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 0x184fe0a6bde4a98b0f5e198acf1bb61c027dcbaf6584a93815e353d6d2e36c04. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c9ba1b5e-3c43-4de5-9e35-ef81176a5cc6.json and https://artists.proofprofile.net/proofs/artist/c9ba1b5e-3c43-4de5-9e35-ef81176a5cc6.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 0x5470487d3cbca121ceca3ed9c476b053353814bc778c00d28668416fa0aa6bb4. 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/DEHT41304659.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20cbfa130eb5949850817e0aac6c400afb97f47ee8d1ee7124803c6d12927496. Chain 2 (Bitcoin): anchored in block 957620 (2026-07-11T22:32:56Z), 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/FR10S1720476.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea9876cfb40619bf7df5af017ecc91d235922eb6596c6c29f55049e74b86eb33. Chain 2 (Bitcoin): anchored in block 957611 (2026-07-11T21:33:50Z), 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/FR10S1720478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x065adad7174bad6ea8b300793ccf4005629652d28ca45352732a1989e34167a9. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T21:20:45Z), 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/FR10S1720488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6056818b4860c969b0ba0a6935e117ac7e9f585df735602a9142d686abca42c8. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/FR10S1720496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa00f5b4f65f6705d83dd44e4f570930a319507f86c09f46754e1ed9a73ffa769. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/FR10S1720497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24ffa12266e203293b0179301fabd516ab6d77c7e535cf02d6ac7c190866de1a. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/FR10S1720512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6295c37a76f790c76e9958a01524d53a93bff70122c7c67af81c364d7a16375f. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/FR10S1720540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a5b6db7005c2f4fb1d96f3f9fb4165d9cc5ac6399331c048eb732f8ff328f0e. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T20:03:27Z), 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/FR10S1720541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93443c746c68ceb66f729045e075e022a2ce5d187f37cae362beeffd3e638b93. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/DEHT41305002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb42df5c38c054733aba9124657ab87a3aba4ca0ece9ac409a3391328029e90a4. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/FRX201609154.
Ballermann XXL – Die Fasching Hits 2015 (Fasching 2015 - Die Faschings Hits 2015 für die XXL Schlager Karneval Narhalla Party bis 2016)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04ccf72f23d4557d1403bc79270d4dea7280b29ef34a057ff046b77822924a7c. Chain 2 (Bitcoin): anchored in block 960296 (2026-07-30T19:11:09Z), 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/DEZ521500083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04ccf72f23d4557d1403bc79270d4dea7280b29ef34a057ff046b77822924a7c. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/DEZ521500083.
Ballermann Stars - Die Apres Ski Party Hits 2012 - Die Karneval und Apres-Ski Schlager bis 2013
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa26bf04e09f148eac027e460e54b0986c36250e5a1df66c778960c1e7c50e795. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/DET371100084.