Erik Frank (12 November 1899 – 5 January 1972) was a Finnish cyclist. He competed in two events at the 1924 Summer Olympics. References External links Category:1899 births Category:1972 deaths Ca
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 0xdda174b5e83008133b84b3fa5291f56460739ffa0da9dbb5fdefe2cd1bdf2b2a. 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/893b1cc0-e5a1-4fee-9179-1bb1c9c7866e.json and https://artists.proofprofile.net/proofs/artist/893b1cc0-e5a1-4fee-9179-1bb1c9c7866e.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 0xf5f1ac3533c297c9a019005dc27957d011585c089fbf6db0fde8e30841e8419d. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/FR10S2543275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57eb6b8b15527f0adf7f02802a91c8a94b02e6f49ef76cc29a174e29e6716384. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/DGA0S2429280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e0cf1dd8035cdca79e3a3f5b715d499fe1306e65307b17263088e6e00760507. 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/FRX452460508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51a67b6dfaf019f4f8939f697e33f1b0dc8c1e5605e41741e49f7882f726637a. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DGA0R2331589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebf385546064d91b30def01df20e54bdb2dc0aa2bdeaabd3aa88da989a1036ea. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/DGA0R2326696.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd760dafb7f428fda5e0b99d2e013fefefa4e302f8a0bbc9c53ef642516491772. 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/DGA0H2386960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4c0e0015339764068b468709f7142a2813dc0fdfa4d1eab2619561e27490fa1. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DGA082345826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21efde99f864c4cf70b1a73e1b30d8a916342edcdde1271dccb8b9652bfecacc. 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/DGA062332852.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81bb73488e6dd71c51963d45a2b5eb2378c18e7456944dd783793cdd790681bf. 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/FRX872364259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf261fe5191bab630213ac65155e0514310480602b371e8e917126badd31f5a9. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QZFZ22350284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf41c882be2b3a7b9884c2071e3ec0f7295b89ede3eb2be5c835084778a4bcea. Chain 2 (Bitcoin): anchored in block 957043 (2026-07-07T13:52:39Z), 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/QZMEM2216512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c857ec6c228b9c35243fa3aa3384926a7831c9456929feaec5c223e26977519. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZK6G2279826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6ea451ba56c3a4a577b767cbca2b5a3f38026a0b6bc51a4f74984c74beedb6d. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QZNWV2157596.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0618d5d479897f2ce01a36d6441ba00069ccd453e87834cb35db935a8b55b413. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QZES92147888.