Fix or FIX may refer to: People with the name Fix (surname) Arts, entertainment, and media Films Fix (film), a feature film by Tao Ruspoli Music Fix (album), 2015 album by Chris Lane "Fix" (Blac
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 0x15bd9f10ef194a766598a418a3cbf662531f3c86ccceb390d01106565d2da61d. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6b2d87a9-d17a-4817-80e5-ab084a2a9c60.json and https://artists.proofprofile.net/proofs/artist/6b2d87a9-d17a-4817-80e5-ab084a2a9c60.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 0xff2891cc44c9d17aa18611c72c8c5698a4337be10ca6372356defffb05eaf826. 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/QZHNA2386919.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc20f0b37bc73bb3d4549626e17d927bd8ba4ca703014b0df9451223a47955f52. 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/QZNWV2344266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9c938e3fab914237dba9f390ac80dfed13bf5f71850fcaf4c05f135c0d1ad61. 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/QZPLR2365919.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b3fe366881cc1606e5d678c3afc15f4a5a1d24f2ab508b015acc3185da81d52. 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/QZPLR2365920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x411192a75fc7ecd6008cb1ccf3813dedc47a1888b18775af88bdcf5dc5509b4d. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/QZPLR2365921.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x083b80f0d44470a5b451c796d299ec639917e5e24c85470054c4b6db961de956. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/QZPLR2365922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77266e1df86a38c20bcaf38fcfd4bc074ad2342f99792587279b77cea8817a08. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/QZPLR2365923.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbc5f89fbf657388a2dd29d5589db6b68ae9bb5a26884eaf92e95f7c3a3d4d1e. 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/QZPLR2365924.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34ebb3e8bdf6caf43b326cad60be0a7dcec240c60aca1ac5ade6f9241d400f2f. Chain 2 (Bitcoin): anchored in block 960506 (2026-08-01T03:50:58Z), 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/QZPLR2365925.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9efb24f54c92c160239e233f1e2314c62dc8362b69c0d36c94bc35b7fd071cbd. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/QZPLR2365928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d0c6825b331ef37b41e4b2865ec3563c51042922bb1e4bff2ec373d48987072. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/QZPLR2365932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xced42c32a3782c5a80c5fa2bc4bcd239408b232836e2d00be2d48a661c4f2569. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/QZES92380510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xced42c32a3782c5a80c5fa2bc4bcd239408b232836e2d00be2d48a661c4f2569. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/QZES92380510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x635037c11c415fe070038709e64481921f54cf988b881d5a904696def187a2a0. 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/QZES92380513.