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 0xed7fc48dd6d439a59ae46ffedd63a38112cffbada7a2c40da0ef70efb30fda42. Chain 2 (Bitcoin): anchored in block 953657 (2026-06-14T16:43:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4adfb482-7143-42d9-b5db-a6c20ab98c58.json and https://artists.proofprofile.net/proofs/artist/4adfb482-7143-42d9-b5db-a6c20ab98c58.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Verlieben, verloren, vergessen, verzeihn
DJ Schlager präsentiert - Die Kult Hits der Schlager und Discofox Szene!
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 0x0298f7f8ccae6f2c1b9ecb7210c550dcb8e042f7684c4f17f44aa88e615bf396. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/DET371168121.
DJ Schlager präsentiert - Die Kult Hits der Schlager und Discofox Szene von 2015 bis 2016
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b4a9195e7a1964d74c5f0cfc348c90892d208e76143dc9ca8ad5546d5762feb. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T05:46:48Z), 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/FRX201622782.
Traditional German Schlager Music Playlist
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e9c1abf41b252628d434b0974b71eb96d97ca0a1333fb9796b5e09f83a996f5. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/FRX201609155.
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 0xc5d753a1535800ea463bc0e1e6935c667294742719b530425177939d751dcde7. 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/DEZ521500036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdef8a1524fe012663f634e765b2839abe890318a424d0d00ad6ae484a3a5c899. 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/DEZ521500038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5d753a1535800ea463bc0e1e6935c667294742719b530425177939d751dcde7. 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/DEZ521500036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdef8a1524fe012663f634e765b2839abe890318a424d0d00ad6ae484a3a5c899. 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/DEZ521500038.
Apres Ski Hits 2018 Party - Die XXL Schlager Discofox Fete (Feiern in der Karneval und Fasching Fox Hütte bis 2019)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd59d82b530eccf48f946fbbb8449c3b81acda2625d194d3f470acc08f7154547. Chain 2 (Bitcoin): anchored in block 960376 (2026-07-31T09:09:19Z), 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/DEZ521200142.
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