Carl August Peter Cornelius (24 December 1824 – 26 October 1874) was a German composer, writer about music, poet and translator. Early life and education He was born in Mainz to Carl Joseph Gerhard (
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 0x9672e86017ee2c7f3b6fb84ab81be741362eca572a08e051ffe036217a5a0761. 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/5b81f4ac-b07f-42be-a35b-13bcb195769f.json and https://artists.proofprofile.net/proofs/artist/5b81f4ac-b07f-42be-a35b-13bcb195769f.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 0x48bf842f91bb9da0e39c2c1cea50affaecca9bb3131133324d5cbc00fd75ed07. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/DEF077902460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d9feea788af591137fcb366a748bf96fdb28a666c1a37f3e586cdb9ccb637b7. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/DEF077902470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa37afe0aec28965358d6261712d82b060c99f1ba8dfad15e7059b146f2a3d74a. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T05:15:23Z), 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/DEF077902550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42de49c6b938062507977813b7cfbb3dbbc717d8fdc0e076e591b6cfb6edd0a3. 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/DEF078002590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43cbc167f1d6a579b18e64e0f4adfecd3b1ece0fa9174650ce8f04b8f8705ffe. Chain 2 (Bitcoin): anchored in block 958514 (2026-07-18T06:54:37Z), 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/DEF078102490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2e90af320d41b4613b8c8d03a6eda88dcea7ca23d462f8c9fde052d7d1c49cc. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T14:09:34Z), 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/DEF078100010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc59902b9a29b990c7b38982aa4bb031a11f628b0220d4178c89055031051e8da. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/DEF078102550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabdf5adee8a0965b92a5e0e06a233bda7abd4b701a7d0c190b2253c018eef65b. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/DEF078102580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b91904c53e039ab2878c44deb5e9795a60ba10d057320d3a12384b2c539b081. 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/ATC831500025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e9d92fd42da88e58c6e72f6e96ce3da10d252968d17b8aeec0d4eb6db229af1. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/ATC831500012.
Cornelius: Die Könige (The 3 Kings) & Other Choral Works
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc76477bb43981d22bd4b5b1b75b7786305ced32d1ea8ea308cc8863313116f3. Chain 2 (Bitcoin): anchored in block 957771 (2026-07-12T23:27:28Z), 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/ATC831500006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19fe7e904fd7b70d0a7d1d717aee99fb79bfb53fd4bfb092e99a309ffd1d1571. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T13:59:31Z), 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/ATC831500007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d8cb50d125ba99bb322221db9b492d6346720f43e3ac846b101f3a2b86360ed. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/ATC831500008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ef0100e45d1eb34cbdf2990f5e9e71041a8547b4eacb927f2eda5177a90aac8. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/ATC831500009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bc5ab72d850ea3546ffcba6cd52f9a5ab3a8ee4b0c9fe47d129d8e8074b7b1f. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/ATC831500010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x883f563d7223af264baa9763b00a1046b7844f089f47a1d91394da1320f35c1e. 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/ATC831500011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e9d92fd42da88e58c6e72f6e96ce3da10d252968d17b8aeec0d4eb6db229af1. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/ATC831500012.
Kann sein ... (Rock 'n' Roll ich schuld' dir Dank)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c8e0244a78a992aec0a89bc60653fd1c26863304d68b1b8f1722de99c6ee59a. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T18:41:28Z), 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/ATC831500013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c64bd7f689e657d9d30a4441bf26243ffd3b473fd377abe21834502c08cf62f. 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/ATC831500014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6910264109ba7b5b3b41b4788005fbaa9225e672ce44449f61376c90faa92a0a. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/ATC831500016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x796ef51dacd61959a5acc0b5a2cbe9616246f9f19d5c52d694c72527c97aaaa7. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/ATC831500018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4a02cc7dd4b48f0ed2fd41e854b90b0412b0d0e3ea342bff4afab4cc0d576c7. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/ATC831500023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7225e562ce25f133d521c8f495d6e1d48ae9f88c66a4c50f25602456b0588268. Chain 2 (Bitcoin): anchored in block 958510 (2026-07-18T06:38:22Z), 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/ATC831500024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b91904c53e039ab2878c44deb5e9795a60ba10d057320d3a12384b2c539b081. Chain 2 (Bitcoin): anchored in block 958568 (2026-07-18T15:23:47Z), 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/ATC831500025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xded9d51ecb79cccfd47cfd7a9c8655a513596589857adc5c29badd2cbb910f1a. Chain 2 (Bitcoin): anchored in block 958788 (2026-07-19T22:07:06Z), 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/ATC831500026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f913eeb2eb42de745a88f01e0f53a58294dfd1ae95accf26e6f051cd2f99d71. Chain 2 (Bitcoin): anchored in block 958095 (2026-07-15T04:30:08Z), 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/ATC831500030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1197f58788df126fed9cad3c148f51ee4ce6b596dbc04ddd13e20a5a3c0c7e88. 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/ATC831500033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa691ed5bd918bfa8e2e64f1c006f71172c70d427c4ce44bf260c6b3a8dcb774d. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/ATC831500022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b34da8cdec926e2d7304a96a484d4c49faa3a8f13d41861f77e436a00ca7826. 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/ATC831900004.
Sechs Lieder Op. 1: III. Vöglein fliegt dem Nestchen zu
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ad76a1124ec7b454becd2da50c2e536512e2860bc03dff08914bccf4a4a29b2. 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/UKSAZ2500081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42de49c6b938062507977813b7cfbb3dbbc717d8fdc0e076e591b6cfb6edd0a3. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/DEF078002590.