Pedro Rivera may refer to: Pedro N. Rivera (born 1945), retired U.S. Air Force officer Pedro Rivera (footballer) (born 1976), Chilean footballer Pedro Ignacio Rivera (1759–1833), Bolivian-born sta
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 0x89557acf44b5d721c5840e7e7387fa3222c78dfb2e7327f2022e1c163c4278ae. 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/7783072c-a4fb-4684-8c61-b88092c18fd6.json and https://artists.proofprofile.net/proofs/artist/7783072c-a4fb-4684-8c61-b88092c18fd6.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 0x01be2b3d9cbe51a03a5c006ec40b800ed58b37b9fcc176305e4b43ebe4f3738d. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/QMBZ91565977.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc56ce1637a3f1bbbf138e261136be9c22f3f554f2fdeed7a4130ec62bf2d4738. Chain 2 (Bitcoin): anchored in block 958130 (2026-07-15T08:37:45Z), 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/USV291414041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8438cfdd0c3be1a005463bf139fe9332d12dc8b4f9bfae557b93b3d595a4239d. 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/USCHR1399575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa255c80b48c23a5ea712511925b939d241d10b1a43a73e7706b40985dab94dff. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/USCHR1392979.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x219d17c4bc7eb9c1cb66b898aa073574d91adfd350fe4b816e12bff5bf5a96a0. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/QM6N21502440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbca21237c56336e56bd149c97650596c34f4d04dabb39d1f48c679245ac1d87c. 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/QM4TX1723912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76d215dfc57c6f3cf05e9c24c73319d9ac07070e5fe154922e18ab21594ab51c. Chain 2 (Bitcoin): anchored in block 958506 (2026-07-18T06:14:51Z), 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/QM6N21903459.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05547d2102d963d7c53a41d694306ac5b3355f188481c56164060ab93b6d2398. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QM4TW2008452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3aa1d43d01b7b4060be7b69ddf12ea9dfb2701b29c1658253a2ac989db95818d. Chain 2 (Bitcoin): anchored in block 957874 (2026-07-13T15:43:57Z), 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/QM7281587857.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf990c72bee235098beaeb917e291bb337a68477668064159535fc41230613d49. 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/QMFME2182133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a44fab2b6633e686506880f6a6c43b6a4cb00dcd0cdc51e34de414945e74115. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QM6N22295786.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda5855418d697331401e86b0e65f1cae7ed13531257d17505e68e948f0dd1995. 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/QMDA72292603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d70648e82e214f4cff70cd1c3b816236edbb0a88cb68e77a1aba482ea1ec3a8. 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/QM4TW2335427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fd21afe19e984b5275517add904239ea0c5953f55cd63e012cec04b11b69aca. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QMBZ92407405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe41e3053f684e1dfb4e90f41adf2535d009d56f2eb8472ef4bc1936ffe6822cc. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), 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/QM6MZ2595949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x002264aaac9db4b85cc14eaf8cc09409a8c0998463cdc1c3949577258a15dd6d. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QM7282567938.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb51feb2fd8c1e34069a19ef3a369b0c8a82d0546c3de789b611812406972dc25. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/QMBZ92530239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe036efceaf9835caf89fd35397d67f6dfe7f076871e9cd53e33cde7a756cd666. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/QMYW20700908.