Méndez is a common Spanish surname to all of Germanic origin, originally a patronymic, meaning Son of Mendo, Menendo, or Mem. A longer form sharing the same root is Menéndez, while the Portuguese form
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 0xb9e6f919155a0e88c1df6d073ab34d04821a73c957e056fb62a582222998749f. 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/7aefd408-b83b-4420-ac27-099aab03c4d7.json and https://artists.proofprofile.net/proofs/artist/7aefd408-b83b-4420-ac27-099aab03c4d7.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 0x792fea16214ad52b70afa02a8d5cac4ad17c1c963007cb9526d52b288a250e6d. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/QZFZ31922807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77e1ec600bdc4ff3ba9d70332be26a738c18297de21e08dd710f9eed901b7214. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/QZFYY1985858.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39aadb7eac8670c6e31ed54b3ce76c422c483a8c141b9dff73dbb449f0725861. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZFYY2010487.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51b1c1adcfc18d842e0f96bbc96eb6933dba463bca2f5a86bf7e7cc178e11af7. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/ZZOPM2118899.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f5cf6a4c916e45fdb820a9984ae8ec5623f589f0b88fab74d1ce8340786af76. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/ZZOPM2223152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba6a080ec6c44b67645a3e8280997614bd2a260bdeb104b07fcf4d29fe270cea. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/ZZOPM2224352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5141f36dfefd61bb164391d06d3006bac5bcb968c51949c41cade90ed94db528. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T17:53:56Z), 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/BK4DA2204613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f8bac28db0098355b0e1ba1866e1e519a7db63b0419643d582d04e01ed44858. 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/BK4DA2214517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a70c6ebaefe19ff1931d87ef75d6e9d78ece415d947e1524d1a55711f11c890. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/BK4DA2301857.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34aaaf8db183f8faabae7d9d5ff9ad1741b7ba4404dc0815ec7ef18de8c56052. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/BK4DA2308193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34cfd8293fe965f6a6add366630e030c2d39406f85fdd65ed65cc7ee1bebde6d. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/BK4DA2308191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5706debf7a2b0bb984296676b7cf1853bbef3a2bc2928aadf8e70eed48f6a15. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/BK4DA2305143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9805ceeaae6f96cacc344babdc9ffed60dcf77f0da2eb5650dfdba9a8fdb90ea. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/BK4DA2308192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c1c3f6b9b39b156e8c478490133f8416be13c3a0dec188d066b4e28663f14a7. Chain 2 (Bitcoin): anchored in block 959065 (2026-07-21T22:00:50Z), 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/US7VG2469185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94beb4e1cfcf513d622a145aa0eeba74ce526bacba680f9b809e33a5f0834fb5. Chain 2 (Bitcoin): anchored in block 958529 (2026-07-18T09:21:41Z), 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/QZNJW2465973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5de99512270194a3d33ce03a12af82734677227b3f26fa3b3c390f1025a11f0. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/QZTPX2438144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1230d4e8a4f186bcc3d0a31b3d27bae1256ed5df7397e16f715bee0ec3e57353. 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/QZTVM2486059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9f17cc6972ca6a5223b68474d2bbc29b4c1bb379b8a4b6aa15328fd7ed5a841. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZW9L2414339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5966726998a8cd01c58e3824232aac36cf5571d25ee64621c52f6ac71d0f6535. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T20:38:50Z), 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/QZW9L2414340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f422c882005fd759ef77cfc544febd58f0ffb4c3a3608a0411f86dc74a6a460. 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/QZW9M2449750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bb2119cc0c81162cceb38d0f60cf71563167b58d0a03871acdc896732a2a666. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QZGLM2515167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ca4e221b22f25b6b418afedca65fb11a389637b17e76621a6c05b0b4239a07e. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T11:08:30Z), 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/QZGLS2535114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bb2119cc0c81162cceb38d0f60cf71563167b58d0a03871acdc896732a2a666. 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/QZGLM2515167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe551856a982b2d8d6db6d9c038dd8a0bf924e793762c1403763b089888a3f1d7. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/QZNJV2520444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeff1b6f38f6b3986ae2b9f7274199be63e6209534daf34bccdba3c20f06c002a. 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/BK4DA2212946.