Shuko, Shūko or Shuuko (written: 周子, 修子 or 柊子) is a feminine Japanese given name. Notable people with the name include: , Japanese actress and lyricist Shuko Akune (born 1959) American actress , Japa
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 0x961d02b4b429cf4c3d11a99dbfd2b0f878e91f23aa184b6cfdaa3f9512ceb481. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1285e0f3-351d-40a4-9c3c-b79efa18893d.json and https://artists.proofprofile.net/proofs/artist/1285e0f3-351d-40a4-9c3c-b79efa18893d.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 0x05fb67fca5ba535b229365f9df78a8d9404e029f181bfb110fa1f3cac277df39. 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/FR9Z62100587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd13cbe024a4464a44415b8ae3999d0257c5f15d1c5a510a728a3c5e8d2782c6c. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DEQ022003888.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81fdd4784e260244626c0b17b99c7acfd2872740735314c7e737459de6a61903. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-16T23:13:31Z), 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/FRX872130065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61a9734e30b83f5451a2106228329dcd2dd7561c945146c1065a97a370f94e40. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/DEQ021906995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x455b2dff82b33fb4a4feb9842bc408947e3b8efb992eda41f3f7ec15d0d359ef. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DEQ022281564.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ecede7cc082e1c6494011c1eba86573608dffbb54574b296bd2642da1b16a07. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/DEQ022381452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ecede7cc082e1c6494011c1eba86573608dffbb54574b296bd2642da1b16a07. 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/DEQ022381452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed58abb9c00308b915bbb2a58c5805d1ccbe72b234c2ea68f543d2d3359d5b0d. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/CAN112300378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95d944309070e0ffeedc04e508af22fae9f6901b7b3a16041917ef2fea275b69. 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/CAN112300092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4744410b41b99ab4b9a649b4eb328799af7ea61012fea8f5e1ad54478150c2d9. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/CAN112300093.