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 0xddba7f10e9111a7a552e526c496662b76b0fbab5d152745320c8d1bddfb9e0db. 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/156df6f9-5200-4353-8d6e-5825bb734f9e.json and https://artists.proofprofile.net/proofs/artist/156df6f9-5200-4353-8d6e-5825bb734f9e.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 0xb09bcbc31239cbd14d2bff6e70dda4cf577e4aa3e83835c3614c62fcb28df804. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DEA349701894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15d15cd7ad0273f1914270bfea6e6c314e6892cd9d39b2d17ba5a429ca746656. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/ATB158500018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15d15cd7ad0273f1914270bfea6e6c314e6892cd9d39b2d17ba5a429ca746656. 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/ATB158500018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0590483fd38a05dcead02a8e05d009a49939e350b3589d4eed2d6e19f1fba80f. 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/DEA341200709.
FALCO Coming Home - The Tribute Donauinselfest 2017 (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b8b95df4629c23c140c30abe22aec99471a95c654b3774862b0de8730149154. 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/ATB151700229.
Les Nouveaux Riches (feat. Edita Malovcic) - Donauinsel 2017 Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2a3f6bde845b6f55f8e58f1db805427c2208dd5b9453a9dcaf34226bdc6d2e0. Chain 2 (Bitcoin): anchored in block 957020 (2026-07-07T09:18:01Z), 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/ATB151700231.
Junge Roemer (feat. Gianna Nannini & Julian le Play) - Donauinsel 2017 Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0caebfd55436fb5c6eb4eabc737d1650c3dd2ce11391b1b7565d063f5ce77c9. 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/ATB151700232.
Auf der Flucht (feat. Skero) - Donauinsel 2017 Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b5816ee236987839d2ab3e2d3c8ede2ca3e50c33b443225caf818ec1da642e2. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/ATB151700233.
Der Kommissar (feat. Fettes Brot) - Donauinsel 2017 Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2c91cec54126a9f749e1182d99698660920546eeb338f76403148c926c5bdb5. 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/ATB151700234.
Jeanny & Coming Home (feat. Johannes Krisch & Tarek Leitner) - Donauinsel 2017 Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97f65d33766639356ac9d8dd03f0f1a49ff0c1711981ef142d48b01d024da0c7. 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/ATB151700236.
Männer des Westens (feat. Yasmo & Blasorchester der Musikschule Deutsch-Wagram) - Donauinsel 2017 Live
Blasorchester der Musikschule Deutsch-Wagram
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4b0c1a6a84a359f8c3cf0f17b99d822f7ddb751389cabb515c05edeaa5161f6. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/ATB151700237.
The Sound of Musik (feat. Ana Milva Gomes, Drew Sarich & Blasorchester der Musikschule Deutsch-Wagram) - Donauinsel 2017 Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba0ec3193f4912fc2b23c50333c826a9bb806af041ca2388572f212792d7047d. 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/ATB151700238.
Vienna Calling (feat. Fettes Brot) - Donauinsel 2017 Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x854128de70434804cf997a25b6bc8bfdc4f49ac0a1f10ba4d055f4ba23da50bd. 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/ATB151700239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc47bc49c625546c9cf8e8f088732929b7df590464e9ff732f16c6fe58d3a4c9. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:44:55Z), 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/ATB151700235.
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 0xc5537ea4bfff0b25f5e169597fede8b6284cca7c93a8d43c2f78aab54f29b8aa. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/DEA341200714.