Ellen Fraatz, known professionally as Ellen Allien, is a Berlin-based German electronic musician, music producer, and the founder of BPitch Control music label. Her album Stadtkind was dedicated to th
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 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 0x182ca2bc6fbe1b0fae6f82927819d062cbc869b396d9b361722f5323e2c928dd. 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/169599b1-d0db-4ede-8c95-4b2d90aeb27b.json and https://artists.proofprofile.net/proofs/artist/169599b1-d0db-4ede-8c95-4b2d90aeb27b.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 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 0xe793a4dca04877e519c91bbc7e119a40015bf5d268b760bcc770dfd3d7616c88. Chain 2 (Bitcoin): anchored in block 957774 (2026-07-12T23:51:20Z), 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/GBMA22581890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51a29f7882864775c2f7faf2ec5c9ad4df3f82383efca898ccca100c8545554d. Chain 2 (Bitcoin): anchored in block 957778 (2026-07-13T00:08:48Z), 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/GBMA22581891.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35a20682ac40997a17e554e252b963e8979a702fac7e62eb550c059c5aaa5582. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/GBMA22581892.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67aa4a4325333339378512d37fb72123c2f035568e5045555707bc5e93e19848. 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/GBMA22581893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cbb1bbbdd5c103656eb5e013793370624fc16853b2ba6dfef3df81032db7125. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/GBMA22581894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7df6de2d68f5c9b8f0259d2dec4dc0fc5682154cb2f99010c033af805911c7a. 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/GBMA22581895.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53f5ed524995333fb46a7e00dcaf603f93f00531adf8f6d3a2b6e4abd2f723f7. 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/GBMA22581896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d16cccb079c45210584de124a7111da7412a63d9e59c5aff6ca26a589aed59e. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/GBMA22581897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c4674c1e48eca5ea6cfc79cc51c9ea10d04d28253aed75bb7720fa7245f5162. 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/GBMA22581898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84561c2e8d7736e61317434090bd397da1a97f7723629df8aa168bcc8287c54c. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/GBMA22581899.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd306df53319065c09240f2195cf5e7ed043865990e8289cf5218afd89105d296. 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/GBMA22581900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ecf3a2c944de0f55f6468cf98461ccccde333ac3ca81bc8f02fd4f923b27e64. 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/GBMA22581901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3eed8bb7795318b6a4b4919b677bacefe233181a33992de0d987406d06e96f15. 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/GBMA22581902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9adac3cce4f861b85be8b88fcac685d6ff2247ef7aaaa4e20ebae5083d644f0. 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/GBMA22581903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8932abd93423234bc56f231bd35b070e7c8229b296a132b73b76cf172c12c9d. 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/GBMA22581904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bb1e66abecaf317ca2dd3614449260e7043ccc6fd0fd1958e379652568defeb. 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/GBMA22581905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52523b2404e5372d2700f5e59595afa1c78683a258049ee25827e99860385aee. 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/GBMA22581906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf505ed6637135c1243cae1c940526d45e9c7138d6551273f4975c7448be6babc. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T05:50:22Z), 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/GBMA22581907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a5ae28220167f2b07be51408a81e6d3fb370acdcb4fa8dca95cd5f40db3fc86. 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/GBMA22581908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x930efdf700adb62622b987a09ae38fb4c2cba4683a2e48421cd4564772c5cac8. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/GBMA22581909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x240e8d24a106947b87eb5add8fb6c85552c89efbd85da78158cea6a01ef2ae7f. Chain 2 (Bitcoin): anchored in block 958800 (2026-07-20T00:52:19Z), 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/GBMA22581910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc8d03ec6c03c54d08986057b7cd6816a181daceefce73a85b2429922b3cd1c6. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/GBMA22581911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9723fcae069d52f129afa7b37ceea8b5962e7b3e13d906681ebdb61b8830ffbc. 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/GBMA22581912.