Ricardo Tanturi (27 January 1905 – 24 January 1973) (nickname: El caballero del tango) was a piano player, composer and bandleader (tango musical genre) in Argentina during the Golden Age of tango. T
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 0xc896bde36921a898bdfb608657a13f6c96f17ef5042c3e1354be260c079b27e0. 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/88124d6f-9436-4937-9711-3113b4a0eab8.json and https://artists.proofprofile.net/proofs/artist/88124d6f-9436-4937-9711-3113b4a0eab8.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 0xd4a877af6122b71e3ee77edf68c52d701a9de24fbb56bb24223ae57d2bf7c5dc. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/DEXO52461741.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd10edc0662c6dc8f8d76af6fe6128ca21f9b02344331350f4ac4b72845629c5c. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/DEXO52461750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7db301ff5c695fbd59a12c4e3fe3accccf3d78c0a04d8f9f67b8e585cd536bb4. Chain 2 (Bitcoin): anchored in block 959084 (2026-07-22T00:50:00Z), 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/DEXO52461754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4d2058911d2795b910c3a783d28ca4184dd548866b015d8c760e9dba997d114. Chain 2 (Bitcoin): anchored in block 959051 (2026-07-21T19:48:03Z), 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/DEXO52461759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38483e8969c54b662b840e9a975ef87da8b75f6dcf1958e1cfca559c56ffd4cb. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/DEXO52461777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bc44b0bc3b98177095f77d2b910eb16ce80cb2060b7076c4efe02ae72bdd6a5. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/DEXN82256420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccf2d1f5dc6b1511c8a2b62d2c430667325a9786492460219a1e4d0a49442147. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-15T21:23:21Z), 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/DEXN82256421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21de8c210c748444e8ce34eda6a59a37a65f4c227d08cf1effb150000eff5d62. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/DEXN82256422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x007e3b189904069a736f8106edaff5aeb69d97c689adf445a7814821a64c814c. 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/DEXN82256423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x867ce52255db7fd1f63e846e185a842bc0931f6d10c3e7ab9120313067f988ea. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEXN82256424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b2cd4838de53f3aefe09ff85180c596c28cf81f3bac243586387e94e0337af3. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEXN82256425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25705879ee0fd41c228b409380711c3af0d1f5835d17aa9a62d66b4163516ba9. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/DEXN82256427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e6d1d3e43867d4e6b468cf0d987539c22d5ee5bb81c153bf7878356ac31d6f2. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-21T21:34:21Z), 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/DEXN82256429.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2821220dc9de698962f6cbeb924c5022ba7d2014166a26d62f0597352d0cd988. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/DEXN82256438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe907288e5c0c303de8c370ce4beeb608d14677274c0caec260ab5cdcaa07223e. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-21T21:34:21Z), 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/DEXN82256471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x684ca3b14495442d708ec5c6dd91a6b61230e0b61377dfeec4eef4041e30e5e7. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/ARC620800085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7318d7c873fd22242c54b515e87ab804328fa7a8c8b0e1988103efad13635a8. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARC620800087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5c48ff7e26f6f4d7d6fa919424c56a1f8ef7fdfb514a937befa7756fa32f99f. Chain 2 (Bitcoin): anchored in block 958329 (2026-07-16T21:48:38Z), 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/ARC620800092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x630521d016f9ad3c45282555c9353060d6473e4f429ca8bc98e0b048615009be. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/ARC620800093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19d194e51536bb331c840fee1ad66e9fb1d646b4ba643dcb310e772b3b61ee7a. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARC620800094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa46d9724b683d7ac8e8e204b024479b5a15c326e6213753bae79ff2b3986aed7. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/ART340900947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x087394b86659eb8799345154870a3f814625712c0732ed86d088f7711ee0ea29. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-15T21:23:21Z), 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/ART340900950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7708edb81eaeea9ef4284e02938ac3b4f18f369d315951a3aed2cbfc8b1f0708. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/ART340900940.
