Alfonso Muñoz (born 1932) is a Colombian sprinter. He competed in the men's 4 × 400 metres relay at the 1956 Summer Olympics. References Category:1932 births Category:Living people Category:Athletes
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 0x6bdf12705bcf8a3d9d4b4fae72efe0e41c00d2f4ca890e441a290e1fb3f28618. 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/6459c452-20b8-4f5e-aeda-9fa9ca614529.json and https://artists.proofprofile.net/proofs/artist/6459c452-20b8-4f5e-aeda-9fa9ca614529.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 0x3e4805700cd8314da6728b85a0b5eecf2d8cd5aef144c26918a3784d408787a4. 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/QZDQH2387538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x212e42ef6518e3fbe5be9524658f40c1163a0a93eabbaf6928cc077f5ced52e3. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QMDA72458533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa160718bfcf3644a405eb8472356a0d0e1f90fbb81d7418fd8312bfe181752a5. 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/USL4R2476437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8785891e417a624eb704e650a0d7d557ce0f0522e38b1886efb4c1524047686e. 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/USHM82435961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce8fdabc724675b31a3365dea1eb16eb5876f45f8fde5110de09570c53710119. 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/USY242446900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf822341ade7b8576501ad6278251a21d054bbff15235bbbc73fa29454ef86796. 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/USL4Q2471021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa160718bfcf3644a405eb8472356a0d0e1f90fbb81d7418fd8312bfe181752a5. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USL4R2476437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf82d8899d4d1eeb7923cd01b029dca7a1e66b6f7980341c60c018050be62c13. 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/USY242446901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5068f0de9652b742991fd12540ee2285eb65d8d6a0813272d10132d004d1d0b4. 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/USY242446902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2ff2e191434a2807e11383cf523693c2b26ccb6554670abfa799f8a6d693917. 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/USY242446903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e1215d430e3218aaa7f25a30b188dc5e9f7573e8a14a3ab8a4a26047293c0dd. 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/USY242446904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45a160eedf564ad7c20df30ae3011cf8296ffab3d9c352dabe1784fce59f2cd9. 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/USY242446905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14018e8d405545694824737c81634d5149bfcf1a32186d66f984cf9d7c83a0f5. 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/USY242446906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37ca21b82ad2fc36eba4d0955a2fed80661e12cb91fb3e5b3ee5f1b04788680f. 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/USY242446907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68f784ecda812d2039b4a0107c5cd62484a56512ba2eeab8f73091f87aafc3dc. 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/USY242446908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b56607a7006b14853e4ec5d1a8bc0602b4a93725437d7da01272ce006ffeef0. 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/USY242446909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5658485a040cf8ff0adf8aa630fc336a2c1cb8ba8d495b9d647d7134b15d39c. 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/US3DF2514423.