Kuro may refer to: People with the given name , Japanese samurai , Japanese theatre director Fictional characters Kuro (One Piece), a character in One Piece Kuro Kagami, a character in Kodomo no
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 0x4fe19bcbf9bfbe46eea5d4211493d236d7b1d877fabb4a9b98a7257197954ebd. 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/95e41362-d9cb-4e35-85b8-eaafe432434a.json and https://artists.proofprofile.net/proofs/artist/95e41362-d9cb-4e35-85b8-eaafe432434a.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 0x6dd96295bb138c313dc46cbc2ba7c0509c62bf5370575313332cbde3400cfe75. 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/JPV502400102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2889219758aa22ca03f6cb90fe644221d5d8389762559349eb171d967f5008da. 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/TCJPH1811149.
now - Shin Sakiura Remix DJ Mixed Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfce09ce6a50fe1116522d1be7105d85100b90d831bcb4651b123c29a9a5bfa18. 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/TCJPK2097230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90e2c9c73a030117e8cc09330420a4ad1640c93cc3999aae73e785d63bf7b931. 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/JPM591001413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb638d9ace4753a89e4e42dc58f35d21213afb04ce7e828fc759456cb36bbf72e. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/JPWP02000836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1f4a29011cab7d4ad5f05b59b685f9c8963829cf6c6f40292567927252d8c66. 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/JPM591001415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6eb4f1cbf51a8295ecfa42a95fc630f8ac7a2b33a1300f5e438ef0ffb07769e. 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/JPS801914365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4efbe816c49a9aed3bf99f265e82e8845a9a5e083d33f6667b7f81774772894. 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/JPV501900366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3072db688bc9ebafa988e84e888aa80d65e99265df236bbda01d8faee8ce440e. 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/JPM591001416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa79c3f9b887a07d20f2759f6f510354ce432068270fd2fa092a4e4d1bd6f897. 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/TCJPJ1976273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf32f2a3fbf43e7bae2a88026ad6d1ccdedf3572ab95960718dcd6609eecef57. 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/JPV501900365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4efbe816c49a9aed3bf99f265e82e8845a9a5e083d33f6667b7f81774772894. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/JPV501900366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf7508cc4ce7cf4b8e97c79a5276572885e942ca1d770fe77b8ba4761602d1e4. 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/JPV501900367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33168ae0a6c65ec363cf207a4f6fc767b462a766a9d6fd4a107c74895d8513de. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/JPY492400007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd59e3f1817a07719562b0c6937431cdd3b7228d413d3c0203b8fbc8965f52db. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QMBZ92360147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6e5aa79528d8930825861f6f67fc0257e4a5a1bab74827a218e6cbc7e3c464a. 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/QMBZ92287358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d574e4c838f0a0b5f9570b6a72bba128b53ab63f66fb9ed2b00a2239ced0bee. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/QMBZ92264095.
(You used to love me like) Water (feat. GOODMOODGOKU)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77619442053a608d33c16fe6c1790994726cb257b2eea9a0c117c8909940665f. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QMBZ92289576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x426492a0891b05e9f1f25e9c8c9ca2c42a94caae8f3d1726aac8b7d600f1cb31. 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/QMDA62226472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d574e4c838f0a0b5f9570b6a72bba128b53ab63f66fb9ed2b00a2239ced0bee. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QMBZ92264095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4efbe816c49a9aed3bf99f265e82e8845a9a5e083d33f6667b7f81774772894. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/JPV501900366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf32f2a3fbf43e7bae2a88026ad6d1ccdedf3572ab95960718dcd6609eecef57. 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/JPV501900365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26a18f76d52c2d05f9a947caa13c16d93d9953e4999e40022ea7a7eecf43348e. 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/JPV251800308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbf24a7ea44f803d543ddeb9f6ebc7df6a8e00d26f2efc88a30c14431d1ac485. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/TCJPR2263495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e8a7f0a3bf62af08b00d8f2b6acbd22019da2cd48ba6d3de427cb2603c03cf4. 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/JPB621900879.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa840dc2ffcd58bb7126af5921a838d873cc23cb6072e7698e8fe4d2efce4b1c5. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/JPB621900883.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0a40a9d4ee88a6045f743132d1619c502a6db93c025bda073349b32b8b68442. 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/TCJPQ2290300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6a1075712319b5a66c61547d3a31cfef6b5c160091aa897505b287abafdc088. 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/TCJPQ2290330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x815c6e070241873f67ec8b3b6432bec833e040bfa3ca976b0a96f1d0648acbe9. 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/TCJPQ2290366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc284a922310f8d9294f89fd08bef0b1b07a392f0afb9290c87f6074262e2ceb0. 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/TCJPQ2290442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe41a16bec1756639da3ed324b6064bfe5d970c1f143e4309fece5b7788d95b9a. 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/TCJPM2030819.
Metamorphose -TOSHIKI HAYASHI(%C) Remix-
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34d5b9a3e8251597c0699c935a0135eb37ea59576ddfa902e5cfec8c2ba938da. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/JPS802000585.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa840dc2ffcd58bb7126af5921a838d873cc23cb6072e7698e8fe4d2efce4b1c5. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/JPB621900883.
Meimetsu (feat. Kuro) [ALL THAT WE WANT REMIX]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e02001e40174b621f01e71423a1648ab550fe74871a2c96f0faaed5b2779433. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QMDA62415921.