Mazizo Musical is a regional Mexican band formed in Chicago in 2003. They specialize in the duranguense genre. In 2006, they released a single called "Loco Por Ti" by the Mexican singer Marco Antonio
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90e74a089f196c8c5d8d70f5923fad38b3e26e3fb7542bc4439f4016f7e1cef4. 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/36613778-6d87-4c4a-b0a7-64afb6b2d72c.json and https://artists.proofprofile.net/proofs/artist/36613778-6d87-4c4a-b0a7-64afb6b2d72c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38e8393a6a10d691811d05cf18f9eccfc738be50eae3df91197e04ff419bbe27. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T20:12:32Z), 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/QM7281896535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e2b357fdb4ec735a246705bf46595710a404c673d22e2cab8bc9d73b15e2b9a. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/USAPK0400015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4b461dd12c604c7870ad41ece0ab8a33cc5eadbdd6024e6ebdd9f89dae6cc21. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/USAPK0400016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x865f6e4e7af85fd81ca2237f46c5ef89614a7e81446806a5157094a7a7c3e6d4. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USAPK0400020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ca0b85408115cc1abe7ca659751a17b4a2ca5519352051befa63a6262cd3554. 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/USAPK0400021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5e18e5c62a20949b6a5aa28c6f36a7d39eec367dc3e488e7ce203873db84e83. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/USAPK0400022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87616f34d1ab45f12456a76f93c6967484e430296efbcb5dcfeb520f1a73f490. 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/USAPK0400023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ee5b9d91f2796c6a4ed5fbde28c35d844ba994601e67b4b05757642e7b0ead6. Chain 2 (Bitcoin): anchored in block 958726 (2026-07-19T11:47:20Z), 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/QM7281896319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebc455786e6cebd78cf8f653e6c7b1145503237fff401eb08b40da751f54bb84. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T23:47:39Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM7281896320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08339ce720c13870934c46bc94a5f70a8fcbd279b8f34c69a15816bd1fd822fe. 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/QM7281896321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15f5505b64a4447a809bf6c47837110530d0f5e2d224a4cb6b21fbc664a6f446. 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/USAPK0800202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe8067e1cfd4b4d3d41d79effe34d4a77d4feedbe9e566a68c61b89f03f45906. 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/USAPK0800207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b6d02e87625c90c1b63d06bfe844c06d2fcf0393169de30fa467c9ac709fcbf. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/USAPK0800208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f48ca187f51fca01c1324cbd8652f316780fb05fd81c57506395badc02552c6. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/USAPK0700149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51f3c73c69755a343802c69a32a96c755c76335917a50805cc3801f81ed23ca2. 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/USAPK0901049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce09ce46055e4c8355ebf4dbf627f8ac680d1583d1b7f56b15f707615fc16418. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/USAPK0901056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf6cad24eff375dd663c3999d1e34f4d92ecb10eefb65f7557b7c93d03d74164. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/USAPK0901057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e3740cdd83212d04d5ad1a7955fda5ab0ae5e2d33e4bae5773630a234fad39a. 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/USAPK1001235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x167fec14cd81679a037f33307093dafb439e3bc4e075f3007dccf801643f838d. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/USHM91891130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67ec480435f5c0057972b690f841b080c1578233ad99b4639a80dcab95a42ade. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/USHM22073406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cff964e453cc4c18a0afb3c293662bd85b420d1be070fcb9418462d05d45ee7. 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/USHM22073413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79d5076991593508f78c5fc2e886b970101a9d13ed4569756c14b229f17b2560. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/USCGH2239596.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ad661f15c4661e9f45a9a93aceeb28137ec892e0f5805926bc10bf888be28d8. 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/USDY42200951.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40459cd1c281bd5cedc5aadbcf98ef0ad08ba75db0eaf6f04e6b67fd27224154. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T22:02:19Z), 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/USHM92270695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6994149e02e86c8b0e463ed751c1999237351b357e32681c8711514ae97dd698. Chain 2 (Bitcoin): anchored in block 958075 (2026-07-14T22:55:31Z), 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/USHM92270697.