AO, aO, Ao, or ao may refer to: Places Ao (building) Ao, Estonia, village in Väike-Maarja Parish, Lääne-Viru County, Estonia Ao Line, commuter railway line in Hyōgo Prefecture, Japan Ao River (Z
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 0x80035c9a468d478240a1d22a17ac84a757e60cd57a41e9b385258161ce7e930f. 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/a8785397-e956-4275-96bf-bf579ac04563.json and https://artists.proofprofile.net/proofs/artist/a8785397-e956-4275-96bf-bf579ac04563.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 0xfb058a10513b42991a4f90332fbc60872b299a36c454ce346893f58f40ad8e2f. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/JPVI02101845.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24863940856e29385d7767918715202b0b4041798b14731aaa0c4ec6b9efd239. Chain 2 (Bitcoin): anchored in block 958095 (2026-07-15T04:30:08Z), 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/JPVI02101931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a2d072f00ca08b55abf4fc73b56668aa4eae1498faa764c36af055123e3f9fa. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/JPVI02103509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24863940856e29385d7767918715202b0b4041798b14731aaa0c4ec6b9efd239. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/JPVI02101931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a2d072f00ca08b55abf4fc73b56668aa4eae1498faa764c36af055123e3f9fa. Chain 2 (Bitcoin): anchored in block 958526 (2026-07-18T09:09:53Z), 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/JPVI02103509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b922b09878f03aa2dc1dda849830e72c23e48dc70504b1ede30b3c1ab9e69c0. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/JPVI02201266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b922b09878f03aa2dc1dda849830e72c23e48dc70504b1ede30b3c1ab9e69c0. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/JPVI02201266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x463041e33404dff677b182e70b758bac21b765a2e3cf79c6ef6115060d3e6d96. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/JPVI02201777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ccee67677dccf77d5a02e57dd8dc7425f2e660cf79b9ff6c967f27186cd0749. 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/JPVI02203017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ccee67677dccf77d5a02e57dd8dc7425f2e660cf79b9ff6c967f27186cd0749. 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/JPVI02203017.
MABATAKI TO SEISHIN TO KIMI NO UTA TO ONGAKU TO
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ed09022c6c0f47ccc357c138ba84717e8a160962532b991ff2f73a7a578329e. Chain 2 (Bitcoin): anchored in block 958346 (2026-07-17T01:47:42Z), 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/JPVI02203789.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f6df35fbd3961075506ebdc5e5ef97721ffb35956e7295d610069e8bd5aabf2. Chain 2 (Bitcoin): anchored in block 958473 (2026-07-18T00:52:36Z), 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/JPVI02300340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e3122ad33f82dad4823278bbef9213a45c589c389c109a42b507240fd1ad073. Chain 2 (Bitcoin): anchored in block 956578 (2026-07-04T02:23:20Z), 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/JPVI02301708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e3122ad33f82dad4823278bbef9213a45c589c389c109a42b507240fd1ad073. 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/JPVI02301708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7bee12495edb6dbabc2bb7e4e87799286e21668eb3ba8427469992ed5236adf. Chain 2 (Bitcoin): anchored in block 959109 (2026-07-22T07:21:40Z), 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/JPVI02303090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7bee12495edb6dbabc2bb7e4e87799286e21668eb3ba8427469992ed5236adf. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/JPVI02303090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2066cab462612219dc7b2d1079114978d15544f0948954d4410608e3f9c917ba. Chain 2 (Bitcoin): anchored in block 958366 (2026-07-17T04:59:09Z), 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/JPVI02303848.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48aa5f9288b1dbc4b19c1200fee0fa7c804219c4042c35f7beb996502be4b3c9. Chain 2 (Bitcoin): anchored in block 958395 (2026-07-17T10:10:33Z), 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/JPVI02304748.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72fa5e6526189f8793a3675ac9a664611b2b8d88d54f50a24d304d9d73762fde. 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/JPVI02400070.