Heider may refer to: Heider (surname) Heider FC, German football club Heider SV, German football club Heider Sati See also Heider Umland, Ämter in Schleswig-Holstein, Germany Heider Sati
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 0xe17751970dd669c575339b9d63ed6ada6b41c180be5b96f7ca2e4eefb9c4267c. 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/65a4c823-e7f5-4f46-a544-d8097e0b256b.json and https://artists.proofprofile.net/proofs/artist/65a4c823-e7f5-4f46-a544-d8097e0b256b.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 0xe03272a1dfcb0e5f0879c6db6f5c84e0a863bf0ab1b6d2379867ff0de98bf270. 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/QM6N22376544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8e736fdb22bb81527977024b6770172cbba6ac8ab863d527ff1c2c37b9e6e1d. 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/CA5KR2322552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b4b6dce58afee965e21188264fb4f959b359ae8f04f9717de5f49595773efdc. 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/US83Z2224193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ac91ce2f853981c5e3efc25ebcb351b8d6d9ea8b8d211dd1f17fb217cf1a78e. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/CAHRE2200036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc358714c02ceed3f548044c9b0df1eaee3f787412481ae674e1edc8dc19281ba. 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/CA5KR2214942.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cf882fcf1f09ca4f42cb3e5a20edf095f514574e6afd65deedb9f57c79b5761. 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/FRS182133164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaac4a171c998649184f78bbbdfedc8e634789f4d69b7af942052bc8efdaacae2. 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/CAHRE2100089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e3db3e36432530597736d6d99742f73a2bef69513666edc5a78ee4ca29bc0e7. 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/CA5KR2195820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc19c623f69cb5c2a43f32c3dd16f2c3c32c7125ed20a1bb0daad33091710be76. 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/GBSCL2156085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf96cd4750ce277292ab6c9c2abe8c5b3476bf206ed87ef010161736d7f04589. 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/CA5KR2183808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50147b96083acff09ca95da4d84ded618910d2365d848028f2456b1a2af98125. 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/GBKQU2165130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf693f533edbe64cfd5c1a54b57fb6fc2d37356d8a7684f23b8d6048877a52088. 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/GBSCL2156020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddae1bc614ada79d2962a2df540ce507be3f19ccbe3814da9b9f15adbb3779f7. 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/CAHRE2100002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9eac3b713ad663b553e9b58b06ec4d1c0b2607437f328ed706762182eac9c974. 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/GBRKQ2003921.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f06b8c4eff724cce941401ebd1da7a39d858d3558a0f5804bc38bf9ed7f246e. 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/GBWUR1900003.