Juan Carmona (15 February 1932 – 3 September 2005) was a Chilean rower. He competed in the men's coxed pair event at the 1956 Summer Olympics. References Category:1932 births Category:2005 deaths Ca
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 0x194f5e8d8179bc2c1724c057adb863f6411686c4a59fe7c8fb8fff8fa23faf5e. Chain 2 (Bitcoin): anchored in block 953911 (2026-06-16T08:03:10Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/18c5a60a-b21b-429d-8655-cc81a66209a6.json and https://artists.proofprofile.net/proofs/artist/18c5a60a-b21b-429d-8655-cc81a66209a6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Flamenco en el Berlín 7 (Mira Mi Música)
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 0x222e75003aaa7e0b424efe9142eb4e6deb6f9e99387f94c98d51b12e9a022024. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/ES64E2201582.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64bdb0d08b85f3c7f19b10f46eead8830f33d84b96fcfe3367981b9cb56785dd. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/ES64E2201321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x493ff22ab4e141d8a80a7b1f318dd5450366962fed8deb89bd034a9f6f7c78c8. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/ES64E2201580.
Mira Mi Música Flamenco en el Berlin 4 (En Directo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef28240b4a8e4e66e122e65aa4ce505e5042afea91d136ac3b7486d2d66e2132. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/ES71G1753892.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x770d797b9917ac5521731549b4cbe3a107e11f8aecb68a343486c7ea5c0c4e5b. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/ES71G1753893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff94677c6750a9789b57ae87aaafdd5dee98be322299d2d30a4df4a6753bf16e. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/ES71G1753894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99a3805351085d2fa485fd005f64f0be6b593bcd4ff080ba7081c558254cc5b0. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/ES71G1753895.