Alfonso de Nigris Guajardo (born March 3, 1976) is a Mexican television and Internet personality. He hosted various shows for the Monterrey-based regional network Multimedios Televisión. His brothers
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 0xe19fc84a2c7bce97d2863d7dadd0102af8b311b6d0386654b3378aff163917a5. 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/bf6ebd4b-95a0-4e33-b026-0b861463ec24.json and https://artists.proofprofile.net/proofs/artist/bf6ebd4b-95a0-4e33-b026-0b861463ec24.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 0x3bd701c025c509bea816605b3af5ee4a385b30dca1d5472c1d07dd690fec2503. 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/QZHZ31905628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4815b379200e85a5e8992b582bd7a42c2703a2be23736a379938ef9093deae72. 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/QZMZ92046224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3a1f61c358b7936a946fa3be284b05aa37b182f29472c76aa926c5ec682e11b. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/QZNJX2025059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdad556fb26905575e4271ad9fa6af94d4160d4fe2eb38705d6f91bea12ee79e1. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T15:00:29Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTPX2191360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1724707cc6255f71844411f7253c8e1c49f7561c994abea9a0ddb1ff55e0b4df. 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/QZGLS2289532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae0b0b04b9c3bc1f5fd58278d351e0112a3cfa24039dc342e2fd79e764c5677b. 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/QZHZ52261143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76cf2323bf88611ab727c004f49be98e923ee9f3264b86128bdfd16cc3459e37. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:35:44Z), 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/QZW9K2366627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdef590cf914f135094e458705a4ba0e68e7e5db078308f24e0d9c01bbe14be76. Chain 2 (Bitcoin): anchored in block 958832 (2026-07-20T08:18:43Z), 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/QZ5AB2461213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8b9df04b4648fe7d3a8416c36826f822f5ecc80502800f4292f68bd2a582f5f. Chain 2 (Bitcoin): anchored in block 958395 (2026-07-17T10:10:33Z), 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/QZGLS2517272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6028d25f9b8a9d38b8d930929a4f57a0bca6714202859e7c6e65ac32488d200. 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/QZXYG2400205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa47e76fa7068ed529eebbcd0da432571e484434d798f60bd7dfd641296235c3f. 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/USUS12300054.