Leck may refer to: Places Conwal and Leck, Ireland Leck, Lancashire, England Leck, Nordfriesland, Germany Leck, Virginia, U.S. Other uses Leck (rapper), French rapper of Moroccan origin Bart
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 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 0xc7b4a28f4b8d3b4bd784e7caa840ba3558fe3d4b6eab50e5af9ebc09b427dc58. 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/c42cd33e-b3ee-46d9-b45c-a933feef2e22.json and https://artists.proofprofile.net/proofs/artist/c42cd33e-b3ee-46d9-b45c-a933feef2e22.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 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 0x220add61f4a99f2fd22128e0e4548194b8f365a80ac8a80e3e4c08e8bcc1577d. 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/FR9W11119285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42cc008b39a837e795ac6ce76862aecf725f9c99b91215ef459bd4357e4cacfd. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/FR6V80165861.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bb716ca846796b156949537f237fdde8a7f53fa849a8ac0d06f4c4aeab47b3b. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/FR6V81339229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1eea20e1c465ffb718f0a3fd0108a308a197d1d97f5c02400f8ccdec56cf41e2. 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/FRX871576313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88087ddb0d467c2de2a7b0f0905da6379aede7a024c490b43e34b02aa4dc3ac2. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/FR2X41788600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x795f95082a00e673a21a59d7f37e45754f6e87e512b5f435ef84fde53a6dcccd. 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/FR59R1965545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38a56f27bc44c5cbcd42229f6a28ee18b8493bfd63fa4fdb88b10dfdbcf228fe. Chain 2 (Bitcoin): anchored in block 960111 (2026-07-29T13:21:01Z), 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/FR9W12323447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a370012c76798ba04e84208a9fb15ee0dd28068a1774f758cebdd544b848f09. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/FR2X41900920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76b4bff0aaf33691cbbb37b9b49935c5e8ce8e4d35459c2c0c6edcc48cd7c646. 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/FRZ421600001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bd7e06d1717055a9f623a0d7fd1ce5070381b156605afa06cd151da549b643d. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/FRUM71600563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x060af059a4b431eba93fdb64107319ca8a981fed2c71a04b278957d285983629. 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/FRUM71600566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f7fa1cd3e053d6769ec9f58b5bd429ed35a0dd33652a429aec9183e9edc796f. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/FRUM71600577.
Arabian Bad Girl (feat. Hamidu & L.E.C.K)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbce9993bf0dc33c880008745a3be08dd2724cfa53911f1f13e7ba558caf05b7. 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/FR6Q11400043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xded42473c561df78b4756f129b2863a58fee7c07ebbe824cae2fffc35f11d505. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/FRX202205395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x889002219d80fde94111ccf4aa9854e41acc258de30cc47adef44d1d46775c22. Chain 2 (Bitcoin): anchored in block 960111 (2026-07-29T13:21:01Z), 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/FRX202205408.