Hardy may refer to: People Hardy (surname) Hardy (given name) Hardy (singer), American singer-songwriter Mary Ann Lyth, British missionary, translator, and teacher Places Antarctica Mount Hard
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 0xdcf588b0ce458beeafbe5f61d91091ca2adcaee4ab4aa9aa73426b4e143f9ec0. Chain 2 (Bitcoin): anchored in block 953713 (2026-06-15T00:33:41Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7f508e0a-f102-4917-89cd-33514efe2f3e.json and https://artists.proofprofile.net/proofs/artist/7f508e0a-f102-4917-89cd-33514efe2f3e.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 0x8cf4cce549e53ec961ae10d2415dd9d1664775a3c64998faaad8335727eeefa8. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/DEUM81905158.
Party At Home Tape (Helden wie wir, Im Osten geboren, Wilde Zeit, Zeit die nie vergeht, 1000 Hände)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7752b96f50bd53e89d3e6b4920190bf2d95117876e566f469827ef4c3bcae7a5. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T10:05:23Z), 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/DEUM82005283.
Das, was bleibt (Wilde Zeit - Special AMIGA 75)
Helden wie wir (Die DRHV 06 Handballhymne 2023)
Ich glaub im Kühlschrank brennt noch Licht
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cf4cce549e53ec961ae10d2415dd9d1664775a3c64998faaad8335727eeefa8. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/DEUM81905158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa44cc796586facdd8ad1dafd4da13f01425e8d687407c9ecc6555465c77ed313. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T19:26:13Z), 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/DEUM82506083.