2018 Illinois Music Education Conference (IMEC): Honors Chorus & All-State Chorus [Live]
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 0x2acb01ba0f277b32c5fd5c7cda1be9ef41a3f5fbe09f954ea0c92f8af2518cd2. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/USX9P2019372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ede9e369c63a7dd729c1f76020557da4638291206335a21f44bd7e0c67cf533. 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/USX9P2019379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02d362b8279c4cd057d3c57aab3fc3f9bef3bcd1b91c30ea076ebc94ec3482cf. 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/USX9P2019380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x216412369a326e79d8855c5a1f156beebb18a27dbed212ec1100d07d641599e0. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/CH6541788932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e52572c8402eaecaa63bccbedfa1853b518b07ac4971b80fc04a2abfa883253. 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/CH6541788924.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6775c87cd31fa5bbc763758ac8f048569df749f4ad5d26a723fd37cf8392fe21. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/CH6541788923.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bbfe873368233d59817096249b236831ce74b9c426673dd91a2932d213d45f6. 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/CH6541788920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x738b589a2000cb69a7e22c861114e6ab47bc46a1ec010926b09b1a8f609f9137. Chain 2 (Bitcoin): anchored in block 957065 (2026-07-07T16:43:21Z), 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/CH6541788919.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2607ccb61f75179a8c5c120b3b76bf77a83bda9a6ad857e03fd791b008a68396. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/CH6541788918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x856b527a729496bafe1b17759d23855acc70d247d631bf51a675db33806745af. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/USX9P2029905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e64a2d3c50b6594e4717d34fef12b39de0846d5be14ae70ee13d05d425693a5. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/USX9P2029906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeacc1ca8503c4ce4816f5a596ab5a114f0eb678b055d22909136f706f99b4a41. Chain 2 (Bitcoin): anchored in block 960407 (2026-07-31T13:26:30Z), 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/USX9P2029918.
Concordia University Wisconsin Kammerchor
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaff681d5fe17348f1c559d8f5add9209b9ea1b6c53cfa3ac0c50b2d1f268b5fb. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/USHM92008419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa44f1bf6aba981f26fb1670a56c7809dd07d3cd6051fc451560387815c3fc3b0. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/USHM92008423.
Zespół Wokalny „Luna Plena” – Przesłuchania konkursowe 2021
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf47c6cdf7d3e77166365368f364928554dc34d5dfe833fe3f858adc3ece09a1c. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QZDA62213808.
2012 New York State School Music Association (NYSSMA): All-State Vocal Jazz Ensemble & All-State Instrumental Jazz Ensemble