thumb| Cari Lekebusch (born 1972) is a Swedish electronic music producer and DJ based in Stockholm. His productions range from techno to hip hop. Career In the early 1990s, Lekebusch became a memb
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 0xdc4f45ea8851e6776e4a8faa4f3e66baebcfa292e973b7b836550ed110167fe8. 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/5d5445d6-3517-4eb5-b7c1-f9be13006d05.json and https://artists.proofprofile.net/proofs/artist/5d5445d6-3517-4eb5-b7c1-f9be13006d05.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 0x841e7a0193353452dee39497c0da02c037caa1bb875c876a010516191281df49. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T02:46:47Z), 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/DEAZ30717963.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bdc37e0382a7b347fda9a660a49c62ac8b0944d011f85f9e09719276f57fb38. 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/GBYNV1100135.
Fly (Summer (Brendon Collins) & Swyft Remix)
Fly - Summer (Brendon Collins) & Swyft Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8a6f9a4d24818e2cf7d0e73c0dc50841b176c5d91776ba58c7828bbff106acb. 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/GBLV61627411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3594644853d59827169ca1a18e0c37b9ff29be0548fcad886d1514d4ad560916. 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/SE3JM1800103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31532b905f54b8d80c44b9070d57d7840c20e4aaaf037ba4398f6deb32313695. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/SE3JM1900136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ca7189543cc2e8595fd8297cffdcb9ab7662891e4faffe10bb1a2e205f5894e. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T14:09:34Z), 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/FIKBL2100005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4e1485b9291bf4de53e873d44a37f636cf55261af56d37d0e10b04166633c78. 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/FIKBL2100033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa096c49f7089aa100334caccd768a82534be7400cdce94b8b3b9311947085ec2. 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/QM4TW2510398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x022eebb61f989b193d34fd83485deeb66e861425916bf0036dd725b8af483d34. Chain 2 (Bitcoin): anchored in block 959034 (2026-07-21T16:34:25Z), 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/QM4TW2510400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x302636fd8495d401cbd8c2dae2eaf8227a38e82700cbff641121e05fadad8ba8. Chain 2 (Bitcoin): anchored in block 956482 (2026-07-03T10:33:57Z), 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/QM4TW2590165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80cdb9404a79e946c51eff9edbdf1f313fbdb75f93d3347905facde68ebe7750. Chain 2 (Bitcoin): anchored in block 958726 (2026-07-19T11:47:20Z), 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/QM4TW2590167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1cd84f837eb37d68488f61449cb201a977c91eaa7864c9958e5444319dc9776. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T17:54:25Z), 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/QM4TW2590168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cef9328a812564166aed9a4cc67e7515ac499cf12d0839e499afcc8c6bd055e. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/FIKBL2500056.
Global Underground: Afterhours 10 (Mixed)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e4371abeb3bd929b5c9182fd31cb6aaca82830aa576885f9cc1796d74888a27. 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/GBHFW2400142.