Francisco Rotundo (4 November 1919 – 26 September 1997) was a pianist, composer, and orchestra conductor dedicated to the tango genre. Personal life He was born in the Belgrano neighborhood of the
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 0x84d3a632b8856f1c11ac9cc73806c39e947a9ce0f97690886b27206c49a30bc7. Chain 2 (Bitcoin): anchored in block 953697 (2026-06-14T21:49:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5a044038-64fd-4930-8c5d-45f4986906a9.json and https://artists.proofprofile.net/proofs/artist/5a044038-64fd-4930-8c5d-45f4986906a9.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 0x2122a7936069cc2786700d3969e67a7da5cbe6422d5e0e124a7dadb32f1dc450. 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/DEN721002378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d3edb9b90adbf9840eb274bc027007dbf304b49d3ca46042ffd5ba69a22ec1c. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/ART340900971.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd07b6803439ed1edce99ee452df0311b340011a32d0dbfba7909b3a0d4e37a4. 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/ART340900972.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2157be8d8d68a7609fd05ffd582dfc691d5fcc210bf33df00a3954700c2d3bf2. 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/ART340900994.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3ae01babcccb2ac18b25f7a1b37e6162d1b0d625bd702c465ee7662442d10df. Chain 2 (Bitcoin): anchored in block 960210 (2026-07-30T05:21:45Z), 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/ART340900977.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24f7ceb97c22f0d73301d899386d08616538ca95fa92ec7a44d37f142ece9ee8. Chain 2 (Bitcoin): anchored in block 960355 (2026-07-31T05:49:18Z), 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/ART340900979.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66eb10058ae93459c1424a5493b8058f8852177065ea7cdbade6e26f09ed2e32. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/ART340900981.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bb25b2b1dc4a88129c74a6850ae749a4658135d47c1a21162c15b993cca1875. 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/DEXO42238516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b92ff1946f15bbe51733d959b5ddd935c3b7b37a5e75fde3f306de5badd425a. 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/DEXO42238517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b5f3b51590e7bb499d131e0ea45998850cce017e85fe5b8379062554a26b609. 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/DEXO42238544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03fb770c3b11e8ea13ea81d06afd2ea468cb101f53f96709e0d13f7a408aec99. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/DEXO42238548.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1ae69154e8326925f85bd23950b30564b5cf14dedf040d58cd9ae4393d3a5bd. 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/ART340900182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63d8585be55842039a3b9bd172873a28eaf3e16947065bb5d91f0027f0fa9111. 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/ART340900207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2005d13961ba0c336672d02d84e2d5b980d1557e046008078f9b4391cd6392c2. 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/ART340900183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6c7a227efe81f82ef260d8c6732379ef60f987f81da990ab2641943d8c21a96. Chain 2 (Bitcoin): anchored in block 960387 (2026-07-31T10:06:30Z), 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/ART340900208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb440d4f89e4504b9bbdabd7dd79cbfdd64fcea0690f307d56e139bdd352172b. 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/ART340900184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x235304d1313c7065a10d69fd3ba3909105cb1af25e00f4cb0fa8ce6c3d263aa4. 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/ART340900209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe10e62291d27569b7a7a37024d966a0e6d3cea7034ead712b981e2dd7ee3b4eb. 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/ART340900185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfffa9169f8d522ffe90098e8352d618be30f4e45a13fe256c296bb44b8badc5d. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/ART340900210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f54e34151f71dd7222938009dbeee6909ea41949c276d7bf43d5c02b23e3dc8. 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/ART340900186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe54e3d272117d6c88d83c8a5c2e48f2fad9b98e8fa576b916c4d010b1e0bf357. 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/ART340900187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c01f7d2d29ec3163e344e47793288f802dc60b4398ec3fccf7d55d5eef6e391. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/ART340900212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8a7e25aaac212bf4c7e8005e13b73cff431d24595938b4ce4a7b6a5dfba34be. 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/ART340900188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa77145968f4dacbab9e6eed8b68dda7ab3e95d84985be5feb7b0554f756f21ce. 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/ART340900213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x069783e7f4cbb40e2f7d4051394b4b6ccf5f2a336061c96715c46a2227bf9c83. 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/ART340900189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8533ecc857706e951fd53f34ecc240e8c32e8110916cd04beb3f5b8644d1add3. 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/ART340900214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb1895ad84dbb52ddc299ffcd602fc89d40adf194bf096fcd4ca63777021dace. Chain 2 (Bitcoin): anchored in block 957064 (2026-07-07T16:43:08Z), 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/ART340900190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ae9dd6f50fa7d993c9e57cbcd7663bae87c69024ed8a72754f18c3422ab04a4. 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/ART340900191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e83e8c6efe8c7b265303fc60a9c6642c88fda5ec61d919f1732cff30faf77a5. 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/ART340900192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80c02fd25e827a7c2a7bb142e5de4d0981f2bb78e9afa7953995bcc036fe72c9. 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/ART340900217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9aaba29bb74bc3607dfb6b8908d14b63e6c0cc55b0ab862a9f4138fe1abab1a. 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/ART340900193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf62a0ac2f7e06347e2df4a1a599dccfced6f240b37449350666164015a0dc567. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/ART340900218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb394110fe8cf094e136c7bac3a41c6c774d568beb4a8869704a98647bb1e6b17. 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/ART340900194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddc65e645ef16d596c9fd93efc842a62d369b270917067f86c2a6034947895e7. 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/ART340900219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ca042708a24b45114323d68c2b76014dd038d4158c46c192c5735c4261599c1. 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/ART340900195.
