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 0xc07340b11f9e211c4ce1005506a878d5fb1e9a27deb4604d14b17ffded8c6247. Chain 2 (Bitcoin): anchored in block 953827 (2026-06-15T19:59:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/dfb16daf-831f-440c-ac9d-cb1946a78cb8.json and https://artists.proofprofile.net/proofs/artist/dfb16daf-831f-440c-ac9d-cb1946a78cb8.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 0xf18f3b8ce29bbe6100ca079315cb2c27d823bbc7ca2cd027527ef1a09d063e7f. 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/CH6540818050.
Ostberliner Bauarbeiter (Ostblock Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25de870e71cbf733b7d2fd16412fa5164e3f1cc6a287013f8617944134ab03d1. 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/CH6540818051.
Gefahrstoffe (Album Version) [feat. Sara Noxx]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd11c376cc5e035f0c400307ef4ed8258dcf1b7248e9a3dc94bf397826d7b16f7. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/CH6540818028.
Gefahrstoffe (Hocinoizefluggerät Club Mix) [feat. Sara Noxx]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26a3a06a156948a67eeba1bbcfd8fc3d23611ab30c61421fb616d8cc9fb25a67. 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/CH6540818029.
Gefahrstoffe (8ight Remix) [feat. Sara Noxx]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa45d99273dc3ab7aecd4184ba127afdd6d5ecfd4c4a31b4e4a9b4c229071dcaf. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/CH6540818031.
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
Gefahrstoffe (Sound Tesselated Remix) [feat. Sara Noxx]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5dd575a9ec58540b6a3016eba49701a428689fac467a874129b616410fa50e6. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/CH6540818032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc22a1b2196daf7ef12981c59e809d35a890097de760bba1cf3e7cfc3203554d7. 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/DEP890713355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a17229d2b5e8bd03030977df9432cf80f663b74b93a9a8375e30720e2fa3b0b. 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/DEP890713356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1edd155533534de0bcc6f0489bef77d24b52d744453af9b24863bc5944ebc828. 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/DEP890713360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1163e5ac89783668af0813d193f2ed53cf31ab8d682da84b2cc12c6d8668317. Chain 2 (Bitcoin): anchored in block 959132 (2026-07-22T13:20:46Z), 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/DEP890713357.
Demokratischer Sektor - Blutfuss Club Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa95964780cb612781e857e14d996d2fb960be1d52c6557aa7b8ce24faad1f5e8. Chain 2 (Bitcoin): anchored in block 960225 (2026-07-30T08:04:30Z), 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/DEP890713359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78c4eabb7accb98b95efa3c710041aa7d06671edeccab2bec61628e13d157b21. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/DEP890713363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90169c615fadb6e4206ff214d23125f5e487103df0b2fe4caf69c0be670b0c8a. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/DEP890713364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4a47233aec7c7a59fe8cb074a1d42f1be817cca9c757b3601b749675d2f5772. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/DEP890713365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x601c5953295c6fe4e201325c9a9401dfaa7b7d78c90b06b3486cb996ed4c99b4. Chain 2 (Bitcoin): anchored in block 960463 (2026-07-31T20:42:35Z), 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/DEP890713369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a4920ade8544adf893f2c3a2f6d686f2469c39d427e0100c0c9147e344e4b2a. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/DEP890713370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13b053652aff0718977bb28f91330fa1c75562df24ea1aeef063920c203cd4bf. 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/DEP890713371.
Feind hört mit! (E. Mielkes Club Abhör Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e7df3f7dc3bd894ee92c466dc251054b4afe847ab59ac5ab01192f0e82db980. 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/CH6540821944.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3f089a45ba8e158fefefaa7f0b775ff05622935085fb90ff2fb15c07cf00c86. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/CH6540821945.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c4c9167536ccc259c1dde185e8181a3a6a5e1bb2df359b6a79f0bf0eb26e640. Chain 2 (Bitcoin): anchored in block 960311 (2026-07-30T20:45:02Z), 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/CH6540821947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x560cbcf6d158b10187175b41e225e51704efcf2358cceed2f73f9d9bddc8364d. Chain 2 (Bitcoin): anchored in block 957041 (2026-07-07T13:25:45Z), 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/CH6540825609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e84b74d2bfde72227689091eb825eb15eab8a22f0602cf233db647a248606e0. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/CH6540825605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37992c80b054b17d05639142a9642eae7a3ad31e8bf14c696cfe2ea8166ed3f3. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/CH6540825606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf87c3182ee8b70c6d13f0d22085bc4b28842a090534cf49d8b9c6ea6c984a76. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/CH6540825607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b4944cb549261dc5ae1feb79c2124afd176c69f0b40111627636813168dc42f. 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/CH6540825610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45b10ba3e3e46ec7787e461b1c99f202104b435c3e6f4dfac97ba48ef74300f4. Chain 2 (Bitcoin): anchored in block 960311 (2026-07-30T20:45:02Z), 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/CH6540825612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb8c00c9d42b4197a4fa4c472ce96de4c53f8e28894311aafe89906014b0eb27. 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/CH6540825615.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ecd76b2db42daa0d24044ea519a4f76b8c1827936d38b2bfcc43a4765119929. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/CH6541603969.
Dbtinb! (Der Brigadier trinkt immer noch Bier!)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1590b5f4f319cee4c0de52c82611ed76e8fa09be6b760ff3028f7469a2bbdff. 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/CH6541943932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x258a053bd87cb7cf2cb9c8ae57fe433be1f8b0cf4079e65cdb70582bf47767ca. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/CH6542543625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35b7aed9235a7fe81788bd54755f776f91be1002a34cea52eecfd4eecea7258c. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-22T01:07:26Z), 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/SEYFX1500102.