Guillermina is a female given name with Spanish origins and may refer to: Guillermina Bravo (1920–2013), Mexican ballet dancer, choreographer and ballet director Guillermina Bravo Montaño (born 1949)
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 0xe4cb4536d6af87219ff0d0decd865bc3298ef198f5d1b1da759268a14a321f03. Chain 2 (Bitcoin): anchored in block 953768 (2026-06-15T09:30:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c3b0659a-9a59-40a9-b5bb-5c3aee6ebd61.json and https://artists.proofprofile.net/proofs/artist/c3b0659a-9a59-40a9-b5bb-5c3aee6ebd61.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 0x1a9fa4f1827e08c0fd4ba10450284b430bb85c191279048d9f06643f4b4dd14b. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/ARA140100106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd809ad907eb3badd285dceb00e2850731df865cd7e90d34fdac2da3e96a9506d. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/AR1B00400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4ba03df6bd720fba6fcec30b0d314ac8dfc9df32885031cb0453ef24802a1c1. Chain 2 (Bitcoin): anchored in block 958756 (2026-07-19T16:12:29Z), 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/AR1B00400008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12267dd0e5902c0cbdb82c5156ac99f785cef06fd57edd54abffdf0ea99e1af3. Chain 2 (Bitcoin): anchored in block 958582 (2026-07-18T16:47:25Z), 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/AR1B00700002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3c15c28477c26f5c7813989efddeba62d372e53f533e9769dc0e399f0548f6c. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/AR1B00700003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17af20e31d849ea49fc4d501323d841c000d9fb77e58b94b6a23333220481940. 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/AR1B00700005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd14c7663027c8b4b58b2d51e873ea5c365b27394f4276375681f324bfe9331b1. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T10:07:37Z), 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/AR1B00700009.
No Te Conozco Pero Te Imagino (Versión 2023)