49314e5cffc9d876a3bd2422a53c901570a4e9a. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/DEZZ42170642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc755dbac683574b7861867c57484e2e99d4706e285dfca312d494ce59a0f7df4. 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/DEZZ42170643.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18152c4780e907a9d405e495ec7d3e278dfdd5f764dbe4f2bf1b419b11e345f1. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DEZZ42170645.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4559f9ad9ac710f3c69ea1ecf88b65f0faa9641283ebfaac5f7f650d8b0a51eb. 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/DEZZ42170651.
Archivo RCA: La Década del '50 - Alfredo Gobbi
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ffe02f7a9e584a41b00dd9610de2bc59a5a6d4fe805e268c317ddf031e50a7c. 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/ART340901022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c21f3ff5f796627abfa1833eb35667ffb7ad1de4df15107b7bea6bd160ded9c. 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/ART340901002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x705faec87d4c94b7c20cfece2a78d35c8dc84ed902a5abf1de0602a011a2b7d6. 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/ART340901003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60f947fc9131a29ce9596132b274419a640fc32633077f9e71ca40f3650e3b5c. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/ART340901024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9bfedf7593709f9da9d163dc0e517f9cab1eae83a16d4d8d9b033dc4c38da85. 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/ART340901004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb9debe732ccd82d8a7fb96c10d94eda5a7a75918b381e1b40e82a0ee4ba3a23. 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/ART340901005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa192e164f4726f64c4df3edd9962e548dabacf4bde5299dc174b313181e24570. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/ART340901006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb4cf31cb22e43387f4b3e485c1d2c4a810bba348755385725edef1ff8da0d7e. 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/ART340901026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x973b9691997c7ce1f5cd8cc2d740d2f008350327362740d561f5e20c40d13757. 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/ART340901007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb07f701b9bc69362ef5f6d9741375c55fdfc3182454b5b25558056f97df36e58. 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/ART340901028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe881127103c1362b76d1d2c2e7d85a40e6720e1b8470a2d5177213a6d47f7ea. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/ART340901010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04cbfb7ba22f387c788433622e91fa16c98020fb235bfdd6c4434f55855b3426. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/ART340901011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e328a5246d47d668d8905b9c96e3a59e9dfb1608bd4aa5e6bed32ea6dce0eb0. 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/ART340901034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe00c87b522e3d0285bff4c92183ba634258bada9edb57e6c2d75db8e6d210210. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/ART340901015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6d0e1e4a2bb9a909ff4af645d0d3c3f6d1cee31ca2f5a12e66639fad9a3fb28. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/ART340901017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x583ce504ace86297d1533bca2125d5ec14d9b5402010cf03b4a240aa93e47643. 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/ART340901037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47d0762a6902b009c46d02395160952271725df017ff904dba9db01ab762d360. Chain 2 (Bitcoin): anchored in block 960506 (2026-08-01T03:50:58Z), 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/ART340901018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d0599e64572c0720d46c090579ae7af2059bd37c6f98b5c72974133002a3ae5. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/ART340901020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe59508c0515f2ca13ea964238281cc0cc28845d0ef3b95ff897bf348ec482db. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/ART340901041.
The Romantic Violin of Tango, Recordings 1949 - 1957
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0622f3d878ec600eec4a72e5c68f1196c93d9e7f7634ea08dd8f1b6c6b5e6745. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T15:48:23Z), 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/CA5KR1914687.
Antología: La Colección Definitiva (Remastered)
El Violin Romantico Del Tango - Alfredo Gobbi Guardia Vieja Tango
Adoración, Memoria y Calor - Tango Summer Nights with Alfredo Gobbi
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcba8f9eaabf837c3f39fcc70eab090cca88c7415fa40cf87d549d5a9c500f39. 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/ART340900200.
El Andariego (in the style of Alfredo Gobbi)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6ad0590cbdd76f9aced9510eb4d0c254aa8fc599c4a880705a6a2eed3dc2b69. 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/DEAQ72148810.