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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf57cc2896fddfef3786a0fe86d9c136d12e54e3327129bc25ee321eefb800d8d. Chain 2 (Bitcoin): anchored in block 953695 (2026-06-14T21:42:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6e59057b-8027-4bf7-b6e9-b0c09fb83355.json and https://artists.proofprofile.net/proofs/artist/6e59057b-8027-4bf7-b6e9-b0c09fb83355.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 0x9eb11ba7fa34cc4895a58c1958d21513a3f9f0a1848a93edc742765dac769bd1. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/FR0P12100220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7a3b05ed154eee21bc744db3072c54fa144493453128f97ddfa4aac07f61c61. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/FR0P12100250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a3f81a346c46a11978222969c85f38845021c7ba0b447cfe7eae3a66eaefb22. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/FR0P12100270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb7d111b5f0949d7293bbf52c738e1cae2f4dbcb92a6bc7ee045a185a8c024f3. 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/FR0P12100310.
Mundo Ideal "Ya Araih Ouine Amsafer Tr" - Ya Rayah
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdfcc6859b4402196882ea74b7c0a0ae613a1e5d592eaa338eb3aa8521d95b2c. Chain 2 (Bitcoin): anchored in block 960354 (2026-07-31T05:48:18Z), 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/FR0P12100230.
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 0x56e5146154142b3eaa7f529ad6119ae78cfebd03699f5851b5288e7ca7300ab9. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/FR0P12100240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6f7b32ab70e100b5c500d05a7e3ab91def2ba9cbe328327bb1b8d7214d7a9e0. Chain 2 (Bitcoin): anchored in block 960387 (2026-07-31T10:06:30Z), 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/FR0P12100260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f81b1f6643b4f6580dcf95d902bd30a8e0c3e558827c353c0c47c9409dc7f1a. 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/FR0P12100300.
Flamenco en el Berlín 9 (Mira Mi Música)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd179138718e74aacc1d73ba5c123fe65fe95447d4f7e3c32e5b5efdaef49c9f8. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/ES64E2203406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17f701c975aeb59d0f7326ca77cf1a3ab11e0d6e1b8e24d7e9b33e68c2fea8ea. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/ES64E2203539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26f077654057f31559cef7c91923623652bc8901bc71050b936bd410128172f9. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/ES64E2203399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11718e71abbe6ebb57b58ee150ba16ca9e591626164e15cd1b5d8df86e579414. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/ES64E2203396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa948b5626d8966808a5b5b8affe9e008c0c4f6773e42f0e0941b1602658ddc8f. 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/ES64E2203398.
Antología (La Mujer En El Cante - Remasterizado 2015)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cd162d5275df51f49425f93ca36998c51773dff77cca443dc440df330b0ff9d. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/ES5701500169.