Horacio Adolfo Salgán (June 15, 1916 – August 19, 2016) was an Argentine tango musician. He was born in Buenos Aires to an established Afro-Argentine family. Some of Salgán's most well-known compositi
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 0x1cadfb54567864792ee69764fcaa35a5c3cbd9dae30bf59be694c4387c70c3a5. 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/9beff5fb-0994-460a-b8bd-758ad7a0ec3c.json and https://artists.proofprofile.net/proofs/artist/9beff5fb-0994-460a-b8bd-758ad7a0ec3c.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 0xb07db312101364954c28a735dc37a3d17691129e56089f260e63932b6a24eff6. 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/ARF096400035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f89422a6daed2c5faff6c5275146d5a184b34ac69e38711b91045857351d81c. 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/ARF097000033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c83d112297f3dcdb3c15883d705d25a155f057e451b22ae71ed2bcf9c9a4312. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF097100072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc0ed29dcb3c1bcecc20f96fb3fd356bdfed880ba4b27564700eec5489a4c1d2. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF096700058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x578b62f6103b84a277be984bf6fabd5e3bbd6072dadd2e7cfcd828b2c9bbb476. 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/ARF096700015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6529d06ddce86206868b17e9aaca55fefe158880560ac892803b8fc5d2476465. 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/ARF097000013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x143c25bb042009e2e2d7cfd2f3568d00845ca5bfeeedf1bae2f17b2e78c9b4d9. 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/ARF096400065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28667bbcf827d8f0d77d5392a7d82db7c3592521cd20b7a19d0806c0a303bd35. 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/ARF096700012.
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 0xc99f6abed1023c40cd5f2fd4aab5883e83919e6b045daf4a2ccb83f325294954. 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/ARF097100070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3353167f60d8237b1e6f50da4d22090b1e0130fb7de66ef130a738fc513d343f. 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/ARF096700086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x013319ece38842e852ff005d5055957e87575276c9d27b564c4b89cd7ea33039. 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/ARF097100071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17404ead6ed65d645fa7b0c388a7fadb1a1f10724b3e122d79199f11e24935b8. 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/ARF096200065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb74dd48e6ddfb5eef12277002d321a2da69664cd10fa360fe6faff487d3572cc. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/ARF096400007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6e47c0f958b8eaa2585383dd9d92c507bcf723b1c06ffbd68962c85e218cb30. Chain 2 (Bitcoin): anchored in block 960309 (2026-07-30T20:35:49Z), 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/ARF096400047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb6bff72e13caf9774790cae37151bd0e99dd9b77d5589d9b453beed8313e0c6. 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/ARF096700087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedfadbf95bbee3bd1c106f21e5b0c521fd1a875416bcada31340e231d35004a5. 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/QMFMF1305288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ad227b5267ee5874c695f30f77c3e460e8f85ad277d04c576688c7da04616bd. 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/QMFMF1305290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe70055499358c607157c62cafbc4e0214e785c95c6d1132c81694c23fb8df2f2. 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/QMFMF1305291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafed369919281e63ec97615f276d1435b2a303b1014cf03e8dfc603739200779. 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/QMFMF1305293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52dd0667ba8d347848e07cf723250ececd26c4006ef05bc2d6ffe11a12f0585b. 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/QMFMF1305294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda56d62affa7c23183703a1047b942c9d895e35f97c715487b62c467ab6cad48. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/QMFMF1305297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8a806cc23e1aa3d8266656076d928a5686b41a2b4e44397ba8c16fa979f7705. Chain 2 (Bitcoin): anchored in block 960199 (2026-07-30T02:30:29Z), 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/QMFMF1305287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5a95f916dd2b36a9d6586bb379b2571469f6d3cfc20b5f937c00a575a724b6f. 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/QMFMF1305289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe04f171f261986193c66fd4aa19524b5d4f08538305c31b7135a116d049a8d53. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/QMFMF1305292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0eb126679a52f3cd8d4b6e6ed04a7703fbdeff2038a48d97d5ea7d3a7e35a91a. 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/QMFMF1305295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b78a5ac2cca37624c38cad0c4c23ccea73b9feed3f51800de6c7400499a0048. 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/QMFMF1305296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65dd2e339d796ce6209a6441321e45492eb162543460eea3834d51dd00b6d5ad. 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/USHM82127389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc43c9a83fc5218fbb2d3d65af038cc4c337a5028f5c89968b8f73bf250676b66. 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/USHM82127392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c68cc53767e59818f869073235bdc5a19f07c72b4b4ff66d43438b63e7b5739. 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/USHM82127396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3cf38d768d5a426270852e548490b5303b1c9de8dc8d4327e78bd828d2045c7. 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/USHM82127397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2018954158d8b738d41084fdc66293a37a89977a12c4442b6efc189bfd2992e6. 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/USHM82127387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68bd1b9b89c78e014f0fadd08d45b1d0879457f3f54a485865ea28b7d1089106. 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/USHM82127388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55eff7cbc00143a932953bccf155fe0b6eb6c0c874957c50ca9525b2b2cade00. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/USHM82127390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98acf02d697aa7e7bc081fc7b5b69c7c6daefe4f0355551274f0e0d5d896087d. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/USHM82127391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf718766b0668fe32e40e9d98d2466e50343eaf6e9750a489aed9db2004af7f99. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/USHM82127393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e836d77e5b94c37b618322426e391fcd6e3d5289e45bb70bfbef20992b9fafc. Chain 2 (Bitcoin): anchored in block 960389 (2026-07-31T10:20:10Z), 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/USHM82127394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe81bf3e68e276f0d1c01ae9bfdbe50df84d279e0c288cf421ebbb72b48d11f53. Chain 2 (Bitcoin): anchored in block 960407 (2026-07-31T13:26:30Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM82127395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40a04a1ff44e5318d7764f54dae7b63379e5e691df37f926a36bf4cc554d8b46. Chain 2 (Bitcoin): anchored in block 960389 (2026-07-31T10:20:10Z), 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/USHM82127398.
Horacio Salgán – Roberto Goyeneche – Edmundo Rivero Teatro Colón 1972 (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5279a75aeb688a4c95ea32c21d04e0715e586761ccd492a8fd4aed49d0acfd8e. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/ITTSH2000001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb9a4b0626cc6a8a3675f865c1fa3675b4b5c24ac9db7ea1a375fd3cb47e727a. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/ART340900205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e3ebdf2c91f0815ffce4c0ad2a279d3f6b3ac7fb950953d08f78ca7bad011d2. 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/ART340900220.
A fuego lento (arr. E. Runge and J. Ammon)
Cello Arrangements - Piazzolla, A. / Villoldo, A.G. / Gardel, C. / Salgan, H. / Gade, J.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f4f69cf056b92771ff3d2f67db81234f0e01b7c289afaa8639d523e0d50d5f8. Chain 2 (Bitcoin): anchored in block 960509 (2026-08-01T04:30:37Z), 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/DET900812604.