Egan may refer to: People Egan (surname) Egan (given name) Places in the United States Egan, Illinois, an unincorporated community Egan, Louisiana, an unincorporated community and census-designa
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 0xa89bd9d17878874f4ea82f37d36044978786253e0c55fab746440ef1107fdda9. 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/23f79d4e-63e3-4b70-9b13-d1e718bf0603.json and https://artists.proofprofile.net/proofs/artist/23f79d4e-63e3-4b70-9b13-d1e718bf0603.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 0x80e4863d0007bd8383b33049a34c2178810766e85c4ba209dab1ec9b7a6b4abf. 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/GBSMU2459552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd25a51587e3af768f9da295abc077fd25413a2f4e893b58f4791318cea7d380d. 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/GBSMU2459554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f754084e22e82d46455355e7d1a5669a52a265bc32494339b325b032e8cad50. 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/GBSMU2459556.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90a1a51907c7d451e64869696500a85258b8ee7ff201c1e69a17757ad179c11c. 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/GBSMU2459559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0661b7e5dc277db71c9de81c6693083a21a7e1f800f11832367dfd452c134692. 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/GBSMU2459561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b86db53d03d3a1f6a2012a28b7c93ee3b04e99c32325c8c3b422f292b5f1574. 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/ES5591900236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b0d7581f031bbe789447e6945faff44159319ab7ad9e82e58751524dcea893f. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/ES5591900240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa8a948441c2b7aaf3960c1fce81a1480dc8eb5e41acba97e134b96cc46fbfdc. 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/ES5591900215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x970363d4a7aa60c9497109a8d567a6d38d4d9553203ea1063f6ae55666758236. 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/ES5591700021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e2418f759983c18778bf7eb5c5cf975d7f5d7359e5d9f40d4184a72bbc7c921. 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/ES5591900201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ed4d47bb241a7aa133182f17eb05ebfa1ce4ccf91885c862b6da0dced7ff990. 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/ES5591900204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3be26f5403d270e02a660bd677b5cae68e8415beaf7d0e2b0415e2592023175a. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/ES5591900206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2590ea86f0f9ac82551fcedfd890ad7c1c5a640fd24256e60bd02f51d8c937dc. 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/ES5591900208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37a1661b0707d139a36dc09323411ece3962d823b4d3e4b5491d98a07bbbdbd5. 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/ES5591900210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9545554dccb8724a664747edd86b59d76e4e2f0d57e07c4285f2c4fc5761c8a3. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T15:10:02Z), 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/ES5591900212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xade08a5bf7313d3f2adee3218c8543f90798d55d6e3f9fe8f2b0b023bb1d7756. 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/GBSMU1793364.
Hilda Bronstein Sings Yiddish Songs Old and New