Falk may refer to: Falk (name), including origin and list of people with this name Falk Archaeological District, historic town and lumber mill site Falk Township, Minnesota "Falk" (short story),
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 0xd46d6119814e0a90631b9d4bbe041811482a46d7d4e0b6f206ddaf3b85b2d79a. 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/6043dac6-0543-4e43-b155-5d0a85280892.json and https://artists.proofprofile.net/proofs/artist/6043dac6-0543-4e43-b155-5d0a85280892.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 0xa013f78ddef533ecb02ff24c9959ca05f94e2543033265a8ff9762e51f63e8e3. Chain 2 (Bitcoin): anchored in block 959065 (2026-07-21T22:00:50Z), 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/DEUL11500375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90133ace713ac3c3b871c0f94b34696e299a3d6f8ee03c764e939a6f7bc0708c. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-02T22:05:07Z), 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/DEUL11500391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x086f37bdeee0e9acc239d21b8808e5f7045022f4180a5c40a9ddc37cabd7b8c8. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/DEUL11500399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2877ec0bf0badc175587e717beb5a6b1e4ac0d7b559afae9227b4f73eae50f8. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/DEUL11500404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf72bb54be21de58f5ddfc2cffa792de4d1b5cdcd7d34e03aae605f8d6281e699. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/DEUL11500410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x017138475643c26db1db65e257824378624c16285d421447235af8624dcabfcf. 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/DEUL11500602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfca3518624d05331ef4ad1683540bf760a9a09a72263ee9ca9c601123cbd9a84. 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/DEUL11500603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d33d24b9bc095bd9b48d08b0a1a1c5908a0aecb548b67d4773432111714ae27. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/DEUL11900768.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2a2cda9fc9a995ef2b92dad4a34e8c6a4351f3c190bd490d73fcd1ddab64bfc. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/DEUL11900772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x753e03abbff7081880eeefe4b5f17cc963cbe459d13e165ddfa73c708ee764df. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/DEUL11900773.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb56c9f73c0b9e58bdaa408cff676b2f81d030df9e6aef45d018ed2f90184f0d4. 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/DEUL11900778.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bf84c75aa20215ae796828bb29e7298ef63dc33574c1def969e7a471d04aa15. Chain 2 (Bitcoin): anchored in block 958878 (2026-07-20T12:32:15Z), 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/DEUL11900781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf51f0ccae23f4567f21df2a5b3cf9a6ca3e94a62d0f6c5d2e75d7e66d1eda2df. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/DEZC62207118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39b80270978974d49154cc2e35021389721fd2eccb7b079b53a72c8e721c973f. 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/DEZC62207119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x934470cf351adeab4700ff0152be6aea3538ffce4f2df74391ec515a502cecde. Chain 2 (Bitcoin): anchored in block 958395 (2026-07-17T10:10:33Z), 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/DEZC62207120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69dbfd69acfc6b04f5d0c61df310e8f0e8160cd4a8e945a16a923f0f20b2ab61. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/DEZC62207121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbe5f39e63af2887e1d6cf00b8320d83ebf8876560a0e600d612a18b1c25f94d. 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/DEZC62207123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x922940411ee6a08392ea0755bcd5d88b2ebf0cdad6e92f8c0ddf9027f1c958d3. 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/DEZC62207126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x287766241e98c119fe0dc070d30a5e40c642018aa52cadebe800376618ec2e23. 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/DEZC62207129.