Zeck is a surname. Notable people with the surname include: Arnold Zeck, a fictional character in the Nero Wolfe crime novels by Rex Stout (1862–1940), German politician Emil Hermann Zeck (1891–19
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 0x5dd83e56df8cc5d6a0f65bc034946db5196a9fc73a5bb925fbbc5ec3daac7797. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c536b854-6942-4649-a6af-a20bd605befc.json and https://artists.proofprofile.net/proofs/artist/c536b854-6942-4649-a6af-a20bd605befc.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 0xa60f4d40f1591931d28ff6fb7dcdabe22bcfb8de64e540b1e7e1f8a644dd9dce. 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/FRX872491100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90af88186fab5ebb21e15a56ddbd31abebecda66a5251d9e2eeb1bafe857833b. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/DGA072303911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4296f329db408075a33b47baea97044c217333758c2cc5026382f5e63a0ee22. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DGA092335558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce1846ff89273692c2ed9a8163512e3a2b8dc20708a270a7d0a864172ea7dfcd. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/FRX872491101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaacdc3ce28633cf646a27ca325ea1bcb313caba10be14182401479a7ba84a54f. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/FRX872491102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf36e638079de2fbd540aba3746eeaedf0799e1cbba281b0ced33ef9846e4def8. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/FR10S2402593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa77398d787fdd335fdc2fdf758bab28354ce9fad6bff3bc8debfc3e89a89cdda. 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/FRX872491103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09589251763ec36c04ec7e7eda5420030afe351459a0ced8e8c7aa64e6abfd3d. 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/FR59R2490912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5aab763f16498bb28a85dd865a27a7314963903232a5947b59485885c26309d1. 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/FRX872491104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61a71b563d0da81cb5ad764b6d32006ee7726724f9fa0e79cd4dc9335d5d3393. 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/FRX282424626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74d7d9f5a053ecf3c548a73e7ede8baec6ebe13bcfc6df7d60fbad73873f01c2. 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/DGA072376750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8991a635ab5c3c5bb31ce8e4f8c767af2f7302636f4dc612ec7ecd0b6b16407. 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/FRX762421460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c73a311d917aaab29cb4af99eeb38b5b5943642d8a9a38f4f4ae96ffae5f313. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/FRX872491105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ecd057203ec6350a8769982c065566ec853d49a24074c8681fc3bb86afa4a69. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-17T00:24:39Z), 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/FRX872491106.