Ricardo Tanturi y su orquesta tipica. Los Indios
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecc33d33367179bbc7375c02502e48b02451e7179a6c4fb4c2ceefd4e1905a09. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/ARG991013232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9179ea9c1f3fb4ad467c62598eee908ee77e98cb2ce757ba8f7ebbf013df3af0. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/ARG991013242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8c2c52e76aca81098c7db3b2e63cc1b82e8f67a1f0e25d5df72516137ae5cb3. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARG991013244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb59bfcb33e393ce0780aa4e5ddcaea2e98cfbf6c98403528abe2567db151ca1a. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARG991013247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc88173a0ee0b5cef759a34872f11a12193b31c15ca547497f8bde930f3a4edf5. Chain 2 (Bitcoin): anchored in block 958401 (2026-07-17T11:10:25Z), 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/ARG991013248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf22e3729172592e4331e6c7a0c3498328c9d7baf038f1cff8d9058df2e4bd603. Chain 2 (Bitcoin): anchored in block 958573 (2026-07-18T15:49:54Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEBL61230334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad7890a041d0ff3804e090af486c8d4a6beb1170d4bbcd2b7135101a57531909. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEBL61230339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2eff2ce18e1f923af486a3c78c90ad15346bf9179287dbcb689a0435cdacae3. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/DEBL61230350.
The Masters of Tango: Ricardo Tanturi, La Vida Es Corta
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde0a5409b43747b49a66903cbc05a2c9b528abf77f03dede6a3fe31987b09b9e. 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/QMFMG1421667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cb98e88e2fb331a1bd49b866f1f4f871ee423f781cc9ee890a9ced6a602e65c. 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/QMFMG1421668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x921e4e8b9be75100077ad14e906edc385e6f5a0ade72f614c88b87be7027c214. 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/QMFMG1421670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe121ea5dd4c005c5d00095f8f041a7f7de2409a14a0fd2c0930aba8d0159a188. 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/QMFMG1421671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05f745b43ff8e9df998341dceecd016d587f6554456cf828e8a98223b86fd242. Chain 2 (Bitcoin): anchored in block 960503 (2026-08-01T03:41:24Z), 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/QMFMG1421678.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x163ae02431a6cbbc0c83f2cde496089495f99fc1542f3232d7590da6749aa35a. 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/QMFMG1421680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81d0ec1cb67d8ef9da9602aa3bb2250ec0ca2714950b307e066be8039dd2e0ad. 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/QMFMG1421683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x747ddde6a9b7935b03b1a62a5ea0bcbdec6409a16051eab1e9ee801c9d43de5b. 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/QMFMG1421684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67381cdc6cbe90ffd77abb855d30292dcec3272eaab697c44ab6681b3e3a9efe. 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/QMFMG1421686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d23917b0d7cdbdc42bdde67385de891529ca5216a39c6c5e0f5df4ea33cc2b8. Chain 2 (Bitcoin): anchored in block 958903 (2026-07-20T15:22:45Z), 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/DEN721506888.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fb63a49e9eb8127d7524879e2d93eac6195c12dbbf7e4065f94197e12d51ba8. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/DEN721506890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9722c54d930d4e28d2ea79ea97b4e70ca1afe216e5b38643f717aac4f1d4e57d. Chain 2 (Bitcoin): anchored in block 959051 (2026-07-21T19:48:03Z), 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/DEN721506892.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4acd075b927567650227d8c1501497e40e2d0956eff7da2665fa7c63a0068c8b. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), 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/DEN721507174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb1b7df09c695260a1474c0b264454c78da46dde9591a8085912e8cae1eb8498. Chain 2 (Bitcoin): anchored in block 958329 (2026-07-16T21:48:38Z), 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/DEN721507175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fa371b8b90afcd427b3de5b6c042f484c8d402774d91e3f13b75efc6d8cbfcd. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/DEN721507176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66f04afa9206843026427e0e0b5317e839c86cc3c58b2b80ef7d83c1384e454e. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/DEN721507177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4958dc74f51b92f2f82f71c74022ecb28558f078765412f887fa1d0a1b015a68. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), 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/DEN721507179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52ca368abc1cb94fd801a69d42a44e25db7a127880179a9c3aa499960e29dcb8. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN721507180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccc70e5d530f3bbf40cfae6fd21e60d674accd8ff18620d51a8551315f3522dd. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/DEN721507181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd8294f2e4d4d41c60e2af16a84c1aaf76d3c6d1b9e3d88b861320c9f957cd8a. Chain 2 (Bitcoin): anchored in block 958329 (2026-07-16T21:48:38Z), 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/DEN721507182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a076698418f7302eecbb17e84ff726748b53dc0c22b40eee6d1e348a471b0de. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T19:26:13Z), 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/DEN721507183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9fd400ac865965cf311a25345adf0bc7a7fd1282e7554e60815264482ea1a28. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN721507184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x499d27468c0d523b9bf0d5ad55bff836631d5fa8a15bbb93451e14e2d43e8b3c. 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/DEN721507185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0404d918c10b170356b7b3a0a294cc5dc4366d4f88b902a35fc181907ffa55bb. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/DEN721507186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fa80aa9cb90a27f9539571abf020cb0b8cd2fc158fc33317bbe88c6fe794a4a. Chain 2 (Bitcoin): anchored in block 959026 (2026-07-21T15:38:13Z), 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/DEN721507187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8323e54b6d19886d3be646959b51c197960b94a1e7a5951d8b127ec6efb489c. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T11:08:30Z), 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/DEN721507189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf73ed547452931b55e80926a76da48fb38364871221457b96efed45e115033f6. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/DEN721507190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f07a16bb3b7ce49ba8bf84c52ff1bdce3887766254d12fb2ddd9a2ad5da3f57. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T19:17:28Z), 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/DEN721507191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fb57d8956af142ea401043c1c04b17f3ba3e37ab5c7c37ce32ee91cd486bd93. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T18:54:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CA5KR1838625.
