Schwarzer Engel is a German gothic metal project of musician/singer Dave Jason, formed in 2007. They have released eight full-length albums as of October 2024. Their seventh studio album, Sieben, is t
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 0x7b53218d7ceab3639434e8bfaf9fdf3ace655840e88933ef3c348c02abe9934c. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1e3db352-cfeb-44a8-98be-f7592f0b624d.json and https://artists.proofprofile.net/proofs/artist/1e3db352-cfeb-44a8-98be-f7592f0b624d.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 0xf17ca2e4e194a471c8efcb1bf89f46f840ed1a617cfaa93205818a1e1f6f2e14. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/DEZ901000361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x856fa6c2e6240a379b289a4c87fac8aa81a98be4c010bae98e7f9cd3c5b0d9bc. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/DEZ901100120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfd864141f14f0077439c2fdee4a8b5817fccb7325ad74fe8f4a661adf158703. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/DEZ901100122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecfdea93cd964e2d3bf11048a11014583b223b53e1f1fbc21d8f8dc4432a9756. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/DEZ901100123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81653f31ba3db107f8aba0e6be5fd59279e4df6ac02e4fe328a15c58f9e41bbd. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/DEZ901100126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34d7306a7c8372e6ff44dd3f38c0e7b7ab8327185774b4a1148269df038f9eb5. Chain 2 (Bitcoin): anchored in block 958639 (2026-07-19T01:18:30Z), 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/DEZ901100130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x741101f936daa335d9e5dfb731eb1ad26a4e585d778c24e94e3f1891c76792f1. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/DER371383505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf9c05317f87fc5fee8443e03cee4bf5cabad49b6c77b70fd5fea92eb5e5642b. Chain 2 (Bitcoin): anchored in block 958662 (2026-07-19T04:43:15Z), 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/DER371383507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x840c13e8cd4bbf432af7abe0e74ae0932ffcb4c5a9a615a11d1fca6a5c630322. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T09:49:20Z), 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/DER371589007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d1202e45871d54317511d39dfdb5fcdb5c541492bb36be9231b6e4538de1ce5. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/DER371589010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b5a204034beb4c2c514d60ebcb5d0670f1208d2923c24f65d91b2802b184fb4. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T18:02:03Z), 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/DEZ901600399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0322993ba0e5fb02c6f2f659a7074c60f5d9904c63a4111d5412fbcf7fd6866d. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/DEZ901600401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x973742ddd21d76c60b3108b65095784e643ce4dbe98102b0582f50928ae4919e. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/DEZ901600405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4208b9734ee5f33eeafb7422adecd9d1a46efcd7602e969ca72ae2e6ea1d643d. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/DER371801202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51b3748cf07e3bd4afd291c028d9484db4b209143e84a2d6de31372902b88189. Chain 2 (Bitcoin): anchored in block 957573 (2026-07-11T13:43:13Z), 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/DER371801203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4e327efcd2bb2af29d46f845dd86beb280cc5b02ab609f8ea98bebb883d5e12. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/DER371801206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7abaf140a6d8d903d72b6b15a37a268a06c290a592520ee8814af7901ef18b0e. Chain 2 (Bitcoin): anchored in block 958384 (2026-07-17T10:46:45Z), 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/DER371801208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f3ee70163f8d21fe261a184bbef0679e15e191556a34b781f1d110d728317e3. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/DER371801209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08725c612213e03b3760709dd4491de40b3ab3d6d1ca0a75873d81d25f45d81f. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/DER371801211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc08e04fcc89e3a6edafcd28e8960865bccde1244f39c2e53d6a873db84057786. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/DER372112806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb957556c4687e027722eeb07ad3c13b3e44816f297309117e6745ba2df2ed9fa. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/DER372112809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3449080156da9136f0ab2b727d41103b8b0268d77fb24394d686d8ec0586c62e. Chain 2 (Bitcoin): anchored in block 958775 (2026-07-19T20:13:58Z), 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/DEZC62405164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa482ceed87dd5ee36c4dbe19390a2e245b33f4d5dd05a4849d7606c1254079d. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:56:30Z), 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/DEZC62415961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf2c1473cd483f0c5f41842de4723fc9eeec346809f7fe9c9864a27f7cdceddf. 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/DEZC62405162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x891f1d4df8e7661f88a914b1043dc6f7ed50371e3cbfa0e47c0e2fce1e25f8f4. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:35:15Z), 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/DEZC62415957.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2df0724a722d7d6f6b7255c2ae2301dbeba58db51c5dee50003d71b69dcf111. Chain 2 (Bitcoin): anchored in block 957919 (2026-07-13T23:58:45Z), 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/DEZC62415958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x590afec094db2a624bd61141c5861f7f69fb5c48eecca7bf0f4de1eddb5fe2e7. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/DEZC62415959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d78e7b7eab88f8ce1c6a7e1184873f55054caba9a47f3b3e389839ce00492ac. 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/DEZC62415960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa482ceed87dd5ee36c4dbe19390a2e245b33f4d5dd05a4849d7606c1254079d. 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/DEZC62415961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x527e440e14b6b3d81926bdb56d09ddaf333711482e1f31bb394debdd4e123d00. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/DEZC62415962.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf59d30305608084652b4de1da6c0c8af33e7202a7ea4357d03c1a0db08e65354. Chain 2 (Bitcoin): anchored in block 958678 (2026-07-19T05:59:57Z), 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/DEZC62405163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87259c86e7ca6bd27ba30962041c2d55730a9d8f7e369b98d275b8c8e0e2e559. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/DEZC62415963.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdcc701ee7390b57dd8c102dd4c007f62cd4087501a8dc04b28c4637b926dcc8. 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/DEZC62415964.