Anne Imhof (born 1978 in Giessen, Germany) is a German visual artist, choreographer, and performance artist who lives and works between Frankfurt, Paris and Los Angeles. She is best known for her endu
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 0xf20358a5e382f3cb3b6d7f7a04b5f2a6bb3c9be36ad2c5eb693222bbb7fd7d4d. 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/026b2a87-b3a5-4994-bb10-b2cf99fcc7eb.json and https://artists.proofprofile.net/proofs/artist/026b2a87-b3a5-4994-bb10-b2cf99fcc7eb.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 0x3b236a3d60e3e39d0f79aa7a73a2102e1ad67c8e072338f8fb76acbf9d645f47. 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/USYBL1901426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84af825a0db1fe7a7e2e9d035d06e7d3f1c6bf72ece831fdc60a569c5bdd8669. 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/USYBL1901427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x808b19cde20ce0801316b2a221c93940f253680d3948c950063e0340cd92db1c. 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/USYBL1901429.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6d65cc54c6afb44b07b8ee03ac9a473aa5bf97495d756648f3e67f8f0f92229. 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/USYBL1901432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e4f4047d08596cae789532d7d3c86f86fd7f40632021ee1542c966da90c1121. 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/USYBL1901436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82e7ab6abfe0eba9581dc3c019fecef25d4843183c7cc9b5b515e5431fa917b0. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/USYBL1901438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c139d0d67c0bf3eb4c1c10a823bff3585c0e573690aa7b384b46f89dcc1383d. 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/QMB622011601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d97be4aff7bf1bc9d52feca7d71bc5fbe8386da675d17c2e0195df51319f519. 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/QMB622011602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ba26dbb46bc205ac1f3624babbb6bd412a517c337ac6a5325c21eb9de093195. 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/QMB622011604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2af735505fbdf3c520a5edfe9a5f9be82081aab5990e1f354df13ae786a132b4. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), 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/QMB622011605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x947f255b7fe6587fcd98c9878821c23491119c25b0529b749faeefca4ab8b81c. Chain 2 (Bitcoin): anchored in block 957026 (2026-07-07T11:02:43Z), 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/QMB622011606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfc151fc12ddef6598cc2fd7e3c80996a604e3de6de0ce580eec3f2e610beb91. 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/QMB622011613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fd98cfab012dd5cfbc98e88b329c8beaad4d8df0fb9038da7f16ce4860eb620. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T14:03:35Z), 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/QMB622011603.
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 0x405516471c1b27601fdb65949d3f5d4eab2aafd59f0579f6a4f6288b6e2cbb7d. 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/QMB622011607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1a89f443673c576f91e60d4e3e21d162da742c12238e38f4dfcf9e9a409e9b7. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/QMB622011608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe57c60f5cc9aa36efbbe7c06592204602f12fe65569bf58ede57094750b572ca. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/QMB622011609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cfffbc6777422a5861e2cff9f01226ef7554c49b3995f2f581eb2dd46e6f857. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/QMB622011610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1edc9837e552410bb18814c9641e86ddc536ddcc892ea7ccd8a5545cb857a464. Chain 2 (Bitcoin): anchored in block 960164 (2026-07-29T23:23:05Z), 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/QMB622011611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0caa48cf6d88a979f997a2830b37f4b3503bd83090959a83780a6aa363eaa43f. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/QMB622011612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfc096bf9d9d41379638fdd8f463fa852e60b4c930235b3b725ce4edecf900b7. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DEQ022292175.