Ricardo Tanturi y Su Orquesta Típica "Los Indios" - Alberto Castillo 1940 - 1942 (Restauración 2022)
Recuerdo - Buenos Aires 08/01/1941 (Restauración 2022)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6b5b34a209758032148416939db1b190d0285fdb7967dc9e86099e66ad38515. 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/ARU8P2200175.
La Vida Es Corta - Buenos Aires 19/02/1941 (Restauración 2022)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44cc29bcb2235b06b906419a86ef685cb0bcde24de5467c6680db3c71af8f52f. 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/ARU8P2200176.
Mozo Guapo - Buenos Aires 19/02/1941 (Restauración 2022)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcbd700fbd50e8156761027b38295324e845506b8aa45c4b449d5fcd797ef736. Chain 2 (Bitcoin): anchored in block 960487 (2026-08-01T00:15:43Z), 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/ARU8P2200177.
La Serenata (Mi Amor) - Buenos Aires 06/05/1941 (Restauración 2022)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ba47bffab35a1134c4700b9e566e1b595367dc34e823e6cf159774088da7dab. 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/ARU8P2200178.
Pocas Palabras - Buenos Aires 16/06/1941 (Restauración 2022)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2ae453a0f562b27c685e24bc2b0e3f75898c0745d6d32d8387cca15529ed802. 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/ARU8P2200179.
Noches de Colón - Buenos Aires 14/08/1941 (Restauración 2022)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7864041a73c4c756a9356e14efbcd48c020eda1ab65d74c8459605a4355826d7. 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/ARU8P2200181.
Mi Morocha - Buenos Aires 18/09/1941 (Restauración 2022)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfd355c9bcbd5b3479e13db6fc4bb7baa8d6fa53c555f5a9daed0d9bde676eb2. 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/ARU8P2200182.
El Moro - Buenos Aires 27/11/1941 (Restauración 2022)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96e1ea9c943dac8828eba599d98e3adcf621a97639068277141686112aadae6f. 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/ARU8P2200183.
Ese Sos Vos - Buenos Aires 23/12/1941 (Restauración 2022)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x996f077626fc22406dbabe98e3ad4d46485e86ca1e909b03722640c41121a1f5. 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/ARU8P2200184.
Recuerdo Malevo - Buenos Aires 23/12/1941 (Restauración 2022)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ffb015fe8dc7e00fc0da89abd78a4b501bd89f728c8ce452017df01bc8c93ed. 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/ARU8P2200185.
Al Compás de un Tango - Buenos Aires 18/03/1942 (Restauración 2022)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb59a02c64472f590440a0221938ad7922900382aaa8b28ffc77832c79fbf4670. 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/ARU8P2200186.
Madame Ivonne - Buenos Aires 18/03/1942 (Restauración 2022)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d9c556fbc317cb224a8b716aa2bd5905bf0c6fb46531e45ec51cdf3c59618b5. 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/ARU8P2200187.
Decile Que Vuelva - Buenos Aires 27/05/1942 (Restauración 2022)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4659ec54d16d05e6fcfb2ec413561295ccbcecca7eff22591d7efd61a5a2bbc8. 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/ARU8P2200188.
La Copa del Olvido - Buenos Aires 20/07/1942 (Restauración 2022)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96355a274cd7a346fee1ccc8450a0dbb3bde4f1a41c13300ca2630d03f99509d. 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/ARU8P2200190.
Tango - Buenos Aires 20/07/1942 (Restauración 2022)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2f03ae7fd19079561af2c6a07909287086c3a29c1eb368f740a4cafffd015c4. 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/ARU8P2200191.
Domingo a la Noche - Relaxing Sunday Tango From Ricardo Tanturi
Ricardo Tanturi y su Orquesta Típica "Los Indios" - Alberto Castillo 1942 - 1943 (Restauración 2025)
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.