BAF or Baf may refer to: Biology Barrier-to-autointegration factor, a family of proteins BRG1, or hbrm-associated factors, a family of proteins; see SWI/SNF re BAF complex Military Bagram Airfiel
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 0xe5c800c9796550ddf4ffdf6606038bbd27a98616caad28d2847c1d292eabfddc. 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/2cf5c88d-1c59-4e43-b6e9-e427c7b013cb.json and https://artists.proofprofile.net/proofs/artist/2cf5c88d-1c59-4e43-b6e9-e427c7b013cb.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 0xfd98d4fa4410e3f37eb844b43a03b6688827dd36536e54b2681b5796893aa33d. 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/DELK52219003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c2a9a743f89edc06a4d50747fb6eb23e8896f5374903205777fe4d348280fcd. Chain 2 (Bitcoin): anchored in block 958860 (2026-07-20T09:58:28Z), 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/NL2QC2100507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafeef92ae083ab845c912706344d28456b181ef43d70eed7d19bfc2844bd4890. 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/QZTPX2218243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53718eca077bd06ac15a9746c8bec5a25ae5c4408ef171e37febfc934fbdbd89. 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/NL2QC2100890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68f1ed02ebe84cb18fc9330364458765fa4f111c21668faf1ff4142cd29a2e9e. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/IT2VK2300038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6ede26d1ac4421b7295c849420684f5ff16f9ceaa84ddb17f9aecb66123bb10. 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/DEH742323658.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3865a5051821943e5856f41e2eea2674745d62047604b1cf7f058b168d2d48f1. 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/NLT2H2301000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x580f8852ecda12132d42a0c5ff2d85f30029a7cc66efe6d14ecc405981f5e52b. 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/DEH742330639.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f22ba459c7274d257e2d8eb68408d28724af19aba64b6d1955fd2877ec56249. Chain 2 (Bitcoin): anchored in block 958903 (2026-07-20T15:22:45Z), 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/GX8KD2483957.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7104af0c90df2352bea5a1d41ac99038b0d7d3979876aba2caa8ae5d4a04acf. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/DEH742516909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bf9a55a3d81baaefc07c30b933bcdd8b0a4ad354dd630ea28df116fb4f853e9. Chain 2 (Bitcoin): anchored in block 957782 (2026-07-13T00:52:48Z), 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/IT2VK2500092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21e770ce1466e235a68eacb10e0c55889baf121f910e102007de62bd095da56d. 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/QZWV32516145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e80b45a61af8a75a3c56cb486e86e007d8819739d2b99b932c62aff636e4c16. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/QZZ8A2569940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89c24bc981bec4e61a7949da71c3595d2d539264f3dace01e36ce932a0bedaaa. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/ROROT2304600.