Jorge Guerra (27 October 1913 – 28 July 2003) was a Chilean cyclist who competed in the individual and team road race events at the 1936 Summer Olympics. References External links Category:1913 b
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 0x48a6654b1dee49435fffb2bcff733e5c1159a28a1c6dbb20c43a813f23f86e74. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/618fd9ec-1f99-4b55-9073-f83b5e1c59a9.json and https://artists.proofprofile.net/proofs/artist/618fd9ec-1f99-4b55-9073-f83b5e1c59a9.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 0xacf9c21ec0d297c1dc500f58f1f6187f3bc4accd176985c655f5f51abcc30537. Chain 2 (Bitcoin): anchored in block 957603 (2026-07-11T20:26:17Z), 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/US6R21226072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66d1ca74238fd20859186fcba081c2a866d0e3f06be58ce34be94966ca54ca5d. Chain 2 (Bitcoin): anchored in block 957603 (2026-07-11T20:26:17Z), 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/US6R21226073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76b88d6eb096b9580e72133a4a4028f6a9e9b607f54a362a9ef21e5267efe786. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/US6R21226074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a9a654a2046c10f40d6dbe0bdc853436164219b563f8ea5a67fd79a3265c6fb. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/US6R21226075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaef5a8af2bc66a28c0518e77f5766c29c2a7e04b42f0378a53313186739b655d. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/US6R21226077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ea1d5cbabaf28a4b86246b832b4363da56c9ec702a67c98ffbd90a43d50bf23. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:09:21Z), 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/US6R21226078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a171c88a47a8a4940a7811091c53d7f93befe35a7b2d28c1868856ad69dbfb3. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:00:54Z), 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/US6R21226079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0921c566b60e291efad9590b82894eaf4e43d31e9520f8fb4dbf7a3bf0e3cb92. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/US6R21226080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedca2252ec2767f934b1d9bae61ca70688c01164f9bb67b4dc924baea79964cf. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T02:15:57Z), 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/US6R21226081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe36e5f0a306f7df3eb4ec3abdb791b3186d409fafacbf4fc1f0103d2a72ba461. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/US6R21226082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7afc99a1e8d3518b7f864a2fa29dd63902270c696d8cc4ed3602aad4ae0c4ed4. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/US6R21226084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59d8f7d34277c0d9ec2f5c60eefaab75f3e66472085a7f7c0c7b5ff020fa0548. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T02:22:21Z), 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/US6R21226085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86d0ecdcc597f2fac82ff44a08c6d244914e06a3b8442b964d774ce2eca90485. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/US6R21226086.