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 0x752daf0abaf917a07ff8a15493d8a2074c129be2f909584363d81caf189e4c53. 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/9602fec0-3400-4d4d-814a-a7924cd55873.json and https://artists.proofprofile.net/proofs/artist/9602fec0-3400-4d4d-814a-a7924cd55873.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 0x2826bb4f73f811dbddd72d2f62df0b2e6cb8a47c893ced2a3cd0ff286f8eac38. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/DEZ521500617.
Ballermann 2015 - Die XXL Mallorca Schlager Hits Fan Party Deluxe (Vom Closing über das Oktoberfest bis zum Opening 2016 - Darauf feiert Yaya mit Helene und Kolo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2826bb4f73f811dbddd72d2f62df0b2e6cb8a47c893ced2a3cd0ff286f8eac38. 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/DEZ521500617.
DJ Apres Ski präsentiert - die heißesten Schlager und Discofox Hits auf der Piste 2015 bis 2016!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0da81c96006678e370c9e0219d35e2801e2f60bd108363adcd951b5b24b6a750. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/DEZ521501188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc51564fbff60f5985f0b7f40425d95f8a1b89f1402857b8e689b95f00048be35. 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/DEZ521501185.
Öktöberfest - Die besten Wiesn Oktoberfest Hits für deine Schlager Party 2015 bis 2016 (feat. Willi Herren, Matty Valentino, DJ Mox, Krümel, Satzy (Man of the Alps), Der Bürgermeister, Sandy
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e0bbd30d4ae13147ad7a24e6df0c0793555c089dfe4406819cf8cbb45576bac. 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/DEZ521500705.
Zillertaler Hochzeitsmarsch - Oktoberfest Mix 2015
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa55b867348b5cb652486c0be5bcd96287c3f72dfa7d767762d70738dd15b5ba. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/DEZ521500712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2826bb4f73f811dbddd72d2f62df0b2e6cb8a47c893ced2a3cd0ff286f8eac38. 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/DEZ521500617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b750f11583ac9ba0df8a754345d56ddf96b407b38f74194ef3e277658639b2f. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/DEZ521501180.
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
Zillertaler Hochzeitsmarsch - Apres Ski Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x448bf74ce4e827fc188b2c795256f1326af960ce7d1fea0ee3e8f99a84e164c3. Chain 2 (Bitcoin): anchored in block 960199 (2026-07-30T02:30:29Z), 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/DEZ521501192.