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 0xabc74d938b806c198da6e58944d6d600c8e477f36410199c73da3b8ea92ee878. Chain 2 (Bitcoin): anchored in block 953730 (2026-06-15T02:47:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/94afd8b2-28e6-4139-9539-c8b1a391292a.json and https://artists.proofprofile.net/proofs/artist/94afd8b2-28e6-4139-9539-c8b1a391292a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
E gheimnisvolli Schifflischaukle, Scene 1
KAUT, E.: Meischter Eder und sin Pumuckl (De), No. 3
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 0x5a3c7bdb982962623119af71374d7a3671cc88f20581974363254edf15c32178. 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/CH0042201192.
E gheimnisvolli Schifflischaukle, Scene 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x317eaa1bc5fc5b824d4874e3c9954df1fca44c07281494cfe167d801c3b24a92. 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/CH0042201193.
E gheimnisvolli Schifflischaukle, Scene 3
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd3bff3fbf7b3a590b24c6ac6f03dc53a9b382b452549873dc1456e7fb6e9b2d. 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/CH0042201194.
E gheimnisvolli Schifflischaukle, Scene 4
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e3284070bb86c8a6675cf982b1439409d5854a87dd3ea9c9435fae9e3abe8f5. 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/CH0042201195.
E gheimnisvolli Schifflischaukle, Scene 5
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3e91ead23bed6cc550883874867205d9424939cae7e6b0d45226a519cbbf0b0. 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/CH0042201196.
E gheimnisvolli Schifflischaukle, Scene 6
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x013e366e121368ad8a2ef999bda8b1668fefd47e79e9a70dbcf1015b055cd1fc. 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/CH0042201197.