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https://jetfyul.com/v/JFD-20260927-CERT-00004

Certificate for JFD-20260926-PP-00002

PP-006-CERT-v2 · rail DCN JFD-20260927-CERT-00004 · status SUPERSEDED · seal v2, exact-bytes lane (GH-PIPELINE-001)

THIS DOCUMENT IS SUPERSEDED. Do not rely on it as current.

The seal of record is now JFD-20260928-CERT-00009. This page stays published and this seal stays valid over its own bytes; it is simply no longer current.

The artifact

SHA-256 (the file's raw bytes, verbatim): fab6988a9773f518212cc2433c6188da9e500d48b75851a6e51a4c07f91feac5
SHA-256 over the file RAW BYTES AS STORED, verbatim. The document is the final render (R2(b)): the locked master, the bound values and the author's signature; its seal-derived fields read PENDING because the sealed bytes cannot carry their own seal outcome. The seal outcome is carried by the ledger event, the seal page, the certificate and the verify page.
File: JFD-20260927-CERT-00004.pdf · 9127033 bytes.

Artifact class: resolved (READER/SUBJECT ruling v2, ledger kind-3 3094252; the class is fixed at birth and immutable after seal).

Block 1 — Author

K. L. Phillips, a man.

Block 2 — Issuer

ISSUER	Jet Fyul Dynamics LLC · Wyoming
RAIL	Matchstick Tribunal
CUSTODY	both witness keys held by the issuer, in silicon, on separate hosts; never exported

Block 3 — Rail seal

Sealed by ledger event 3199054 (kind-15), event hash d42dd1f7ccb35a44f6e9f4ded9837095523ec50cf67deedf4a2d1316ab39c06b, sealed 2026-09-27T22:15:12Z. Seal request canonical bytes: SHA-256 283832fb84b551d3bade0662b90100c8bb40b870203aedce16d97f0d75826eb5. Notary authorization: kind-3 event 3199051. One sealing pass, one sealing event.

Block 3a — Correction events

None recorded.

Block 4 — Witnesses

	identity	public key (P-256)	signature over the seal request · signed UTC
witness 1	`a9-atecc608b-slot0` serial `0123ADA0711D8597EE` A9 · Jet Fyul Dynamics LLC	`d62d03f8dc3813fb5b74f2b64339d185742aabcae1bdcfd2f7a7ad59f1dd3c5d50e57effa4a3c888f58c3eca9d274bd7f0b8d263fa38bbf0bc6fbff6035c2411`	`b62be0fe867a8a6a93b96c85348a5d25f822421dfc4c65bfbdd4df5f8ce5a44d9acc3777812f256c5514f53253ddb73db508b8899c418d9f414f4b2b714b58d6` 2026-09-27T22:15:23.304671+00:00 verified offline: True peer a10-atecc608b-slot0
witness 2	`a10-atecc608b-slot0` serial `0123DC797ACC1195EE` A10 · Jet Fyul Dynamics LLC	`853e69fc700990303abfe61358bfa456160eaae1529dbc74805d1639cfc88e78497bbe060e7ae5d54466b2ce0a2753e14204a21eed4a132a61ace3294f9beba1`	`6265511a20fb9cbb4212de438a5adbf212542a2be52be6a0753ed7752a8be7c64fa8e7b67bff6bbc20f199ded4f9d99cd9403cb90ffe8d1f37655888530bb957` 2026-09-27T22:15:25.789073+00:00 verified offline: True peer a9-atecc608b-slot0

Block 6 — Bitcoin anchor — ATTESTED

ATTESTED in Bitcoin block 968902 (2026-09-27T23:24:41+00:00).
Confirmation event 3203876.

Verify it yourself

SHA-256 the file's bytes exactly as stored; it must equal the digest above.
Read ledger event 3199054 by id; its payload's doc_sha256 must be the same digest and its hardware_signatures the two entries above.
Verify each witness signature offline: ECDSA P-256 over the seal-request bytes, against the public key above.
Verify the OpenTimestamps proof; when ATTESTED, the Bitcoin block is the timestamp.

