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 0x92c90685aae0f45a691e7bcfda588dbac589488ede07396c4a06a7e440c74458. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c3cac0c8-764d-4c5c-b99f-8e95a61ba544.json and https://artists.proofprofile.net/proofs/artist/c3cac0c8-764d-4c5c-b99f-8e95a61ba544.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 0xadb96bae1b494db5b586259c5316165554aa1b806399fa9e49e4bbe2aa3915fb. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/DEC719400517.
Berlin, Berlin, wir fahren nach Berlin - 2009
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20047989c723f57961bbb0ed800cbd28928c4302421a18bf311458db17ab3a73. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/DEHZ20900337.
Das Beste zum Jubiläum - 30 Jahre Olaf Berger
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa806ec53a066dd6f3c2cc08de599ff02e6092173a5e3b3e11be0b540dbd47598. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/DEC719800241.
Was wäre wenn wir Single wär'n (Duett mit Antonia aus Tirol)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9ebcf3cd4141b58c853495e6cb52fc8888aeaae33aa3bdf02b3802cbd902386. 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/DEQS91700874.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5f8116bbee50e5b4873b497e5be15efd583d337e1babcd48c56a6445a281784. Chain 2 (Bitcoin): anchored in block 958800 (2026-07-20T03:07:34Z), 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/DEQS91700876.
Verlass mich wenn ich schlaf - Dance Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe13f6575891e51b851370a7be2d4f74eef3824c39aac8c92ac5c6dd2c910e2de. Chain 2 (Bitcoin): anchored in block 957522 (2026-07-11T04:46:56Z), 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/DEQ092300028.
Schenk mir noch eine letzte Nacht (Pottblagen.Music Extended Remix)
Schenk mir noch eine letzte Nacht (Pottblagen.Music Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2aaaf150452f10af1c974dd604069089c61c0c8b97164d9f3cfef731244fb85a. 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/DESM32000616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96a3c47231a3e8116018d31d027efa1b8ecef96ea45fccd1253e2998259a9169. Chain 2 (Bitcoin): anchored in block 958054 (2026-07-14T19:33:24Z), 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/DEYX82112656.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6841572b8988aaf6b54161ddd183a0b56c0b41525ab86dc724376f5412bdc02a. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/DE1G72200010.
Ich kann dir nicht schon wieder widersteh'n
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f21304f2c7fc423f9933a968b6d336d75bb064af5b5a39c30962eb632e735a3. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/DE1G72200012.
Wunden gibt es immer wieder (finalmusic DJ Mix)
Leg dich hin wir müssen reden - finalmusic DJ Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18f709ae673325e59ebf2a90c61f550f734bafb7fde48dc8ba50428f0745f861. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-17T00:12:42Z), 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/DE1G72200024.
Leg dich hin wir müssen reden - Party Mix Radio Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6a24420648dfe11d10464d9e117977138c3853364435ea32bc8d1df20e00ea1. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/DE1G72200031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2715a90a7b05328a9a818bc8c1af2cdb676bbef4afda566ded558384a33b039. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/DE1G72200007.
Warum hast du nicht nein gesagt - Coverversion
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76432ddbb047aa687c55445b31d48abb195653e7758f62f1a8f449ab5d11d542. 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/DEQS91600997.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadb96bae1b494db5b586259c5316165554aa1b806399fa9e49e4bbe2aa3915fb. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DEC719400517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadb96bae1b494db5b586259c5316165554aa1b806399fa9e49e4bbe2aa3915fb. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/DEC719400517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa70ecf1eb714907a5e5612801a95f2bfb5dd517e455a2ceaac3587d398e285e7. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DEQ092300018.