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.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87df89833d35157edb7a3ed25831d5b947f9dfbe978e0fd58529a4610c721e6c. 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/ART340900196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a266dd8f5734537faf36c012fb783b5c71a303907806239d43553c90dae47a9. 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/ART340900221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb819e51faa25893ff3ff35f625b30789309eb99dedcffd0b58f4b4e2f5c0c7c0. 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/ART340900197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7eca748b2993fcd4b01ac0e27529d512df23b60836c73a92000734c74e5ef715. 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/ART340900222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6823567a06d087381f343df73c9330adafa1abc9403d35db825530be0babe72. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/ART340900198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x109bab6d35ef77e2e0f451a74c93c314961cf05bb58cb385215fadae0fbfa2e1. 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/ART340900223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f6a343b41d240332b10cca98f51916615b9484cb0798244dc6f188946c35049. 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/ART340900199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2963194876bfaf169062a797bc831e315c3c33e40904bd005c43a6866f18b619. Chain 2 (Bitcoin): anchored in block 960381 (2026-07-31T09:50:11Z), 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/ART340900224.
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.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37ef9b54dbfbd4f16b13f6b90f20c2e3a69c9d291a48fb50221e0529fddb4b82. 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/ART340900201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45ef9e4523c6fe3f3c8173aca579f3157efc1272c820145b569cde97f7ffbe22. 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/ART340900202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x564165ef3a5a82c963a0ca50b071f318e877162a34d5065e40d5551c3aa714ea. Chain 2 (Bitcoin): anchored in block 960173 (2026-07-30T00:11:40Z), 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/ART340900203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x879c9b5ee2eac087e441af281c7c52472fa0a8e5026678b6a7dbaf8b6c5222f4. 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/ART340900228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1767d922f51ea2d120a83ec364bc0c322f90f9d4935a5a63c5c2cc002500af8c. 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/ART340900204.
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 0x7ea4d54050fea94ae42550c0683be0b28177de41568f0c6c46022e10f3bb02ab. 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/ART340900206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e2d54d153f30795f6ab599bba326c227e2f8fd3df1391ba07aed52b55bc4d46. 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/ART340900231.
Greatest Tangos Y Valses From Argentina To The World
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfdab5fad40b2eb85753629a4753b5886a0a5d2a4cfe011284b276c6ca48cc54. 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/ARF049601761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb459da0cf15c391cfaef8c73b5976d12aff0855bd74568af8b9b19956ae28cfc. 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/ARF049600015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa35f57bf805366a5b833c06a93e814b907540eb718dfe80da72d222ecd12f50b. 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/ARF049602234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c491459009c7816d8f9ca2d402781ae7d888bb732782cfa7d5d2607cbfa974d. Chain 2 (Bitcoin): anchored in block 960463 (2026-07-31T20:42:35Z), 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/ARF040602725.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff5f16c553666eee7d89a06b238e16b4df54f1a7cc025c8735ec3811bfb239a8. 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/ARF049501957.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5aeae5729259cee936565bf86a6dd465b9345479146c541f121f6c19b7f3c908. 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/ARF040603401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x071c8f6651c38c1255ee391c9193269692f005b1dcb3babdca1faa23e324b466. Chain 2 (Bitcoin): anchored in block 960379 (2026-07-31T09:25:34Z), 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/ARF049600369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbbed6ffab3169db36ba779eba41c94bd33b991240f1f8341faaafa67f8f5940. Chain 2 (Bitcoin): anchored in block 960376 (2026-07-31T09:09:19Z), 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/ARF046700030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecbafee72ee4199e82aabff5162ef753f9928ba61fad4e18e31fbae0d7921a3b. 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/ARF044300007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafaaa69a995db1bc2c4b0f573da1311bfd32a2ee66a100fd4a3d821a9164e99d. 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/ARF049601960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x024c06b77c9a0cd6918fb14b83ce6c7c7bc3ed125c3f815b935fcb1cbc9cfbf2. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/ARF044500013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c43dd362cfa76f2ba506ae31fabea88f6dca8815260beaa6a6854b18cc1f399. 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/ARF049400050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc95b2cab02e301b477974af2ccede49be2e6cd57f79453bb5109ed8cbceff558. 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/ARF049400019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa20bc27fd476478659293e2e27776cfeb64ee9be9446506acd0034e06ce2e3ef. 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/ARF045100009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cbe72638f430413d8fa3f2b1d0e876f40af83e2966e8a0f3aa70c8eb954c88a. 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/ARF045100006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96a45a8e96655502312df3b8fcb04863fe49adff123abba1c58dd0a3cb25a0b9. 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/ARF045200016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34b60405cb7d6c0460898451dbe26de8984f7e6620532172fb5f093c3d4b0f9f. