Huarache may refer to: Huarache (shoe), a Mexican sandal Huarache (running shoe), a running sandal inspired by Tarahumara Indians Huarache (food), a masa-based Mexican dish
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 0xf32f223cef9459e67e6b064d7f3975e98d6c580bf15c06b7977af83e5994e8c1. 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/fb162a77-687e-487a-b5fc-8b262d953d0c.json and https://artists.proofprofile.net/proofs/artist/fb162a77-687e-487a-b5fc-8b262d953d0c.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 0xe1729be4add245615e145d2bcad1b89aff8fdb12776c7c8e93618e748a493660. 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/QZK6F2147088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa092229ea02b1e2ad7d835258ee0f1af5dd52e2910477cc1095d3aa49dd3d8c6. 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/QZMEN2106415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa092229ea02b1e2ad7d835258ee0f1af5dd52e2910477cc1095d3aa49dd3d8c6. 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/QZMEN2106415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d9abad7d151f3685f71b44179975678ec9ff2a2c8927c582834d6e0d736529f. Chain 2 (Bitcoin): anchored in block 958617 (2026-07-18T22:07:13Z), 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/QZHNB2263033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9f3158fe102e2d849b5c6f8e967924f7f6d650483566b325a998ddc3404f273. 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/QZNWR2295351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x120111195acbaadaf2d052635099f0ed62d61e1e9758d6f6bf0f091f52316f2e. Chain 2 (Bitcoin): anchored in block 959034 (2026-07-21T16:34:25Z), 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/QZTB82230156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee4fdebbf9e273bca19a30b4b8ae9e5764f96ca807d3638ae56460033c7aabe0. Chain 2 (Bitcoin): anchored in block 958696 (2026-07-19T07:45:31Z), 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/QZHN72306177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x490fcc27b9cf29364c47e36b130b18d39791e630d1e0912259f82f49a0dea8c4. 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/QZTBE2355112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6f828bb6920d9fd4ddfd494bc526eb406ae60e4aaf2baa908934c4704c3b3b5. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QZFYZ2479118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe98e6c3f4c86cc7a877381ff98aaaee906cabecd3cc839cb5de1d57e10f6ee97. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/QZDA42469585.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe4e65418cea7a09ee8656e0b5d40c8227c7d8deb027e8f405d40276e6270d52. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZNJZ2496213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d559339f7ec6d8b72a6ed9d6058da460dcb90663ed997bc2e86e8e78c552119. 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/QZTPX2497224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65ca963000f2b83e3e48ff0b92af9d1e0e37927d63989b26a62bdbbce7afdd97. 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/QZW9L2499992.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57ec84584ada2c1bb47f25f1fbbcb53e189a3d31f49abfb34451fd8b6e470712. 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/US7VG2574834.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x653d1e0292849a3645771cddf79c9198c51400760a6d4ecaac1faf3d336b412f. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZWDE2559709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc25ca021209bae64f5a9fc882eb3b3e7b77126fdd534343f9cf02939825ae4b. 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/QZNJY2579774.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72d74bf9c4ff2b02c010e40b6f822555bbb0b3b324878340cecb5ba4ad5d6fd6. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/QZTPX2533650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90508c2d1ce3b62d0ad0ff853876a95e4890943413b20bdf6e9faf863d93087e. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/QZTVM2517564.