Emma Rawicz is a London-based jazz musician, saxophonist, composer and bandleader. Career Emma Rawicz won Jazz Newcomer of the Year at the Parliamentary Jazz Awards 2022, won a Drake YolanDa award
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 0x47721b9e31d579df539c4aea9343c6b014e0c574ce4d6f1791c87094b18e8e90. 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/bbd72013-fff7-4c0d-b811-1efa1e70456c.json and https://artists.proofprofile.net/proofs/artist/bbd72013-fff7-4c0d-b811-1efa1e70456c.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 0xeaa520ab8965b562219de11ad8dc2dadbef9962d719c505c05c4c5dda5bb12d2. 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/DEA892300210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ca9c06bec25e7e74626ee35e737f70a447111287610e1c15904be9e3eb25315. 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/DEA892300211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07a2561c5b1861672fb1c5d28a5396769e132dd6a785a309ceafa7b0ab8e87e8. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/DEA892300212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9467c56558c1a31d24eeb895dfbe1228bc1eeaa008a9d00ca34353a8eaf8f865. 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/DEA892300214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b561a0299da128c82398fbdd16abbf48c3ac0640962fc6da4c7e33b0af82057. 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/DEA892300215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82ab56dcbdd9c024ebde7fde03dee4f6a69311776c9d61d0056297cf55401bd2. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/DEA892300218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x058a9e79cba2f2ace94ed4ec3675075ddf2ffabf728c566f20a28ff9a5823d33. 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/DEA892300216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5226c3815c47887e113ea047f82c5ed2d40e35e4cf936477c7e6c7c2ae2f8cf6. Chain 2 (Bitcoin): anchored in block 959155 (2026-07-22T19:42:42Z), 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/DEA892300213.
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 0xb9ddc3ec9b8d6e3244093ce95e601eb5750259bf87f64622a919b41cc69fea75. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:11:00Z), 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/DEA892300217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa85e37d03bed3323773cb4cc69c043a7a303adb6bb94d4bdef44faf75cbece42. 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/GX6FP2200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e327c1dc818c6aaf36adc5aa6e70dadf06c29a3734457adbc9a52d91e6a34f2. 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/GX6FP2200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x466c6ea8a99510204e574e90c49eddd306a5382109df7157a9a23dbd17bc8c1d. 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/GX6FP2200004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x106e4bef1ad7063b985c75f6a227e9099a5c859a2863a52343b0bf3d68e5ab02. 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/GX6FP2200008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4de7ed9f256c0c530bc6d980b55e450a5ea11480f1925c54197a0a10e35210ae. 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/GX6FP2200010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee30bafc3047a15d06aecd85f0c9e08202e61537c99f8cfbd2b733f13a0b4b89. Chain 2 (Bitcoin): anchored in block 960181 (2026-07-30T00:53:20Z), 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/GX6FP2200003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52aa9711f93e551adee45e1560442335d1a93114b6e7663d584725fe71170428. Chain 2 (Bitcoin): anchored in block 960164 (2026-07-29T23:23:05Z), 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/GX6FP2200005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62000549eb2ee105804eb3ea119b7f8de152b300379d6df364e8fedf5ced366f. Chain 2 (Bitcoin): anchored in block 960170 (2026-07-29T23:52:38Z), 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/GX6FP2200006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49b4c7324c0ff52a8b0ab0091b646952e071ce873d3c4f9162e4e0081d02c373. Chain 2 (Bitcoin): anchored in block 960181 (2026-07-30T00:53:20Z), 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/GX6FP2200007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7f452df7403f709c708a3591b58dbfce2a91d354ac99625b0af598d11fba5f6. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/GX6FP2200009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68a6e3169c17d4b1bd8965db740f759a47e9cbcde1c12729cff2b32831e7001d. Chain 2 (Bitcoin): anchored in block 960185 (2026-07-30T01:32:48Z), 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/GX6FP2200011.