Dian may refer to: Places Dian Kingdom, ancient kingdom in modern Yunnan province, China Diān (滇), an official abbreviation for Yunnan province Lake Dian, a lake in Yunnan Dian, Armenia, a villag
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 0xd085d5e2dec9e31d5e01ec390200a58590fa02c7aa2d6c2408972ad056b8ba62. 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/e58ef899-0604-4a40-8a3a-7934ed975e8d.json and https://artists.proofprofile.net/proofs/artist/e58ef899-0604-4a40-8a3a-7934ed975e8d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Urban Tears (feat. DIAN, Ryohu, Holly Q & IO)
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 0x71f927501c6fa9d36d61e9a96946d8ec858724f46cc302da7ed900deb30450c7. 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/JPWP02202174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cec320ddc46e33a801ce89ee6c93c09437c2ae0a82ad7d4297a52cd7b47510f. 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/JPWP02271451.
Soul Assassin (feat. BSC, MUD, DIAN & DONY JOINT)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13de0b5ae7fdab4bb7092b944893808bdc4f9df1b49bf49de5fd9921771867a8. 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/JPWP02202176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdef0e2c266674714fbae8061429573dce2bf7ef170e55bda2d89e66f0fc54853. 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/JPWP02202178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8bbd5f000e8d487eb02a7823b462df77d50fda5d05ebe6f2b6b736b10642189. 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/JPWP02202180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37fc5fafa46a102a62aa3fe4430661878bc8c1c9e6c699c7e127b18d0ade2745. 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/JPWP01900984.
Couch (feat. DIAN, Ryohu, MUD, Neetz & BSC)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa73d134c2027e1ca7d66b00e9ab85103450ab567a081aa5c3e529e352cd7f804. 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/JPWP02202177.
Fluxus (feat. NEETZ, DIAN & DONNY JOINT)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x896d84876d97b39df223acf9579a601470a77804fb76c125848772b02208f020. Chain 2 (Bitcoin): anchored in block 957055 (2026-07-07T15:12:44Z), 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/TCJPI1953566.
Kapital (feat. BSC, KIKUMARU, DONY JOINT, DIAN & RYOHU)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e1bc9f9816176f6957fbbd954c3a175c289993a8a228d75c56bf596bc6d2291. Chain 2 (Bitcoin): anchored in block 960153 (2026-07-29T21:57:12Z), 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/TCJPI1953567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb312b6e284c9c8f4386f45cbe28a2cb2e104a7755aa5b4ce3856f9316c926bac. 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/JPV502000841.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4f4cfe974a267bdd7cdf575b26076553efe7f0dea922e0006799c5bc94bdfa8. 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/JPWP01971061.
So Far (feat. Holly Q, Gottz, MASATO, BSC & DIAN)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa99ac720ce08b1d71a3824b548e6b499f0cd5897bfdbc926803ad01f0393f7a2. 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/JPWP01971069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39395368be172bf0ac8fcf01d736aa31c2ae64af0559d4e5014a43fb150481b0. 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/JPWP01971070.
Faithful (feat. IO, Ryohu, Neetz, Holly Q & DIAN)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebb540ae927b0f9d38f1232438e464e71ad50d2bb30a68f64ab69a5e968cfdcd. 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/JPWP02100161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72748dc668e75cb70ee18aa6a6c1c2fbd47de32ac7a8948f93de4881b93357d0. 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/JPWP02100166.