Charlotte Cornfield (born October 14, 1988) is a Canadian singer-songwriter. She has released six albums: Two Horses (2011), Future Snowbird (2016), The Shape of Your Name (2019), Highs in the Minuses
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 0x04c2dff5cee3b1c1b945ed65d4d6721b7b8e2bc3faa04f8d58046ecd0f62f988. 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/af568068-936c-4dc0-9932-cdf07ef6b792.json and https://artists.proofprofile.net/proofs/artist/af568068-936c-4dc0-9932-cdf07ef6b792.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 0xd2fcfc3411ae4e10119c8e2cdeba8b05bc58661903683cd43d938c1494e00ef7. Chain 2 (Bitcoin): anchored in block 958666 (2026-07-19T05:00:30Z), 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/CA4IP1000012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x383fa6bd16d00d39674cf3af82ccc5934805012226fa0713d3fc950e1db79096. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T15:21:22Z), 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/CA4IP1000013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2f2c0ae0d7e4f9f3eb04436afd32cedd9d12f2d65e9dfbc94aea30d514e923a. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/CAO371812602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf373fb52359f0bfca6cdd0bf73f9482fbd69d9188328363d10da2b7b47100fef. 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/CAO371812603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3047ebbc7953b8216a181138f8d6622abbafa51c2ad6c3f6b2c33fa709a3cda8. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T14:33:04Z), 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/CAO371812604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce9b947c692d54be99117c4ddce02f825dd29cad93e3d16b8b93bb07acf9ad36. 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/CAO371812606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57807a53305a74cb2602ed72f9e52526a5821e06e5c938cd2c9909d1bc3e151d. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/CAO372013602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x689efa1d4176639b6483ce9372764b493b1cdab55563dc3ad8eccfaf7c3ddf78. 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/CAO372013601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57807a53305a74cb2602ed72f9e52526a5821e06e5c938cd2c9909d1bc3e151d. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T23:51:18Z), 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/CAO372013602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74f3ded9b7c98615db9cc82c4463ef6ac0f4fae56a702b017ff3848cfe33b056. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T02:01:48Z), 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/CAO372013604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc95fb41d5d72e91160bd41bee74e5f48bb4be9295be0903c98082d475b5c1303. Chain 2 (Bitcoin): anchored in block 958054 (2026-07-14T19:33:24Z), 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/QZAZS2108101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5892698ebe083dd8b18a5d9b8ebf42f47be5ed391f549b6d5591b9161e6b0a8. Chain 2 (Bitcoin): anchored in block 957546 (2026-07-11T09:35:53Z), 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/QZAZS2108102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x860834225b7669ddf3f537c165c492e5ad2b30e27d2c4af824b4971147e5edd7. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T19:01:35Z), 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/QZAZS2108110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f25401d87d492b7c7bba6119a7efe0eb1123d9ba00b8b5b3ba170c2f26517f0. Chain 2 (Bitcoin): anchored in block 959018 (2026-07-21T16:56:50Z), 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/CAO372015301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x507c2de11b399c43608a52d0b65ff0a6a621a61bd0f09f6e0c37f1993431accd. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/CAO372015302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85f054256ed0c4d7d156693647ebab1da9d28a1c60c5b4f60ec43f196b45c56b. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/CAO372015309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc68b2645e9705ee3823a3a60b4864e325a1564b220cceab7c20daa681cf42e5. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-16T00:05:30Z), 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/QZAZS2309007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaaa83540a73f2e86834dedc3a0f6fbab5d3832a60d596828df64477d52abba32. Chain 2 (Bitcoin): anchored in block 957546 (2026-07-11T09:35:53Z), 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/QZAZS2309008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61db86205245a012759e452b38212d2f56b44f06308798f0e99dd8f7ae4b9e21. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T07:01:20Z), 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/QZAZS2309009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87a83350f398b803bfb3471735dd685aeacedf72283eff2eb86a2d66059d457f. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T08:06:40Z), 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/CAO372320002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49844cd60ef4723e0abe600eb568fde444c2c31e500e5a20a03876adc0f49750. 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/CAO372320003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c7c5b60ae8ddcaa793da3444ae1c98377fc9c3b25c06254a276b84c6cca59cb. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/CAO372320004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4df2d7d3413fada9db8d1aee8a7df5f21aa1cffa1853e856cc0051018339691. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/CAO372320005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8bc1bf8ff000a8cdfa234112c68f2ff14bd213b609ea7941a6bbc87054fa284. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:56:27Z), 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/CAO372320006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8f0dbf1568345ed8d3f289499292021d6d64df081c8a1ee04aab73afa9d8494. 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/CAO372320008.