Kassian is a given name and surname, a variant of Cassian. Notable people with the name include: Kassian Cephas, first indigenous photographer from Indonesia Kassian Bogatyrets (1868–1960), Eastern
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 0xe92ecc303c834943e57e3b2e33439eecd1e967534c16f44d3db53255105ba1ab. 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/f311c53b-ab6b-4d63-885c-8c9f0df7c49b.json and https://artists.proofprofile.net/proofs/artist/f311c53b-ab6b-4d63-885c-8c9f0df7c49b.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 0x01ba2ab40b582febf69720bfa8d23ef2d675f2fe6221baa3cecc67a00120cc13. 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/QM4TX2436674.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xceb2f6a92f3e39daf2e8755fdb4c7f6f96fef1b4f1cfb0d7d30d9c6c6f77081f. 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/QM4TX2436675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07000f732e5950b2a657e445cf9c052001d3b19c73b810ee52d209b47e889222. 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/GBKQU2324331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa29fcc4ff427905fbb39deb4f3ddc209d3da6cc47f73cd8fc79f63916f333f9e. 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/GBKQU2471711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e1410e766454a8faab2b6e80635df6a4a69f3ecb635d8e471b4244fc59ec96c. 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/UK34N1800995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a657dd8d0bb56c74bcdd04dc2b4260649de6f25f2dc6839444f93ebac1e5bc3. 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/UK34N1800996.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6de4c4bd6b5d410d3b3db25a7607a2ea423c833a69dafc6794e15e9faa474e2a. 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/DEG932400380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ec59fb7f13c4a6bdbc917f97c0f14fc0103c47cc145f216f009641f96844f31. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/DEG932400382.
Off World Vehicles (Manuel Darquart Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10d8525b1dfda7aa531adc28536fd2a84fc71e9ca520a889033b50d8ca59522d. 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/GBKQU2248339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2035482cd76684e922e896a20e2fde9519c0cb1a7988290d38c842dfd693b888. 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/GBKQU2209183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87acc5a2d5b4f9954b2f2c8308ad6f6cbbc285ffacce49bc8452625dbcdb69b6. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-17T00:23:41Z), 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/UKN6K2001470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf1bcdc507f4446a6e940e15f505298c82e5680bb67561f4529c47094e11c750. 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/NLYV52000017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90ec790a3a4433a1c16a52d7c113c969ca1848c4d00518270e71e37a5ac20417. 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/QM4TX2087484.
You Treat Me Like a Fool - Kassian Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77885e0a4c17aa2da537846a98f5107a5d692329ba992bd9baea0eefca6a161e. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/NLYV51900004.