Zheani Isobel Sparkes (born 1993) is an Australian musician. After modelling as part of the Cara Delevingne–fronted DKNY campaign in 2014 and installing an art exhibition in Melbourne, she turned her
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 0xb6a4c2c8abf76c288704f4a7836cb4bd3076bcc3d7d94a3bad97867744438808. 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/912a0512-3d50-4a96-ab8b-47342f20ff9f.json and https://artists.proofprofile.net/proofs/artist/912a0512-3d50-4a96-ab8b-47342f20ff9f.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 0xc2e8f22f06e98bbadf669522b3e34a10e15b05621766e93664b43624f49640a9. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/GBK3W2101853.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd456f64d7cbb7c6fd6f38890481f001bf994b9a313379e5197c5e4e075846a1. 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/GBK3W2101854.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x753b3dc4fbb276c546e6a1f43f9b1db74a468e278f3bfc7eac56c09ab57f26c9. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/GBK3W2101856.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7a76bec0f58936b6f6bc056dc07388e744b0c9af5914477c9e5bf014246d9a6. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/GBK3W2101858.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf09d84e0b0f0fba58fd186f75fc70106f562885f4518c1d1ee64ab011d54cbb. 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/GBK3W2101859.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd3e82a2a39579aa0d48effff1c0ba5116d3f771c877cb599ea603e2864f0caa. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T20:38:50Z), 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/GBK3W2101849.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7867b4e6159ffbd5b134956024451d23f00e8b648d84a18adbd4284daef3ae7e. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/GBK3W2101865.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb860b4a781ef5d6dba7144e4a960528fa97feb15ee25c86619c925c46a9f3957. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/USKO12000030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef332311cc1925ce51848980263dc4efa5b2aace6a264b96fde5fd8201c9a6f5. 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/USKO12000031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f8bc6dad1e3de82906a5eb8964f1a97f36e0a569bd379d5286d81abe3b09f0b. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/USKO12000032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67b7550dcdb0eb17968fb9071846d5b13e7b9ce6b0f5443b8d79968e796ca385. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/USKO11900432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe509fce7bd2eddca105345f74c26c0630c1dfbc33bf1392a4cb40807e19bf84e. 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/USKO12000091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a12be80496515795550fc078e9a788f9183a12867ded0a89745984ce10af968. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/GBK3W2101851.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e3f34850655fd835ce67e52b60d02559cf0a98d4ad6af8952f163713ed74a06. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/AUVWE2301142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54e2bf72c3566e66b645a0e7e6c8218bf6d9519bac2cb3d28c7afe4a0f33d45c. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/AUVWE2301192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa1496677001d7fbd1d9d8b5494a77554c5b389afbb77d3e7d1a88b471df6100. 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/QZS642213695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf1534491d79f1cb1c2ed84c6184a68ea33b9fbf002da4eb6af9a5ad0ed545ea. 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/GBUM72005124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd82e4a72fd2086b8c956dfd05d988f244648b9f75aed7b2a1c26016b9d56e9a7. 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/BEDB22006006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf1534491d79f1cb1c2ed84c6184a68ea33b9fbf002da4eb6af9a5ad0ed545ea. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/GBUM72005124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x123496e917effe78a1bb36581f48aed90895d61cd65f6630c87969cf38d4d0b1. 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/SE5AY1900129.