Tha Mexakinz are a Latin rap duo from Long Beach, California, who released three albums in the 1990s on Wild West Records. The first LP, "Zig Zag", was distributed by Wild West/Mad Sounds/Motown. Wild
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 0x9ae046dc86699ec4c9af46ae952c5987cf1a7abf8611440ace94237205537e0b. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a5e4b35c-f529-4ce2-900e-27f0aab88fd6.json and https://artists.proofprofile.net/proofs/artist/a5e4b35c-f529-4ce2-900e-27f0aab88fd6.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 0xac4e7fde8c78fef28bffec9059d77ccf4da88dbf9660b22c6b53aee6f5104c36. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T02:31:22Z), 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/USUM71216797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb431ea54fc030543f9bf34ab214e73067f02f25e15f4380eded863f2dd1f098. 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/USUM71216798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fae0bcf9c94adf07744ce580d5011574cda39eb982e11b7125d9e4d5db4605b. Chain 2 (Bitcoin): anchored in block 958907 (2026-07-20T18:21:40Z), 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/USUM71216799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e03b53381f014321c9efbde9177724ac8365e761a7ab0f530ffbb85fb77fabd. 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/USUM71216801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65898a0153ef9ec5a3f484beb4605acc159cfc1a29dbee58fe52adf5b166e154. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/USUM71216803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6c9ae9a7b9215e11bc5a1bf12da35a2ea85f73d259e015c52bae790778becd7. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/USUM71216804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6ad35a94ac94bd6b06be122fa8e04748900fa54810f5910eb956a5d4e7e083a. 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/USUM71216806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0c15fd36b2165a870c75016637efcd951153a86065072fa98c600288c37745e. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/USHM21659587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa03418eb6fae7fb137d9f8e8f9cfa2ecbda2e3fadc0b5b43766f02c1445779f. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/USHM92212738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24c86f96d2485ada4b1c39ff0411ef03f65b94a4550f8c71875840a37c6f5fe2. 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/USHM92212739.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d88976b24d05ae382c643568490385b8c3458920f66b3e94c32a3964c35e311. 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/USHM92212741.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeddcf067d1296eaf958f636c1876b20d5b70d67e2d3b6a1333f7d0781ab0a0f7. 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/USHM92212744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bdc6d474ca5024f453093b77f3eb6aea2a56a40e1d17e817b2a12e49fa0a52b. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/USHM92212746.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcceff4f5b7ccc477c1d3f6deed12ad63276088bdcfc3bd71ab5456c7311b64af. Chain 2 (Bitcoin): anchored in block 958268 (2026-07-16T11:27:37Z), 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/USHM92212748.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x596ed0a67f3dd1dbfccec3656d4046aae8d8d1362f620f4119562adf5d4059fe. 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/USHM92212749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc40aee8cd668ee8f6ffb0d74ee4d53d11148acf58a05661863034693607f5642. 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/USHM92212750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa90e68334300710469506250bbce443f0f325bf6143a9d22cb71a193d6c15be0. Chain 2 (Bitcoin): anchored in block 958670 (2026-07-19T05:26:23Z), 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/USHM92212751.