() is a Japanese manufacturer of power tools. Founded on March 21, 1915, it is based in Anjō, Japan and operates factories in Brazil, China, Japan, Mexico, Romania, the United Kingdom, Germany, Unit
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe69cefc8761ab82fce11b12adcfc54be258d4a79108ec802cb2ec0f88723adbc. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a8071475-4fea-45f6-9d41-e3752898252c.json and https://artists.proofprofile.net/proofs/artist/a8071475-4fea-45f6-9d41-e3752898252c.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08723606a547c565120d48e61d033ec963faa8f90d1c4d3ce2368fc41308502a. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T16:46:34Z), 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/TCAHS2396852.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x394cf82bc5d0ce41002e835e83f0c1dc8a36909efe9cd0c12fae344c9fa4d63b. 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/TCAJB2405707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3a98d1d21c001c375753bdd0d8f4a1a9c5871b637e6aec1720b96b0107b7129. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/TCAJR2563437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x318c296a40e5964a09ad9701d2ab4bd4223f88140a4f1e1b9b5ee74f299a9512. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/TCAJS2563208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9820fc0c12dd255e10cec5d19e3eabace5c8a84df94c9e258e3875b75778180e. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T10:11:17Z), 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/TCAJW2550093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe53d16393b6162c1f49bfbfbc61b15792c8b9741cae7dec5686fe7ad8e0e1fd. Chain 2 (Bitcoin): anchored in block 958880 (2026-07-20T15:10:12Z), 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/TCAJY2502043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7adac6d128cf625de24fb7e22d0afe0c6f217f298b10ca77896f30480885591e. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/TCAJZ2502709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76a66af0ee4e2e7925ebdff2ef03afbf36ee8eabc54a1870da8ef4bc7b54d119. 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/TCAJY2507451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17ddc28045e2c2c6c219987cca8409a1ed294204e29db27acfca9bbe9e2e6bbd. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T21:36:52Z), 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/TCAKB2527566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x658c5e0097bca9de9e3bb144dbb3d5aa7f347d5d0045822e52e8c195a0bfb54a. Chain 2 (Bitcoin): anchored in block 958242 (2026-07-16T07:48:59Z), 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/QT65X2544798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92bcb8bf86b930746dea4b7642d04507c0b6d0958936e8c75026ae9226464ab7. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/FR2X41991443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ed08286b4d866e2916fbb2833ada6d37d7d37ea1ce1b698cf403b86e8cde014. Chain 2 (Bitcoin): anchored in block 959152 (2026-07-22T19:05:05Z), 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/FRX202233539.
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 0xcd8d3cdf43df8343f5e0c3305636754842830373cb2ca930306da27282dbc655. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/FRX202295396.