Rachel Aisyah Diack (born 2003), known professionally as Ledbyher, is an English rapper, songwriter and record producer. Cited by The Guardian as a member of the United Kingdom's underground rap scene
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 0x1bfeb779bb818b3585f95c38e06b3f89dfb1f753975fa55a02bcd4b9fd31fdbf. 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/6c1961b7-e927-4aa0-bb55-3df68d04ddff.json and https://artists.proofprofile.net/proofs/artist/6c1961b7-e927-4aa0-bb55-3df68d04ddff.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 0xf1dad27d1daaa0532d86eca21057ff1ed6a650c8db9ba5771901346c91e94972. 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/QZHN92145789.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03342bd91f60a0ec45e0990b9a3eaef91cf5646ef0be843f3075c52daaf8f2c2. 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/QZMEM2126941.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63bf22a4393b6663cc5c2137178c1b0a55060f2f4f6b2999189979f257cd146d. 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/QZTAS2146715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x317bdc0331983a1e9d910826c06c9006959a18d2d31b81e7fd6ba11abe163968. 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/QZHN32223555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc0d04d04f0321fd86ac9d3bae1423643cc92d176f6b224cda8e35676c6e146d. 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/QM6P42324264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf67c5797d58fd900e808bb5c915c3b14fa5ebabcec27fc27d109a46e412a2a70. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T17:37:30Z), 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/QM6P42324359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa353c132f300e0b5e908cb6d25e7d956ce25dc29f1f371d917454998d2ffc54. Chain 2 (Bitcoin): anchored in block 957751 (2026-07-12T20:41:42Z), 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/QM6P42324382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02eef04d414074fc275ff3093b3e2e7910d2fe3a65dd468ea9a79f062c2de4fd. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QM6P42324386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb670fd3de4029e5db74969295967e4f6e4c0b9a181ff049e9775c80c0156d6e7. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QM6P42324391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4162caa4c15f3486643bacfc4bde4c2d3a324d61484cadfef0ac021d6068f290. 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/QM6P42324393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89941f7eda0b95de068ab76435251854625d586d247522fbc2d349ea349a6702. Chain 2 (Bitcoin): anchored in block 958793 (2026-07-20T01:29:55Z), 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/QMFME2355205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x136575756207d64815158dd314ab5fddea6437bd7f3b14637cb2b84272120ce4. Chain 2 (Bitcoin): anchored in block 957852 (2026-07-13T11:25:45Z), 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/QZHN72474952.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02f5b145cabab79a68730ff122d5d0d8c2c437364b4ea1e3f52b4900f16defd1. 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/QZMEP2413934.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c7d94a1c9f6cbdee4f1a0cf7fa348e8ca39b1fcb160d0dd384644056d10fff0. 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/QZTAU2461719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4aac9b3999b2caf77b98d98c7334dbbb0c48725b7708f80f3637473ac4766113. 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/QZTAU2461720.