Darko is a common Slavic given name, and an Akan family name. People: Darko (given name) Darko (surname) Places: Velké Dářko, a pond in the Czech Republic Movies: Donnie Darko, a 2001 film by R
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 0x35afe24ff4b72e039e65d794e9601f6134383a1b0d7c869756d4cf3235619b59. Chain 2 (Bitcoin): anchored in block 953588 (2026-06-14T04:52:46Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/01d24e2d-fb93-4814-b4f5-e274a629f4f8.json and https://artists.proofprofile.net/proofs/artist/01d24e2d-fb93-4814-b4f5-e274a629f4f8.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 0xde8313722226ae78adf17b96a16941facce120ad2d6bc1b6eaf01ab8191a7389. 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/GBMUE1100193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33841abaa5ad823542dee9453c5690e8d2f4c177bd8777af69b98353cb01b823. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/GBMUE1600026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2309084edb0721be71f060e614e57144cc64386e6656a401ef5ed7c24cf37778. 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/GBMUE1600027.
I Knew I Should Of Taken That Left Turn at Alburquerque
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94f7ffb273a550f6cd9d7cd73f04b5e746ab8cd4e606729fee176ed44e194c5d. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/GBMUE1600030.
Live At Signal House Studios (Live Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20aefc4c5bb23e4c926ea8441d30ac9754e1154bfa158dcc97aaf62969665215. 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/GBMUE2300102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98e089ca6d6f826bcc7ba372cc1caa9e57fd5a19f011a323440881d52383d9bd. Chain 2 (Bitcoin): anchored in block 957782 (2026-07-13T00:52:48Z), 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/GBMUE2500003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc061e9d0861fb086a21a9860fdcb340c424c237753277bcafcd089e47e3b0fa8. Chain 2 (Bitcoin): anchored in block 958873 (2026-07-20T11:48:10Z), 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/GBMUE2500004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc061e9d0861fb086a21a9860fdcb340c424c237753277bcafcd089e47e3b0fa8. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T16:14:34Z), 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/GBMUE2500004.