Nosequien y Los Nosecuantos was a Peruvian pop rock experimental band that has experimented with different genres and styles, from rap and reggae to Peruvian waltz and ska, and adds satiric elements,
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 0x27a51866d8a8d0047d1357e1883e0d2b847aa305616a7b7f231ea480f09408a3. 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/0c59f10f-f9e4-480a-8f72-20863dd9d638.json and https://artists.proofprofile.net/proofs/artist/0c59f10f-f9e4-480a-8f72-20863dd9d638.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 0xd7fb86af2afc13d6940ffc2717fa23b804e126f3d80c4371383f8285ac4c5808. 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/ES71G1705626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x063ff00c612eaa61dbb07d07c80fe04de501c1aab2b262fcfd74d7ba3de9aeba. 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/ES71G1705632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a62a381e03c65ca833bed239f6bc982e2113ec649a08e5624976fd4c8e9a7f1. Chain 2 (Bitcoin): anchored in block 956637 (2026-07-04T10:56:23Z), 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/USX9P1235543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa90e343a0aa5b2ee11f4bcf2d42db3090e4c0ca5fcf8212bd1a2242bc0b6f91f. 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/ES71G1705641.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7881f5741836ba7c9de16cec1ae2df4a80c9615e97146ff888b5b8c2f9d6fdd3. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/ES71G1705644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa54a659525b0771c8400a79e6c2980014e303e88b4cb5d6fd613a57e5c341fb. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/USCGJ1384134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca8dd87cfb2170c427185955a1b310149a10b984d4625a659be4dd69eaeae09e. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/USCGJ1384137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03fc7cac532bb5be61ca4991f0645cb2739745d6989ff0b82495b50e6f59af7c. Chain 2 (Bitcoin): anchored in block 959073 (2026-07-21T23:25:37Z), 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/USCGJ1362064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92e3a5dff3869cdbbefcc9cc3e8407a8e4f75be23fce23194738023e00e7bdea. Chain 2 (Bitcoin): anchored in block 959073 (2026-07-21T23:25:37Z), 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/USCGJ1362065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec678e9c7a6cdfb0dce74a88f031242b38b1ea3dffc110823699c6318363372b. Chain 2 (Bitcoin): anchored in block 958504 (2026-07-18T05:41:32Z), 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/USHM21319433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7713e9524f220fd2ac6cca87598799c09d52a6a9b0fe0d107d3317847a03f911. Chain 2 (Bitcoin): anchored in block 959091 (2026-07-22T05:09:55Z), 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/USHM21319434.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x660cce4567dc5e2ad0248021c2734b4f1b304dbd0e911cab07ee1a175f6e5704. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:52:36Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM21319440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07ee488f551c1fe35215f52610255342c1c6de99a4b9d96624360bddecd346c9. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/USHM21319443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef8d2478540fa22414ebed51bf682c3c8b85942af91538c1c0fcef42d95be514. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/USX9P1235548.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c0ad957c795b6abb64d4175289fe07b8bc442016098c89e507f99b236583774. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/USX9P1235551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x171e108d09133facdd8385cf17b1b19554de60d798cc85dc66883e9c13442c7b. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/USX9P1235534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62511a7045a59e774a1e7c4ee29619d3f0f83956b7c8c23d6e6ce91a39fce23e. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/USX9P1235535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56dade76ccc19fafd7557977febbc09c7f4554f4d451dea78bbd66d832e6c469. 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/USX9P1235558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee3f459d15035f88636ca7f02ae6e7f02191a39ef33819f46ac39e6c25658e6d. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/USX9P1235559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1158ac4fe74919b3458d28d864adf1210352ccf269dddce6b1acfe558cd3d22. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USX9P1235561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bf9faaf5184422495d10a41404b06471a694f80f3312122d6d3f4d8bc6cb24a. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T19:58:24Z), 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/USX9P1235541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfba29d6309b5bca37f5edf2e3dca8f705dd1945e31f6c348080eef725f05bbf0. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T08:19:47Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USX9P1235562.
Monstruo de Armendáriz (En Vivo Barcelona)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3477734a89ea7aa95d9473a51d563381e537d33c3be8a0de1585041d5e67c2ab. 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/USX9P1235565.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x331f1b63f3c0862c8bd3f7cc95cd61f3268a4fa9c0e9d7aebbe73308bd16ec9a. Chain 2 (Bitcoin): anchored in block 959065 (2026-07-22T00:43:36Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USX9P1235545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1712bf43e29f9e6b5a0269555c862b3ab84b4d4c3b4cfa1900d513448d3fc9c. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/USCGJ1361551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x434c12159aa0e5292eba4a7577c68d79e7affba5607ff492b3c4cca0c851b104. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/USCGJ1361553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb6f17bbee531717f037a4e03be5329700472c1b592c907473006b8fb563b1f5. 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/USCGJ1361556.