Gustavo Palafox (15 November 1923 – 21 August 2006) was a Mexican tennis player.ITF Pro Circuit Profile Life and career Palafox won five Pan American Games gold medals during the 1950s.Sarasota Heral
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 0x497fe58db969a8257d2fa53e22624534f02c512ca269af76831a957c72a2b215. 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/20d13a79-069e-4839-a4f9-2287176a91ec.json and https://artists.proofprofile.net/proofs/artist/20d13a79-069e-4839-a4f9-2287176a91ec.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 0x1ad2bcb7022bc8532f9907385aae6c39a74cc8c0f508ee95485406077e0536c5. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/USA2P2347166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a790bb6de0e85909d188e52cfe93f0ac1ba66f86bb4bef74156a42d381de977. 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/QZSYP2161641.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d1fbd87e3963122264eec96e786c70c5077fce26975da27f8875e82922950e0. 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/USE7D1800203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ce89af40f59c175c939a748ac6c0874c17149b3b0dc8234485334c1ac9f3d6b. 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/USA2P2247366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8677a15abaf508ecbace5fb3fb44d2aedd765bb52301ecbc403ffb10f7cae53. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/QZKU62000463.
En Vivo Desde Los Ángeles, Vol. 2 (En Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10a3080dd29165ee453dc530d51163791eb911225d59acfeaf278517c1690dce. 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/USA2P2311231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10a3080dd29165ee453dc530d51163791eb911225d59acfeaf278517c1690dce. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USA2P2311231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a2918df60adb86d267fb00100d6a6c7ff414314dd72b7015f7daf01a41ca68e. 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/USA2P2502134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd54b66c8ab9cde4455c553fbdff642872b57da7f7e6595f6166cba7818a58e04. 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/USANG2254910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x677c7d502f8356e5f0ef85a6ddfec0f12121c5cf9ab38029f40f1bcc82f6cb79. 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/QM6DC2074156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bb07199d91aad832cd9c7f5f018e5c0b8e44636f50035da48f4b3157adde652. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QM6DC2074157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf0191a0596e9f31d009d976609c107de1b9d61614e028ae935013b40da5d82f. 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/USA2P2465392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02bdffaf288eb9bb710ffc5d5b75dfddfeb18a6eeb1c3607ed92e1efc75a4232. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/FR59R2426304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ea5d81809a30f1bfa8799cbe4b86313843a5b7f30f55a4c35ba44f442dee2e5. Chain 2 (Bitcoin): anchored in block 960268 (2026-07-30T14:53:07Z), 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/US3DF1967323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd87054df67b9ba5b71121cad6e422a2f0f0c6e754174de5ad20c4833ec9c39d6. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/MXUM72101130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55979abc4e1b876d231d63340cd6d5854a44d1395299cc2a26d5bfda49f3dcd1. 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/USUM72010003.