Gordo (Spanish and Portuguese for "fat") may refer to: People Afonso II of Portugal (1185–1223), King of Portugal nicknamed "o Gordo ("the Fat") Agustín Calleri (born 1976), Argentine retired tenni
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 0x2c62d9a68f05494a86764c2bd035bd12f70d13bb3be2f81123cb7517177ff41d. 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/3891bdaa-2197-4011-82ef-ec3285e91a65.json and https://artists.proofprofile.net/proofs/artist/3891bdaa-2197-4011-82ef-ec3285e91a65.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 0x7fa04d0ec366c20004876376e2c4dca8e2e8fa1c9d43342352fde7e4061372a1. 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/USUS12200874.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19e6483dd5a3c501dc1086e685a3c0020610856b49138172fd2ceaddfa91f82a. 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/USUS12400294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4e8cf4e1ae390332d41c8ccf20906fd12c5d19214add27508ba8617d36b3153. 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/USUS12400451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa969db2bfb2e7063822c35aa872a7a48cafb243c0c4d569d61ddab37632d259f. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USUS12300378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a75b4960aebe4fe926de61783feb3923a2a276d5567ca126209ef05b1bd47f3. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USUS12300471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99bb3cbf777af5dd20c22775f8264cb76d05093190b257a61483a2a5b60d51da. 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/USUS12400057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb34cf9abfaa4f2c653004bac3bb991d0555f35698904f893d7a573c315d889b7. 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/QM6N22379917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd674d399d3b9c93d3fcbc1cc292e33aa535aeab3b005f43afd81cf388a0cafdb. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QZ9QQ2400402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ddfd22c688bb87342306265543ca4c8fc7f0e4eb86c274130a17da72323f30d. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USUS12300030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96d02e52aa9c43945c2f132aba74575c3c59ba783c72515b69e3f9c22755f65a. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USUS12400861.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38fa78603f86c30c9e7b74e8cccf12861ee8cc48934d007bd8609addf877f6ed. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USUS12400857.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe975b8ff33fd6b2606604e9a472dc4a0f9913736924f81c55ae3e7b902cdc781. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USUS12400849.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88a0e5603ea3bb345af724f0f804b91bc61ebf40b3a33453d84f75b85e261fe7. 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/USUS12400865.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcca6018294e6bb237cba5da347420b8e1414ff6a66b0fc25082ecda4f33308f. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USUS12200447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd674d399d3b9c93d3fcbc1cc292e33aa535aeab3b005f43afd81cf388a0cafdb. 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/QZ9QQ2400402.