This is a certificate

Authenticity certificate (no Rule 902 declaration, no buyer) — certifies DCN JFD-20260926-PP-00002, sealing event 3171918, digest 4005f0a42b1de3374e4564784c688200fb1265475ea4e2220a40a68a89b9152d. Its verify page.

The certified document is ATTESTED in Bitcoin block 968723 (block hash 00000000000000000001e3f409a717157593424144a26bc6a474134824e80dbe, block time 2026-09-26T17:42:26Z). This certificate was sealed after that anchor confirmed and states it.

Supersession

This version supersedes JFD-20260926-CERT-00002, digest 68fd98be10a70f3713296fafc907ceb3b587d2c21218208a6d4918b1d2fa5f95 (ledger event 3171925).
Reason: JFD-20260926-CERT-00002 was rendered and sealed before the certified document's anchor confirmed, so it could not state the Bitcoin block. This certificate is the same certification with the block stated (block 968723). The certified document, its fingerprint, its sealing event and its witness signatures are unchanged.

Attachments

#	item	file · sha256
1	the sealed Artifact (final bytes, verbatim)	JFD-20260927-CERT-00004.pdf `fab6988a9773f518212cc2433c6188da9e500d48b75851a6e51a4c07f91feac5` (9127033 bytes)
2	the ledger event payload(s): pass-1 and final kind-15, Notary kind-3	NOT PUBLISHED — event export not present for this DCN
3	seal-request canonical bytes + sha256 (the material both witnesses signed)	seal-request-p1.json `283832fb84b551d3bade0662b90100c8bb40b870203aedce16d97f0d75826eb5` (585 bytes) seal-request-p1.sha256 `20b5a1c515ef61324509badcc2ad92705d805aee16584441c15551434efed8ae` (87 bytes)
4	both witness public keys and signatures (P-256, over the seal-request bytes)	witnesses.json `2a786279f3da60fa65d9c66b238971236d09bcc9a76b2f542f66fd25591410c9` (1915 bytes)
5	the Rail's Ed25519 public key (a1-ledger-ed25519)	rail-ed25519-pubkey.txt `3f5755662bb8bde9150376972d0e9e9a708122991c548546ad600e1161a93419` (592 bytes)
6	the OpenTimestamps proof (.ots)	JFD-20260927-CERT-00004.pdf.ots `ef95055e5f62b6fd5d05d16d3960c40aca5f22411a51300a28ccf11daad1741a` (1962 bytes)
7	MT-CC-SEALDOC-002 (the directive this seal was made under)	MT-CC-SEALDOC-002.md `daa1e984fbc945ecf3459d2149c8940cc77e24f0f3d12d396d00c61fa7452c14` (8908 bytes)

History

2026-09-27T22:15:12Z — SEALED kind-15 3199054 (GH-PIPELINE-001 run PP-006-v2-PROD-CERTV2-JFD-20260927-CERT-00004-afdcd642)
2026-09-27T22:15:36Z — SEALED CERT v2: supersedes JFD-20260926-CERT-00002 (CERT-V2-REISSUE-20260927)
2026-09-28T00:48:03Z — SEALED Block 6: OTS proof attested in Bitcoin block 968902 (2026-09-27T23:24:41+00:00), merkle root confirmed against the chain; rail page re-rendered
2026-09-28T03:31:52Z — SEALED anchor confirmation banked: kind-3 3203876 (two-explorer check)
2026-09-28T20:26:28Z — SUPERSEDED superseded by JFD-20260928-CERT-00009 (kind-15 3218935; witnesses A9 0123ADA0 + A10 0123DC79). Reason: issued before the certificate design of record was applied; nothing about the certified document changed; re-issued on the design of record for its document type (Proof Posit: Smoking Gun; Full Proof: Turing), TPA GH-DIR-20260928-ON. This seal remains a valid seal of its own bytes; it is no longer the seal of record. Files moved to cc-drop\sealed\superseded (CERT-V3-DESIGN-20260928, 2026-09-28).

Rail page generated by the Matchstick rail on A3 under GH-PIPELINE-001 (Stage 6 REGISTER).