Sarah Catherine Elizabeth Ross (born 1974) is a New Zealand academic, and is a full professor in the School of English, Film, Theatre, Media and Communication, and Art History at Victoria University o
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 0x95477db6181333420eca96027a920210337863a604df5e1a56d839e4831a2d8c. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/78fad797-73a5-4f7e-8814-a744e819b1d6.json and https://artists.proofprofile.net/proofs/artist/78fad797-73a5-4f7e-8814-a744e819b1d6.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b03cf3bd0b84d07c1f83c2ae34970980859b8ab78d3c0855acf8bd19c840e0a. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/QMDPP1400158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x157e919068daf254df54ee4b260e4bd81e2bbefeb5ecfaa5e1e3665e6a7a5d0c. Chain 2 (Bitcoin): anchored in block 957756 (2026-07-12T21:36:27Z), 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/QMDPP1400031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1b2921d4c2aaee46258c82fff2b1af8b8eacfa05af923d592e67d4dd4e38c17. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QMDPP1400159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb035f33b53d4c3305191fdcc5ae0119d635feab659e318bb6a0d7598a84fd5ae. Chain 2 (Bitcoin): anchored in block 958798 (2026-07-20T02:41:39Z), 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/QMDPP1400094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bdfac5ca3ccaa06e9746cf97e4f8863ab6c5ef793be8d2a673e7f46b36dd5f2. Chain 2 (Bitcoin): anchored in block 956862 (2026-07-06T02:10:22Z), 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/QMDPP1700475.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76f67ba1b71fcc85afb584e3ad4e8f11ec1370ea775d0d4e0d53932093101517. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T19:21:01Z), 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/QMDPP1700551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccae656256251574192c846b65dc26f51455103f202b42b19b53dde2d77f4112. Chain 2 (Bitcoin): anchored in block 958812 (2026-07-20T03:24:09Z), 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/QMDPP1900884.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1b2921d4c2aaee46258c82fff2b1af8b8eacfa05af923d592e67d4dd4e38c17. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T05:05:31Z), 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/QMDPP1400159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bdfac5ca3ccaa06e9746cf97e4f8863ab6c5ef793be8d2a673e7f46b36dd5f2. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QMDPP1700475.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf136a28917b6a560c0053a73040ab2c199da87d111fed3eeb50bf1cfd7df87f4. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QMDPP1700555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e7960204f739e499b8d64e4e01f2c7e5facf6dcdc189c602e8e7ef21f587d6a. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T23:10:22Z), 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/QMDPP1900885.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa24f23a614e8764f3795fdeea1ca05f302c381e5205a85154245f7378076c59d. 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/QMDPP2101191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x964ec7e63efb5e4429b513a64414a9509f64f9922748e35cd4b9984a76daead0. 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/QMDPP2101260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x331d88549e6b79cef1da47496a728b0b12de5d7d87e0c9717dc0eb157b1274af. 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/QMDPP1400142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90928f9bb0a564f9830adbf2e20a29628a56f2eb733c49d8ffd5a99fb0fdc803. 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/QMDPP1300027.