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/ARF045500007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dd84f136f215530b2d9dffcdd1e23e17ce228cc8c6590d1502c91c7caafbc5b. 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/ARF045200017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd500d8f44f1870af80e148d9b4a870451c0d3119e2f1c80538212e7af6e4424. 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/ARF045900011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72b9026f860db177c268d492bf865f19b7786d4e556857878cb6d0f50220db2e. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/ARF046900002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24635648f5a4353e08584d920c726d94025313812bf7a8770a0d2f2c5f3cda34. 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/CA5KR1705729.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18678e523b002020f2f3d4fecf19444add69c57250bb870d0ee40b43ffcce067. 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/CA5KR1705734.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17e9041ab48f16f50860d6c8f11cde675f5cd6e1d56bb99a9089f697a25f65a1. 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/CA5KR1705735.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d6c5f03e99c6e332d556791fae6010ee38b47440366b72838e60fd94c21254a. Chain 2 (Bitcoin): anchored in block 960198 (2026-07-30T02:21:55Z), 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/CA5KR1705737.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8f85550f32f14b0d5000ffceae6d61be991e42cf3a6fe6b45513d3e1f042827. 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/CA5KR1705741.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x530ce40890cdb702545cec57077ff3905cbd91891fe813bc281b1f665f2bbd54. 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/CA5KR1705747.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd22ccdee9a929df83b01161e8569f1510e94b1c01fa9715d46e80cdf7ff694bd. 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/CA5KR1705748.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ea0c40f9cfa21f42cd4c479d31cdfaf0036acdd16af4cefa23fa6d57de88d79. 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/CA5KR1705759.
Argentina!: Tango Legends from Gardel to Piazzolla
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d9385f6f8f2a50f42cb155bd41d54172a3bdd1b4da1534e3ef5e3923d530f56. 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/FRZ333103020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84ac4c71d76b0958bc4a9f95608e07a7e8c8a6cf1ff68373506dda44a1689c3d. Chain 2 (Bitcoin): anchored in block 960381 (2026-07-31T09:50:11Z), 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/FRZ333309050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed8ce2d204366b64a495d2fbee52a98e280e6256007b1c5aafbff95bfed0fa90. Chain 2 (Bitcoin): anchored in block 957039 (2026-07-07T12:58:18Z), 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/FRZ333103070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe415571accb8360d00be6741eadc70257acad940a2129033c8f3658e279a6c09. Chain 2 (Bitcoin): anchored in block 960330 (2026-07-31T00:58:21Z), 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/FRZ333309130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04c42dcd4cec861bef38f7601269dd84f9718cf3dc9e11aa3286c600383d6257. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/FRZ333309180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c9493cc2f67fc91dd21a2cb799646bf3cffbf6247064701fb07763c135f8848. 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/FRZ333103200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a276d76112847e52ab0eec2fa7ed64761070877a48e65a290b125139612b77a. 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/FRZ333103210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfec3d3cd6b90bd5fe4b7ad67b2e2a144ecd099cb1f846d7a8dc95c70c2bcb2d9. 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/QM6P42374943.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74c6136a545eb68f4fa3c771c883a4aa0cf958bf86d948187fe0144ed4c24405. 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/QM6P42374944.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6cb3036237cc3469ddf5f8889caa2e5dac448c3678194f0cc164a44d29646cd. 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/QM6P42374945.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2373c65fc9e884e4c81d653fef9d757b8b1383015cc74dfeef84e8b65f2496f. 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/QM6P42374946.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x106157c7db67164f245ab1a315ed6a0808207cc919c966b5f72fdeb9f3e33db2. 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/QM6P42374947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a3b487808ed8409a14ffde34620d8fb6ce8f0f0fea35b07e2db06e332eb0a84. 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/QM6P42374948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21bf47c68228a08269a5647397213a0d4f6c89c7ddec4e2e666c0f6bab1246e1. 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/QM6P42374949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61cf5e8b54f3c1eece0ded1e5f8ef4b743fdcab530a9703b8d2aa856bc7cc16c. 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/QM6P42374950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37c16b053cd61b343ed4088fc9d842d23beecf2a733d4fcecc211c6ead5e2245. Chain 2 (Bitcoin): anchored in block 960489 (2026-08-01T00:40:43Z), 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/QM6P42374951.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4919e845409007f9e32e714b3beebdf15e9ac94b0e517daefde061567de31ae7. 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/QM6P42374952.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9db8b27070e7b349e04f536ff5645ec3a61962fbecbb43e1274ae5991d431d61. 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/QM6P42374953.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc72cd44b63c3a7ba41d9295c7a78cab3f23dd3e0f1136ef914f4ce2e8f4185b. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/QM6P42374954.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0ed6cd71eb0e240873843d33fa2b773b5c2798e7d1f8b3a6d6741ed5f1d6c45. 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/QM6P42374955.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7abe64c7f2a738e15982b209e679cfdbf4070de0f38751ffeab77c239944aa05. Chain 2 (Bitcoin): anchored in block 960456 (2026-07-31T19:53:57Z), 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/QM6P42374956.
