Taki may refer to: People Iwao Taki (1901–1984), Japanese malacologist Kōji Taki (1928–2011), Japanese critic and philosopher Kumari Taki (born 1999), Kenyan middle-distance runner Makoto Taki
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 0x471cb1be862d1eb0d8691cdea1604bbc3a8e5b06cd507bb08df4a266d44641a4. Chain 2 (Bitcoin): anchored in block 953641 (2026-06-14T13:54:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3a669c70-2a61-4189-8be1-7ad238e61d53.json and https://artists.proofprofile.net/proofs/artist/3a669c70-2a61-4189-8be1-7ad238e61d53.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 0xb6b824d72cd723b8f12e3bd7277979b07d3caf58e0f628c40452e169081b5ecc. Chain 2 (Bitcoin): anchored in block 958390 (2026-07-17T09:35:49Z), 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/QT3F32504386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c2ac219b094937bf7dc512cd795948aa14615613006108e9cb22db08f7dc51a. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/QT3F32594379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5756fe1200284d01a1e09a9283d3c37fc10c244e13cce84f84d651109349b51e. 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/QT3F42558646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dfbbdbb0ae5095c80cb89f8c5a360503429fa887e4967af918c0fa17e33952d. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/QT3F52575784.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56fb273a723c84e4e067d6a2a82dd23149f063b80eaa891aa1f77c6729980bab. 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/QT3F52575785.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x123ecd07a2e090656287b4431ac81eb9d903ed18821f48a67efcbb83a0b207d6. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/QT3F52575786.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0db039fe52729e8d7c19b532228cc6a3ff972a4ea6af42016bac153e9605d0f. 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/QT3F52575787.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f80cc7ed91a4f3a9ac479873d019b6f6f3c2958ace62933b46941cd0b090799. Chain 2 (Bitcoin): anchored in block 959094 (2026-07-22T03:33:16Z), 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/QT3F52575788.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63e4e49a2bed031d92166cbbdb882fb5cda384ed29c0ae5d2cf53c0cdc113b00. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/QT3F52575789.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc93363a0f077afc55876e1aeb733a501d3488665dedc8c520d25d21112a978b6. 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/QT3F52575791.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2364280a6a37ab2183d0690f7d810ab044002f4300fa3052f847576b62aefafd. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T16:14:34Z), 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/QT3F52575793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83c4f3100c108afe0b4ee1d0209675e0c8f139909accce9f531c422b4e9cee21. Chain 2 (Bitcoin): anchored in block 959088 (2026-07-22T02:14:33Z), 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/QT3F52575794.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c9d5a002eb5c914df49c06261a93a06ec723fd8ff9cc0936bc287633c8d2088. 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/QT3F52575795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed64f4f4e21f9302e570dfde59e28a5c4abf3aace566aa07202ab92647f8ab99. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T14:03:35Z), 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/QT3F52575796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dcd72ecb1cd7fe36db210b9831ae70a8844a404895c8038e4baeb0e21db906d. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/QT3F52575797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa65b40f8e6a9a7062b9422aa6c25af8942fd5b79127d87d31b78888e4ed13f36. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T13:01:04Z), 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/QT3F52575798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37a195ff9df8b76a0423289d993d231cfe42752e7120000a48c09657ca2005e9. 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/QT3F52575799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6820e245012b535bf9ec23fb323aaf7129ba5da5a29f893f60f38899106e7589. Chain 2 (Bitcoin): anchored in block 958830 (2026-07-20T05:30:12Z), 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/QT3F52575800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2b90f5a1ff2c107c5a295d66e04f34dedd3029e6868f4cddf1d2b50ee11c439. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/QT3F52575801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bd8648f9865ab1a9c39c5718f39017e7a5c6d1cf2811ce3cdccea129d2d2f94. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T09:11:53Z), 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/QT3F52575802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d3d11de038bd4d9142d75158abe5ce8070ffa3d6f61b08a03aea7da9be92398. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/QT3F52575803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8569fd0a23992b88e962a9b6efb2e3dcbbc956f2165ffc66256eb5f4c488819. 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/QT3F52575804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddcd7a93299ffc253e47b4220f92f45a90cdca173b5089d31d30b1c5ea88b87c. Chain 2 (Bitcoin): anchored in block 957788 (2026-07-13T02:37:37Z), 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/QT3F62505837.