Anna Depenbusch (; born 17 October 1977) is a German singer and musician. Career Prior to her solo career, she was a background singer for a group called ,Die Möglichkeit einer Insel, Spiegel.de I
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 0x663f83ca631de89e28c6dd27949e1eeda8063416e5b7f0597a7a9d354d994adc. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d9827fcb-595b-4bb3-b871-81d5bbee8932.json and https://artists.proofprofile.net/proofs/artist/d9827fcb-595b-4bb3-b871-81d5bbee8932.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 0x3b0481152a44513ccfc19de14a105d04b6ee1fa31a280e789abfb3423a4e5481. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/DEW471000018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2aa37acdae471e58d7d2b7e727589f93c859f4f24f97ac4867da3ed744a2b90e. Chain 2 (Bitcoin): anchored in block 958880 (2026-07-20T15:17:10Z), 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/DEW471000019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e2d34cd515e596b8a3b141fbac3ba0cc99daef2f5631f32387bb0860445cf8c. Chain 2 (Bitcoin): anchored in block 959051 (2026-07-21T22:36:24Z), 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/DEW471000020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c91df42066a84ee3c43b135a16dee4ea7d4e5998f873761c00acad52542e170. Chain 2 (Bitcoin): anchored in block 957874 (2026-07-13T15:43:57Z), 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/DEW471000025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb3296cdbe6b7ddaea6f047afa1b1a078934b9d3087ef32ae579bf371c4b146f. 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/DEW471000026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x742215fcc9b9ff2625410fb288e71e38832cb7d4a8c4347f58e789345353654c. 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/DEW471000027.
Die Mathematik der Anna Depenbusch in schwarz/weiß
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb2635d0dc25a4d228270f7aa9fdc16d19396f16a788dd5463bc24d89f63516b. 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/DEW471100071.
Mann für mich (She's Always A Woman) - Solo am Klavier
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5da733f6685357db61a0c2b6091a069dc8243512cb412267320556fb1097e2f. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/DEW471100073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf24e971d14091e06e1a80cd571061b52b48462ddc67e1b04b35ebe6910843728. 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/DEW471100078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef03f6ff7eb3be984b4999cea2cf5c2ff65c564cc4b101ede99b9e2e6c1eb436. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T15:48:46Z), 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/DEW471100086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b63016fad05d315ac286cb6fd273a5e0efab32ac806ea0df71b5f970e228858. 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/DEW471200017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x273411fa70535deebd929bb795bb5b8e11a2d7b38f47207dcf818058df8d15e1. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-16T01:21:56Z), 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/DEW471200018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfb899e6f4497c88c8a16c4ada0a616407f387195cc3df9fed18fa2bcb1485a4. 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/DEW471200021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d4fae1c1224cdedd50b21bc29dc96a7f2619c29bd45488ff5ca40051f970647. 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/DEW471200024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8966a824e265c0cb6aa024ff030500eb5143b4c77f8624b32309c31909a2db2. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/DEW471200023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25fa9bf3a6addfb2775b0fd3aad178d3b54f01c3f6ddc02311b074198286650f. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/DEW471200026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25b0939378f3de2749c605a52354188df949371c24cea346ac0de39d59ec4af6. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/DEW471200092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c4a98aed0275a284f2c09d95fe4f62fc046aed589b7a1edcfbe7745de09d66b. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/DEE861601298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc7d34132b321aa205f263c3b52b7ccc112846e9df168d011e57dab80ca6ce32. 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/DEE861601293.
Das Alphabet der Anna Depenbusch in Schwarz-Weiß. Solo am Klavier
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12cd28b2061338dd7cdd5942b29664f1e4339d19e7d782373e56a19592c27f61. 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/DEE861704197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9237906aec8155bb8a25af20e9d891e4c7d284a48fb78868aeb507351183961. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/DEE861704199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12b3421644d950e397bd1e72a7b58b399d75fd064c494084ec11b447483124f1. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T13:02:36Z), 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/DEE861704200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab8e2ab07d6ff8875e1acb7832d2d25f50d0bd8e2d5fd5fe3e43316c9f2051d7. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T21:20:18Z), 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/DEE861704201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c72f394f83bce240f877cd02faafe413ee03a7fbb179f9b9df41c2ead7e7e01. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/DEE861704202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9c9b12be32d454ac5593288ab565766c84390e4bf4d26222a21e0cb189adeed. Chain 2 (Bitcoin): anchored in block 958798 (2026-07-20T02:03:20Z), 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/DEE861704203.
Echtzeit-Demos - Wo die Geschichten herkommen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76ddd6c58334e2b717d3950a41fe5219bdd97d97e3672a57a203f83e6ad05412. 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/DEYL72400001.
An de Eck steiht'n Jung mit'n Tüddelband
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe04360022718fb85e8fb6e170fef389f330029a278fae149cd7588f5f3380f1b. 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/DEQR41400193.
An de Eck steiht'n Jung mit'n Tüddelband - Sing mit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6cd0d851464b92b34ed7c3d91449f7e42d8f0007d14cc943308429396d01575. 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/DEQR41400210.