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 0x5ef45049201a5f8eb8bccf074a6029f179226d556269ddb4dd1cfe10eebea12f. Chain 2 (Bitcoin): anchored in block 954346 (2026-06-19T03:51:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/97b821b0-4c35-4d31-9c68-e109bb70aafd.json and https://artists.proofprofile.net/proofs/artist/97b821b0-4c35-4d31-9c68-e109bb70aafd.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 0xb7b84fc41635bb4894d7babeb039f142500f0e45962b31aeb5e6d3c222768547. 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/USZXT2455106.
Grinkenschmidter Vereinslied (Dance Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x983934bc7d8d4a6ab599c7d34b7a9b64b2d2488df02a78a47b417c55270c9418. 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/USZXT2454191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02f71fbc080466fb64e72191449ac9c73d0967ac622787810a9872aec81c7426. 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/USZXT2353288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xded4eec046be43c14379065cc67534a42aaf77c4704fa508e6518138d031bf7d. 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/DEYX82163101.
Heut' fahren wir zur Sommerrodelbahn (Party Version)
Heut' fahren wir zur Sommerrodelbahn - Party Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb39cf53e057ed6bcbd1e36481e422b2ee11b52075c051548f71e1669a09247eb. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-16T23:20:42Z), 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/DEYX82126990.