Yuki, Yūki or Yuuki may refer to: Places Yuki, Hiroshima (Jinseki), a town in Jinseki District, Hiroshima, Japan Yuki, Hiroshima (Saeki), a town in Saeki District, Hiroshima, Japan Yūki, Ibaraki
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 0xe1e0ba39974743c2408ca89e6c6752bf8430bbe1ca2a056819b0644ccfabbf79. 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/28c5222f-1a47-482b-b14e-916811e6f598.json and https://artists.proofprofile.net/proofs/artist/28c5222f-1a47-482b-b14e-916811e6f598.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 0x862028a1be7653cfe7d9916962f9e8d8bc5951e716d151135a0f6b403ccdc6c6. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/TCJPV2319282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2476d8126f191ad085d4ac752c6abf012454d78f3ccff7f45ecd67a1aa05e2ca. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T05:29:55Z), 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/TCJPV2319313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf31fd5e5be450f34a2e9492384cfb45c27faa78a9d4f9ae191030627fa3751d6. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/TCJPV2319426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa686cd4d0f104615b820aef653627faf9b70f0786aef767ba809e37ea8674e05. 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/TCJPV2319436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5808cb30495f2ad739c508ebb1963a7b8c2992dae6be093a3c91470d59ae6a9a. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/TCJPV2319447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x559a75972c8bad8999b6632f0001717abd382268b6235d137718d9e3fcf16413. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/TCJPW2394828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x301f890e7edd3c84023a078b7ded23a798034011c873c82dc6efe4d42a955185. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/TCJPW2394841.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b9320c15f276987fd94e8d4989ac61032b0db261cfeececcc8bf77cf3881354. 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/TCJPZ2467282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56119a63eb8b3af2dd096c2a8a4e512b10880c39ae03af069d466ddb21fd6d2f. 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/TCJPZ2467284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd09f389811f5edf3515ea1210bcc0ad8de198d011607f7811b36934a14a0f253. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/TCJPZ2467285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9053c6f6ec6f323e553f7d80c0298f49a80ac3b769a9a2fc1bf4088d705834d. Chain 2 (Bitcoin): anchored in block 958197 (2026-07-15T20:40:29Z), 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/TCJPZ2467287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14f25f5d9a5f5c668a3c73ee5a09f2a728f439e2c9fa8e353e4e0b4da21d9e4a. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T17:59:52Z), 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/TCJPC2414718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5ef94a901ca1451c8c8e6d5973164f8cb70367aef9f5b1d2ae515ac406249c5. 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/TCJPC2414723.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2e44a0597ab25648b96d823e80591db52506e4c9d669b9a280d76f26c8047d9. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/TCJPC2414739.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9cad3bd67c93b707e4444acd66603f904cf0cfec39389950bc1464981cb6f7b. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/TCJPC2414750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x293984ce3f5f6f70cb9acffca5cfa733b9b4e83dd293440767b7b0cc99e1ff0b. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/TCJPC2417015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bdfb3755fbb416d9d675f5eb65a981e6fbf6a241c9097b4d66aa94c05ac04c4. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T21:20:45Z), 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/QT66J2560145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b90194a41913bb79ce82278000d49e9533bf5c2bb0d74b2cc7857d00333d2e6. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QT66J2560164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe94fb140fecd4ef0895708d93f050121cdd8b3d71762e43869ed696a35db74c8. 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/QT66J2560177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50d05994f00b0ec5318a172e264668bec55eff7bb32a4f55551db649d1388d93. 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/QT66J2560198.