Aquino may refer to: Aquino, Italy, a small town in Frosinone, Italy Aquino (surname), including a list of people Aquino family, a political family in the Philippines Aquino, a book about Benigno
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 0x8df8a96a725b7e717eecb551dcd6bed6fece014c0975aeab949a465ad1b140a6. 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/2f18bef9-afae-462f-bbd9-cdcab477faf8.json and https://artists.proofprofile.net/proofs/artist/2f18bef9-afae-462f-bbd9-cdcab477faf8.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 0x1ea538af4ca779c57ae10cf526149c966a9f0ae15f07d80e2345a751be34bb3f. Chain 2 (Bitcoin): anchored in block 958864 (2026-07-20T10:24:04Z), 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/QZNWS2005989.
Os Prédios Cinzas e Brancos da Av. Maracanã
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc64652ac08101f9cf88648a3fe3b87ae9868555f7a120cbcea2797192bcf3187. 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/BCX2M2100002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76881165a74de0fbaee787288b85f45e783b65c415df0ca3441ac9599441fa0d. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T07:48:27Z), 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/BCX2M2100003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04efda22d6eb213f51f2df17859b8e1f3eedc64c44ce0c8d83f47b5017e03593. 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/BCX2M2100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1ed03ffc097ff1ddd0c8ba9db41c54e0b750a6aa3aef5bebbf41fcf0f837b78. Chain 2 (Bitcoin): anchored in block 958812 (2026-07-20T03:24:09Z), 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/QZES82057216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32b48cb41d53778044d289fbacda744682e73afbc98b140028bbda97b6bd5255. 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/QZHN92011312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb02fb6f50c2a1ee4510ce86262aaae8679082ed3996fd1617f77853fd2b3573. 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/QZMEN2093317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x312428eab6cac6152572fd83263df9e1db05d665442e7cf958cbc3781c5ce074. Chain 2 (Bitcoin): anchored in block 958529 (2026-07-18T09:21:41Z), 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/BCX2M2100008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9475de97e318bf9476f17e99664e289ed714418e9412db12b031b518b2e8c2a. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/BCX2M2200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9475de97e318bf9476f17e99664e289ed714418e9412db12b031b518b2e8c2a. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/BCX2M2200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9475de97e318bf9476f17e99664e289ed714418e9412db12b031b518b2e8c2a. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T12:03:04Z), 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/BCX2M2200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd7e87adb1a5d6dda05997638b4721618a969ab4b4d1c67570efbe2c70bbb423. 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/BCX2M2200004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd7e87adb1a5d6dda05997638b4721618a969ab4b4d1c67570efbe2c70bbb423. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/BCX2M2200004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x069a421290424a5f2da1519a2f45d6048c3ce7292ee7b01ffa9b06813733bf63. 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/BCX2M2400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44d673e51c51ae00907b507fa74fbbfa8182b5433de480583e7234034c61ba2b. Chain 2 (Bitcoin): anchored in block 959084 (2026-07-22T00:50:00Z), 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/BXHKP2400006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa60accf025b4ca5ebc025db1f1a2858d0ce746100b6d0178ea94d52a09a7eb27. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/BXHKP2400008.