Ángel Santos Vega Colon (November 1, 1922 – February 21, 1998), aka Santitos Colón, was a Puerto Rican bolero and mambo singer, born in Sabana Grande, Puerto Rico and raised in Mayagüez. He was also
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 0x1b2fdfc208c3308b99816330db83161728f9683fa6fd2dbe07f2264f56cf3bd4. 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/036bab79-f357-43a5-aee0-316cf451366f.json and https://artists.proofprofile.net/proofs/artist/036bab79-f357-43a5-aee0-316cf451366f.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 0x27a14a4c0cd6ea32a085c0ef7dc08ed81e400298a14443b47800805a555464d7. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/USDBB0600357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0aef541f0252a6b863c542c3804dacf7f0eb435ad389dabb37bc05bfede7f3c6. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/USDBB0600354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1101fadac2189788263d4fd58e5fe5f38e976e260fb7d08b738d945e434f0643. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/USDBB0600363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04151c71bafd2d59664a3a4964bf01682df552fa671f68cbd5638facdf0afd58. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USDBB0601781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9595c2b00d1c2a6ba745ac48a84c134b6d0431a5de07e650c1a76f7ccb520559. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/USDBB0601385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf30dcaeb43b14c43c00f24c1031feb27f06798f9e29275d43bc003329db4368e. 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/USDBB0601450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8404ade187160f30974260b3fd088fe897485e065730e2e5701467c24f412b47. 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/USDBB0607517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe19a527dc8747faba93c2412097adfbe2013b9927cedf1084159c6c943d6969f. 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/USDBB0601795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f4966f2a5fbf005035e558b1a1f01b0cc8362e7a10d5ad30c2d79aee2c72d62. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/USDBB0606774.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c67bdbed249fde037a21cc6bbbb1c851a1d2eeb5dcf792c995db6b283002ce9. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/USDBB0603091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x504c74bf723f1ca0f8dbe948109840f38b94097ce0e918c710d91564a071a21e. Chain 2 (Bitcoin): anchored in block 960183 (2026-07-30T01:10:20Z), 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/USDBB0601697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ff0c6876a82619d440d791d5898844593287a23115a0900b40091fe67e5884b. Chain 2 (Bitcoin): anchored in block 960106 (2026-07-29T12:41:21Z), 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/USDBB0605055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde764c661334a404e41d3d02c36ee899f8a351f166c351d0706e7c4de4e94d11. 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/USDBB0601646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x499707d60f1b5bd30bc204fa001842eb53ff3b39972b3cf1b8f81c7fcb84da66. 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/USDBB0605151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65217f4c0fdeb447ecf934bbd9a97dc77cc618851de9cd2dbbc2c12bb6e03e24. 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/USDBB0604878.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x133a90c7cf63a28192a047b220e6c145ca5b03e11b6fcc8718e5f05a225a814b. 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/USDBB0611038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c9335dad44009c1848ef49ef69081098fdd3f4b34a9125a25cbca6114f88c79. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/USUL10301674.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4deb98dc4a6bb0c275c122dae67ad6dad0b6c85ec598b4a03caa7fa309b3fa7a. 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/USUL10110363.