Finden is a surname. Notable people with the surname include: Edward Francis Finden (1791–1857), British engraver William Finden (1787–1852), British engraver
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 0xd59f624c0996efee5ff7db502e5cde5825cef4ec7f58695c6ee4c480223066a7. 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/e54bfd50-2345-4672-804c-cc9f6a829339.json and https://artists.proofprofile.net/proofs/artist/e54bfd50-2345-4672-804c-cc9f6a829339.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 0xad3b0fd7f2b470918e31c6e0dd062b19f3d8ffef43c97f182c566d5db0e1e1ce. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/QZEKE2017273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe83d8c2e3c0ff7236c52e41a2b3bdace1093cdd42ddc562dce3e534b9c7f42c4. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T11:38:41Z), 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/QZEKE2017274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17c799a15778d19b95cc4395313cca17c9a082d204d36b7a7aaef2cba1fa88d7. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/QZEKE2017276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb443a327b2320d5afce23a6bb6dfe9463005e0fdb14821c03bc2fe2ab42ff92b. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/QZEKE2017277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66d0ca6ef7ad048bec47a75b64fc51cce0dcbf59f829445a1a0b8cb52a564a1f. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/QZEKE2017278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4dc93bfb85603a06bc91d827dde229ce51c238899a5b4f235ec22ccf8b534e6. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/QZEKE2017279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1893bef998718f625cfc92591695a812600bcc5dd9c5d0abb188e6230deeb3f. Chain 2 (Bitcoin): anchored in block 957756 (2026-07-12T21:36:27Z), 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/QZEKE2017280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65640594facbb0f7743ab05f4e5e002391bbfaeaa1a493d751ca0cdd5a0ea672. Chain 2 (Bitcoin): anchored in block 958142 (2026-07-15T12:45:20Z), 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/QZEKE2017281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa998b4252ea09f765dc4a9541086bde2925ca7b5b651bd0ddd202c1ee97763ce. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/QZEKE2017282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25692afb56682a9535bdf0f6014173075e6894e56088a11f9194ef1b843a8dda. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZEKE2017283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3a90dc854baf6de1d2fe973986b58716f0a2d8cfa64bb91929730eb6162a40d. 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/QZEKE2017284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91b0f855d3f1a0bacab57f8d948cba29bb27170051d58d2c343a2e360e044df1. Chain 2 (Bitcoin): anchored in block 958351 (2026-07-17T02:38:05Z), 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/QZEKE2017285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x296280915619309a563bccda32b9614a531e53ffbc23b42e09944fc9c7d16b96. Chain 2 (Bitcoin): anchored in block 958407 (2026-07-17T12:08:48Z), 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/QZEKE2017286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87343e4e46c576a89e5a82915935f61716f9b88dcb4c250134b321d3f250957f. 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/QZEKE2017287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x470d11293081837b4a883a7631f03876448fb5655ab1a21d094b544ca77b6918. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QZEKE2017288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x209bc3b901306c8483f0551aaca2c75af58ccb8d9acf88b017d5ea0e31b05be2. 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/QZEKE2017289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc40215d1da9bfbe05d4a71b232621cf3430755fd6a6eddaaf5bf03c1ca33e6b9. Chain 2 (Bitcoin): anchored in block 958474 (2026-07-18T00:59:09Z), 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/QZEKE2017290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe68c53c717aadad7ed818643c439e304695c946533116fa46510d2466dcd0400. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/QZEKE2017291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec304e2ee67f2e06eb0a666404c972eada2dc8bbf909a06436755efe648ab20b. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QZEKE2017292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4fb928d602c7df5a7b9d0e7b8cd69a0070f8d02722c5fe7b5134eefcdae8d0e. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QZEKE2017293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd74596e0aff966b582473d67771e561d538865973d90a51956324d4c4b0e18fd. 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/QZEKE2017294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0143cc6cb94e1aa022ea985013a38c275f02a85f96f71a54d84294d451a5d6da. 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/QZEKE2017295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b035e1c7c3da7851e02e3970b952d99e05f3ea6f8243fd113464952f95b1086. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZEKE2017296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1738b31ecb54fc9c551e3687d4809dea58110453cca5af5f292055d062109d20. Chain 2 (Bitcoin): anchored in block 958504 (2026-07-18T05:41:32Z), 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/QZEKE2017297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa46d42f547c61d1a1425daf5b3d630bf03f2c80ac84507a5285c7a7a92fae29c. 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/QZEKE2017298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f0f738f2ae6a7c510aea617411e5634f11005868fde1b48b9f3748d4804b94f. 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/QZEKE2017299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0092285c957bbf7063bdd45ceccc0cf519d9b4b360a8b7a00b5565a84e88b72. 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/QZEKE2017300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f492575f0ca3273ea7929bf7e036242fb3740dfeb5833aa35029110d00681cf. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/QZEKE2017301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a6809ab1a9d93fba59071f4faa6fb9eb26fc5fac639438fdf7341582079c4b5. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/QZEKE2017302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f3347bc59f9f7a3919e9805f7149385801e2f833de566143edf4ba7c9d4ca55. 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/QZEKE2017303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9626fd661313475f5252f80aef8d88a7f155797e7ecea949cf4e731591fa8fe. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T02:28:59Z), 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/QZEKE2017304.