La Fonola Inéditos / Orquesta Con Cantores
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4999579b8c0bc52a980991c3246588e98083f8e4389c63878a0e8835ca93ebe0. 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/AR8L71300480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17f0ad96edf2453bd96046a7a7f157fc681fd5de5048243eec3180bf7a3ccdd9. 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/AR8L71300481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9f6e3796c419da100d32d756ee191a9b2667f7c35eb9edba71b1a8e5fa93a9f. 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/UYM121700973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5e25416c46a80e7ab386b750f8f024176df2ad553ff010d41ceb0d897804c7d. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/UYM121700961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf587b5fe0ca0b0ecf874fae7255e8386235403e0795d7908da80895bace687d8. 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/UYM122201180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfce6b95a738361a3e3895ed9759ff742159c638eb79696016814413eeb7b0ad. 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/QMFMG1390243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82fbaa4f7f146d2e7b93c10cab80ee05619e70aa7bf4783497578cdf2f36e666. 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/QMFMG1390252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc43d8be4310049e042f57dbc58277ece4881407b63bf7d854e7d46b46380d095. 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/QMFMG1390261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f668467ffd94a34b7e25a51e8ac0a29faca06f2274f16aa71b0462d41b225a9. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/QMFMG1390264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x954dcb219c01eceaef7369048e2829846d75dc10125e41760ddf47997635e843. 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/DGA062317333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0826ead790e41dbfb98927c3067278e26e7ab4efe1c9c9f9c2929f4c4dd775eb. 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/DGA062317337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba87a81aac7372cb550317b3d90f12a5691c761135128ea6f84b80d10ad8b80f. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/CA5KR1705695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33c2d1401045b51be7e2114ea01747ffc45b0ac238b1ad978c297af638f35bcb. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/CA5KR1705707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x123abde179669546cbde72aedfcb9b7aec7da42b352a6b4b5f0619231308f6fe. 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/CA5KR1705710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7d7c7381a34275581ee4e8cc1284279701184e1ee7448b7d5a339987155a2a8. 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/CA5KR1705686.
The Roots of Tango - Jewels of the 50's, Vol. 3
The Roots Of Tango - Jewels Of The 50's, Vol. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e686633d56c0c817fc6b5b7e5f1fe1ef923fdeb44f59ee33f66f8381b43b7ff. 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/DEXO52482765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f512332c6030e7e2ea2597171df66bbd7062909afcc2881afc0be17e8f55646. 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/DEXO52482766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63d0874a4d23e716f8b5e18350b2e035269382a069a9a76c75643eaf276847b3. Chain 2 (Bitcoin): anchored in block 960185 (2026-07-30T01:32:48Z), 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/DEXO52482771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa69d80ce7e876efca82792f7153020195e08c9ef9df98f32683f99b709e0818b. 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/DEXO52482773.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f0f22ca2294f6aa3ad3ec4bdf04ee459a419ec19e27960580f8e93eb68013d7. 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/DEXO52482782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfb4a78208bc4a7fce19c408fa368818ffd15e9170236d258625f504f69909ec. 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/DEXO52482789.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9aea9f3bd9b0eddd923a9d56df82c944cb146dde2bc1cb577982a0cf81b9a7a3. 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/DEXO52482793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9ad86189101b3bcf41720dc8b8e1f8929f4455bfe11e760ba234aec16b58863. 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/DEXO52482797.