Richard Vincent Macaraeg (September 27, 1952 – September 6, 1998), better known as Ric Segreto, was an American-born Filipino singer, songwriter, actor, teacher, journalist and historian, who became p
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 0x26cc28b313a444078e2c2c7a7b92ec56346ebe548a2f47c0a2585817d04b94bb. 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/89454e4e-db4b-4f53-9c18-b6ff805ff333.json and https://artists.proofprofile.net/proofs/artist/89454e4e-db4b-4f53-9c18-b6ff805ff333.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 0xd169f28578169686164f39cbc4bed27352b9385cd9b8934a45898c5715cc8752. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/PHA039504496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1198cf5a5384f8dbc51f1e8a254d5f614a4b42ae924bb76f40f3211092dc1ca1. Chain 2 (Bitcoin): anchored in block 959013 (2026-07-21T13:39:11Z), 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/PHA039504559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82a776d3ca45fc7ce7ee0128b5a69247ca55cd0f2c705efdd73c242325a7a621. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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/PHA039404536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4cfb8a7473bb839363278585199190902b0393a39410b368a09b2c38f768524. Chain 2 (Bitcoin): anchored in block 958696 (2026-07-19T07:45:31Z), 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/PHA039404537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x702861c839db072efb4be63a290cd1120b02013f342395394904e56cd2467f18. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T13:14:05Z), 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/PHA039404538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b933118df1f82fb84488ae713b7546e492da25df77300c5615407091d2a4012. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/PHA039402138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5880dd574226abd51f6cfd899f432ca8d88ff1fa0b0811b3aec8ff18184ee70. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/PHA039402139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x448827e845ed7f6d3e01e0ea56fd9bb3adab903dfc2ddac38da761aa0acfc63a. Chain 2 (Bitcoin): anchored in block 957616 (2026-07-11T21:52:36Z), 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/PHA039402141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdde7a804ae000e2acfcbe20e0110d6f65eaeece8c028cb908600a871203676a7. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/PHA039402142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77c8c2b1252c68bb2f4b9a9c153df7acd9a84df605e8ed43b6c5159aafc5e3a7. 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/PHA030701012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5770b5a130aac4d933bb68f1bec91899699ae18968c8f7f20a0fa87c9086f9cc. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-15T21:23:21Z), 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/PHA039702302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4074828d844430386feaa33b25459ab0cc2822b835a081c0b9ded71209d54445. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/PHA039702303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32391041798df932887246f60c1b7a69c1b5c4277f81ed2a9ba44118512d3789. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/PHA039702304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2b495a3708ceb02dba052c6d50aa20922e382b87bc242abc36259ca50fc5be5. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/PHV021011974.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x040f0dc3f6982bb7b58acd790368ec26a462a15211ec40bf07a838b18fcc9a99. Chain 2 (Bitcoin): anchored in block 958476 (2026-07-18T01:26:56Z), 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/PHV021010410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa09d1e570a86ceea92fe8ffdac0e9a0077c9c771215f1bb6d12008b5f68c6d8b. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T06:33:30Z), 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/PHV021010411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdd446804736cdec149aedf317767e5bbefdc87346da84287a4599a4131beed5. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/PHV021010412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d93562007ef60cc39dade74e2ed34f25f118acd09b0e3b9aab817145956b7f2. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/PHV021010413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6488ed46a993a96e3d1ab66ae14dff3635ec4e44ec8873cff258329cc89e8bf5. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/PHV021010416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0e79969063e21f03fe1ef8b43fa82866ba02bff7ff69e8c2e3fcccb29c502af. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/PHV021010418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37bfc722051de7d18557b8e2c8ada82c932cfe15082a41b5fb62cb38d8b1b660. 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/PHV021010420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce005d5bfdaaa47e1277bade2b47db7f675086451782c6c41f3fa24b83258b89. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/PHV021010422.