upright=1.2|thumb|The &c (, "Protector of England, Scotland and Ireland and another") shows that Oliver Cromwell did not renounce the English claims on France Et cetera (, ), abbreviated to etc. or et
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 0xdfd9eb90cdcbc8f503202c11a22b2356c4def040c5a9f217c14f0d4149f69f1d. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7f3f8f3a-dd8a-45ee-bb17-ebd738445187.json and https://artists.proofprofile.net/proofs/artist/7f3f8f3a-dd8a-45ee-bb17-ebd738445187.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Mach's noch einmal mit mir (Do It With Me)
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 0x9ddd566245935fe669eb41eaac5d465184907c137233daa6215923c22db71700. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/DEH969700116.
Mehr als (D)eine Frau (Long Cool Woman In A Black Dress)
Long Cool Woman (In A Black Dress) - The Remixes
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3f77c5d047262fb4281c89f5f818aaf730dcf68f62ab3daf1ca55c660ab8ce6. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/DEH960000097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee2cd8a834427caa085bc26d0a63a3bf7f1da97e218a3130af31c59daa2f7965. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/DEH960000102.
Jecke Tön / aus alt mach' neu / Kölschgold - Düsselplatin
Ich bin stark nur mit dir (Youre My Heart, Youre My Soul)
Killing Me Softly - Etwas in Mir Wurde Traurig