Orion Sage Ohana (born February 2, 2000), known professionally as Evanora Unlimited, Marjorie -W.C. Sinclair, and housepett, is an American record producer and multidisciplinary artist from Oakland, C
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 0x9772894a56af777291f9828fe5456b0d14dd3f3c44ac1d58795b8054a9651d62. 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/456ea65e-930f-45de-88a8-6107d78618ab.json and https://artists.proofprofile.net/proofs/artist/456ea65e-930f-45de-88a8-6107d78618ab.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 0x1add7c33877488921dfc50a5808cde5dafbb1408873478b72e6df0cdccb10808. 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/QZK6M2050254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc67e5300ffcd250e26d4e19f7635e02b60af9ffa880390d1644a521118d03b8. 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/QZK6M2050257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3996d4003401853aaca3022e081f7499f73aaa9d7d256e0e5926edd0432830c. Chain 2 (Bitcoin): anchored in block 958911 (2026-07-20T16:46:31Z), 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/QZK6M2050258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb6e71153af017d1d6507dbd066a4a9d5ed29fd49f4ab0e75c3d7a6d889969c0. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZK6M2050260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a81a218eacf092c8bf22bc816604816cb3eaa281f3e90d612c8adec64ccb565. 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/SE5AJ2201924.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2989c55fcc9b889e4a8833bac3fed1eb63de092f05f0a5482cae9e709a521f34. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZDA42438710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb113488b13572a011b39d74181abaaebbcd5c5535041b7082fc8d40d8b32697. Chain 2 (Bitcoin): anchored in block 958686 (2026-07-19T06:43:29Z), 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/QZDA82450781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c2e715c74be914a17202e8ba161d6d9af542561287ce97acebfa90963ab6fbc. Chain 2 (Bitcoin): anchored in block 958658 (2026-07-19T04:09:09Z), 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/QZES72410223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69e79ce49441eac88bfa68c3ce0485f458b39556adc43744316271cbef2f6a1b. Chain 2 (Bitcoin): anchored in block 958653 (2026-07-19T03:54:23Z), 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/QZES72410224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4854d2d47f8d9949a183c3893989abd6b22af02e3c8a77a19078292f4bccabf. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T17:45:15Z), 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/QZES72410225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe656251766ec5342342677e4db266dfbb72dfd491ea1416d715e59c56deb1e7c. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T17:53:56Z), 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/QZES72410226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50ccdf793d4aeaa49b44c418f23c67aeb4c78895bc03e0186fce02363675277a. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZES72410227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a81a218eacf092c8bf22bc816604816cb3eaa281f3e90d612c8adec64ccb565. 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/SE5AJ2201924.