Roberto Flores may mean: Carlos Roberto Flores (born 1950), Honduran politician, president in 1998–2002 Roberto Flores Álvarez (1909–1984), Chilean poet and politician Roberto Flores Bermúdez, Hon
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 0x9ae14126ee27dfeda48d4e438846e447730cb7e3872fc1c180f984a711be6b45. Chain 2 (Bitcoin): anchored in block 953803 (2026-06-15T15:41:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ebd4df4b-3170-45bf-bf46-6902ffc58438.json and https://artists.proofprofile.net/proofs/artist/ebd4df4b-3170-45bf-bf46-6902ffc58438.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The History of Tango / Enrique Rodriguez - Recordings 1939-1946
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 0x49db61f20fcbbf0f4df20c27806f85415925868224a1fd50831837abc36d2c17. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/GRHR10972804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76495ed29d71c8cd9b74971aa4add3eb4ba78f260f034a54ee8b7c79d8286b42. Chain 2 (Bitcoin): anchored in block 960241 (2026-07-30T09:58:01Z), 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/QMFMF1470734.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x615b79fd8f4b9750616e274c1bc55af01b7350a1c6a336d5581f864edf9d537e. 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/QMFMF1470740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c15c62ea824a86e6a5602dd47cdc35b9f02097627c5aadd82b013c651886a15. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/QMFMF1470741.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2d41b2f3a03acb640db3b184851b9b19ca45a0cfe47047d54995c3867845a57. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/QMFMF1470747.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c15b956c8aa0c7f998ed44bc433de4636a6d27d4c580df94752db0f2ce9d2f8. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/QMFMF1470751.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd010bcab4618cd2892b1713424c3108237e0514924104aea995fa9bdefa54dcd. Chain 2 (Bitcoin): anchored in block 960485 (2026-08-01T00:10:46Z), 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/ARA821200658.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x300c4914ef1324c2065072b1f2ff1b95be7ecb8a690f1927082d247670bb62e7. 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/ARA821200663.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90a0e13a802a60f6ea384d77e4cd40336f3e078b083eb6aef32910a4bb581559. Chain 2 (Bitcoin): anchored in block 960503 (2026-08-01T03:41:24Z), 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/ARA821200668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6827f5ff4852f73405bd06d18bece9f6359d4c641a63e28bbd634ae86d064eae. 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/ARA821200673.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76495ed29d71c8cd9b74971aa4add3eb4ba78f260f034a54ee8b7c79d8286b42. Chain 2 (Bitcoin): anchored in block 960506 (2026-08-01T03:50:58Z), 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/QMFMF1470734.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2ef61f8f131ce9a873a994a307125c1be1519da8aef402f3648ae11339f4e34. 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/USCHR1336436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee9a0b9406e5510f61a5e67784f57efb865f965ffc74deaa57d6c0a03e57ff35. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/USCHR1336440.