Hugo Blanco may refer to: Hugo Blanco (politician) (1934–2023), Peruvian politician Hugo Blanco (musician) (1940–2015), Venezuelan musician
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 0xf5b1ad4d19bfef4ad844c309d47d2395ac8d68117ee3def1745d2f4e44a45c5e. 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/f13f3006-8724-4a70-b44f-9e09f2a83a30.json and https://artists.proofprofile.net/proofs/artist/f13f3006-8724-4a70-b44f-9e09f2a83a30.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 0xfb7f4c2fadf00cf496335dba84266133e5d9497a76d34f52178bee55e0c1dcf2. Chain 2 (Bitcoin): anchored in block 957544 (2026-07-11T09:08:48Z), 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/QMFME1577058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b62648e199aeda9406648df6c07c158e9107f9f2c066341e15b10c950389789. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/QMFME1577062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa336606db887d15d8939f1e99666c6448805fb2bdbe636215c6979b1b638aabd. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T12:03:04Z), 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/QMFME1577065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd9eff4fa7edfe5edb0aa80828454f87eb3b5857b5dad9a836bf15c2094c1085. 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/QMFMG1505010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4afc160943addd1336e0b1fb55f618bc74838d1ab4c01c9acddb772ac56f0306. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/QMFMG1505012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75b1918e9bfbf5d4aa8400485f0d85c47d8f499123d6d58acb508865874ad67b. 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/QMFMG1505013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b62e7bda7d3cc06467f54b026dfd54c1f08ded6115575d180159717269091b2. 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/USA561068156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbffdd3c722728123805485f3e4cbc7c206cc9a1338c17abdd51b50a93ef45def. Chain 2 (Bitcoin): anchored in block 958582 (2026-07-18T16:47:25Z), 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/USCHR1302797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x810f2051f2093d7b6afe9ddd114df708ed4bcd98d1ccc8cf64a738f8d697ea7d. Chain 2 (Bitcoin): anchored in block 958538 (2026-07-18T10:30:13Z), 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/USCHR1302777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e1240e77634c94c84a3cbde73e72afe72211c8ee61daba311e1c8a1e0187c84. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T16:15:11Z), 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/USCHR1302779.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc634dab117cf8ed8133a4e1bf0fd850182ef68b4c87cc615f4e9ec0935f974b. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T05:50:22Z), 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/USCHR1302780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc81682022f98667ace8cb649a9f0085801867cbdb18315e5e691b7bf0437e527. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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/USCHR1302800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1aea129c547a8f541d1616f7c56a26a11a192122d165731ff6abaff12d76ef8d. Chain 2 (Bitcoin): anchored in block 958920 (2026-07-20T18:14:22Z), 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/USCHR1302782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81a3b7643110633a8e6d4f8ebde9f9adf5df11c2c26d3aa408ed809366a696a6. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCHR1302783.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cd289d0de091e12599feeb2a24286ceecc88370d1ad0bdc782da4199d49d53d. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCHR1302786.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb22b2edfc062407c1b10242db06b0331106bdc57f2fd3431360be5018cfbc91. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/USCHR1302809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d2034943e3f844fd3b79ce94176ea440a42face54b6dd95f18e554a09d9a6c6. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCHR1302813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1c5bfc80a9d6e0a3c27f1157f0e1d47601cd4a63d08861f10df0e4bdb7285d9. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/USCHR1302814.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87aca87739d5aebd570732626f90811c14e18d727aac83c1450bdf87f92f7be8. 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/USCHR1302815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadade179619116bc5d05b11ca5da367269749846a03498c662e46f605953316d. 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/US6R21227861.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d0953c98512cf6ec84e9d8133a836f1709fcaf10e4610ee57634abb73094049. 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/USA371141116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b162bde0415e1b57c562a9d04bbc2efe6bd3b8097e3ff09f7afad5a4900db5b. 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/USA561069113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e3e7d6bb2ffa94f3ca97ccb5ed3885438d6573e7615719dc5a81246658efd3e. Chain 2 (Bitcoin): anchored in block 958474 (2026-07-18T00:59:09Z), 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/USA561069023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3223d68c611855ddca3e788844594ef9fe2e7da7362711f0644ca5189a586053. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T04:30:31Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA561069015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa89cf1a63a21a89fa7f4beacb7bb55c0ad478f4b6fe7244b04d8a7a9dbf0d628. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T16:14:34Z), 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/USJE61611129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b9cc7001fdd14787f72cb876b017cf8b89b4c5be20b72614f9e2e4d168c0f28. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/USJE61611132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf59224320050128ef863c4a14799a3cead84dbc4a7f4194b8c2ab22971bf1dd2. 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/USJE61611134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6102bb170dbb4d4864ada53ebb13b723a5cee67fb81adaa9d6fc5ecaaabcadf8. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USJE61611135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47d7e3c316c21043affb7b2b82767bd45489c0a999bb7971233c980df069054c. 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/UKXN21913163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0860f72a1f29590342dee4d374f8035a5f186e70c99548a8710c5c368d8a0ded. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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/USA561069133.
El Humahuaqueño - Caballo viejo - Moliendo café
Plácido Domingo - The Latin Album Collection
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32c894ba82cc0b6ed6f067d64ea3b7bebc7c852f34b09a135063527eddc8446b. 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/USSM11303184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e3e7d6bb2ffa94f3ca97ccb5ed3885438d6573e7615719dc5a81246658efd3e. 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/USA561069023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd178a38c5c60c81e46567f62336d95b9143a67a05ec755eb1aabc9c34113a271. 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/USA561068968.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4862153f948c7819a9f8ccd59c9e4dfcab6c59f20e559de25b6dd5405a61fdf4. 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/USA561068983.