Kato or Katō may refer to: Places Kato, Guyana, a village in Guyana Katō, Hyōgo, a city in Hyōgo Prefecture, Japan Katō District, Hokkaido, a district located in Tokachi Subprefecture, Hokkaido, 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 0x2589cf45f9da295de3326b4e4fde4681c7a1276973b57a286aacc0080adfa054. 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/a07f6818-27de-4873-9ba3-82d473b5f53c.json and https://artists.proofprofile.net/proofs/artist/a07f6818-27de-4873-9ba3-82d473b5f53c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Sjus (feat. Ida Corr, Camille Jones & Johnson) - KATO Edit
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 0x77876ff508b7d940327f19f34019ee73607b1d7e33d0fa02d8ca238f1f7a6e13. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DK4YA1102302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b9b02a5132c172bc994b3c3a27a8320e89624f22cbf1cdcef9777ff8f313009. 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/DK4YA1102303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73832b85e2a950ac51125d94493033116e9b0d93531f6170eafbc65b8c0ebd33. 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/DK4YA1102305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e05cc94a06b308e7fc5ea0b386d38f261e726376931a35a6ce1a930a78bcbb5. 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/DK4YA1102307.
Hey Shorty (Yeah Yeah Part II) (feat. U$O & Johnson)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24fe9d8b0f49c0c97808737360911cffbbbe0c79c6c255a76d25bb087a69f5b9. 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/DK4YA1102308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x609f3894e9b3c09f310cc23aafe21322594e2d43f8a09e36cbe12dd5b43aeb0b. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DK4YA1102312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef2381b0bdfbffb03e108fd7534fc0d413a2ef8d80426b2731008ea361fb1445. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DK4YA2284301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31b24bf08dc77fc7c72a7c27e84bd6cca0bce119de1d1eb2467227d81f92a0d2. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DK4YA2283801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfa743e927a80fd9a24dffcdd9ed3b6f859c8a2bba84ba5b8d938eee1086ff2c. 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/GB2LD2110390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b2efc2b3478bb5054861829d2ad28a7ae3482829c1479a84c4f5f6bcadf138b. 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/NL1ZN2001334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f57f5628160cbee5c750a4b7ddf2b59c1fcdf80581560bbe1c13337ac30aa1b. 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/DK4YA1700814.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd92df0a071965cfad42760390b7bd1b78b455f7f9b41d51bffcf33bd789c620. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DK4YA1700801.
Dimitto (Let Go) (feat. Bjørnskov) - Radio Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d0db5a895f8c156d429977d839d540d9307f66fa02a9a0b8c42c7a6d6e3c1e2. 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/DK4YA1303501.
Never Let U Go (feat. Snoop Dogg & Brandon Beal)
Desert Walk (feat. Outlandish) - Radio Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6f5473d13a616afa679e76974c8359f6fda8fd7f8f6a066fe83962ec5ea58d4. 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/DK4YA1003101.
Turn The Lights Off (feat. Jon) [Remixes Part 3]
Turn The Lights Off (feat. Jon) [Remixes Part 2]
Turn The Lights Off (feat. Jon) - Radio Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x814481f91f4cf6ca87539d775c79779589d2aa860aa43b6775e933eb01c805b0. 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/DK4YA0904101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf784db4ab64fc9244c71b7f788babd8c6998ebf3fd0b192ad45a6cd91179a38b. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/DKK1H2400103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c11455e3c7b1510ac5f88ebb64b5f55e2cb00f47c95acb80e3451e1a4f92af0. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QM4TW2270633.
Fuck Hvor Er Det Fedt (feat. Kato, ATYPISK, Gilli, Ataf, Mass Ebdrup, KESI & Sivas) - G-Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64342ee51b68e7d28b42a5ed4ca9c556b6dbe0c66adb96d65b0ee2f24a1654d8. 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/DK4YA1207121.