Rachika Nayar is an Indian-American experimental musician based in Brooklyn, New York. History Nayar was born and raised in State College, Pennsylvania. Her parents were professors at Pennsylvania St
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 0x57e4d6814ab5bd6e54e4f8b15b334de5d5cf8a92620cb6e84fff2b5f6460efa8. 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/9152313d-d0a0-4d7f-9187-a3b6475b8871.json and https://artists.proofprofile.net/proofs/artist/9152313d-d0a0-4d7f-9187-a3b6475b8871.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 0xf0d9a113a459a08725828f64add02ea6c11e1c6c54dc1452eb91462fafedb82b. Chain 2 (Bitcoin): anchored in block 958122 (2026-07-15T10:57:04Z), 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/USA2B2060561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0355edbde79320a42d8805fd998b6902c817a3f946d4d9dc748ad4f2a4addf2. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/USA2B2060564.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x219ce3b8f15ff4bebae38d4a4af913744e9a1ad0209acdacc233e0a8fb8db2cd. 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/USA2B2060565.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66c2e9b667e64dc19baf57536c29df18980b873af178cf35305857c435f79cfc. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/USA2B2060566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79a88903f05d69f7a9ae422742133e2d88c69c6144231e2ed2a03883f02eaf76. Chain 2 (Bitcoin): anchored in block 959009 (2026-07-21T15:46:36Z), 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/USA2B2060567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda27dd05888060827e1391278407ce539aadfe573dcef214e9f215cb8115d30e. Chain 2 (Bitcoin): anchored in block 956404 (2026-07-17T02:53:55Z), 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/US6PQ2100088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc945bb1a0b1dfeb75b72cc3c59e6ec5589bf4a5ce134cb3dfc36e04a2caec913. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/US6PQ2100089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x438c0478094ee6bd2bb6a7e00e840864a3449e83697c29873f3491ef052ffd3e. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/US6PQ2100090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcf20a2a0661dcd7a26dbbd8b7104e25df336e030b703c25b2abd981643d942a. 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/US6PQ2100091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cfd1b6b0fc3cdb0e86f0cd83c3623acacb56c46dfc1fe7c401226dcba7f51b6. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/US6PQ2100092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x158c783b3b6fe77cddfb6804d737daba96bebde152b43b524d581211c251bf82. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/US6PQ2100094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9db9d86ad48b75c79ad7bb34848b3a00a3223863792b261bc6bb66357c125a3a. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/US6PQ2100096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6221a5dd27107cf49a9c33829eaedaf16fad06d453a71611819b4e344f4caaa6. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/US6PQ2100132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17056d01140abc12e596efb17db02a1ab7927ae531367e408d76930395367ea3. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/USWEX2200062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0916120c62b5f912d84978b439219163c53f443fd1882924ded4153d1d3f74f. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/USWEX2200063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b6f08fb3cfc6ab1dc1db71770bf15956d5ee1151b41a0737bedd000fb8572e4. Chain 2 (Bitcoin): anchored in block 958627 (2026-07-18T23:33:54Z), 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/USWEX2200064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a8f48721338518e05b972e5566e816057e0184e81dafbb3614a1c54f4fe9ae9. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/USWEX2200065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93802d02914a53c04e4d30a7252e86c519663f8fdae5ced11655acc1a1a7eda8. 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/USWEX2200068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf22c627e2f1f6f78a615d049509bac7743b029e44a3232c567b1d34ae5639e3. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:23:16Z), 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/USWEX2200070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13cdd7ddc655829ecd3a711cfec50c073e83aebd712fd3e5b38db2a88c3e73ed. Chain 2 (Bitcoin): anchored in block 958822 (2026-07-20T06:53:47Z), 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/USWEX2200067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65ab70491f66b698910165e446ef9d4ceb2feed39a2abcb31be57ce98bdebb5f. Chain 2 (Bitcoin): anchored in block 959052 (2026-07-21T21:44:42Z), 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/USWEX2200069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b0ad2e17675aa82bd29c629a2db9bfc2e5946da930eb711f952ec9bce9b76de. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/USWEX2200128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc97b9653dfc463c628ca2cceb0fbc28e6df24ac19f6b1545fa040b9c697ff6f1. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/USA2B2404179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc97b9653dfc463c628ca2cceb0fbc28e6df24ac19f6b1545fa040b9c697ff6f1. 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/USA2B2404179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a7d2d5a5e2253f8e6e56a1399905856fec398f331902629de1b7f11f51e514f. 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/GB5SH2300030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6221a5dd27107cf49a9c33829eaedaf16fad06d453a71611819b4e344f4caaa6. 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/US6PQ2100132.