Pith Number

pith:6ZBLYCXE

pith:1999:6ZBLYCXE2UECKE4XM7TIEYH5NN

not attested not anchored not stored refs pending

Brittle System Analysis

John Hershey, Kirby Vosburgh, Stephen F. Bush

arxiv:cs/9904016 v1 · 1999-04-22 · cs.NI · cs.CC · cs.GL · cs.PF

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{6ZBLYCXE2UECKE4XM7TIEYH5NN}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-07-04T15:51:19.921347Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f642bc0ae4d50825139767e68260fd6b718dbaa7d39cacbbc55df89ae722b16c

Aliases

arxiv: cs/9904016 · arxiv_version: cs/9904016v1 · doi: 10.48550/arxiv.cs/9904016 · pith_short_12: 6ZBLYCXE2UEC · pith_short_16: 6ZBLYCXE2UECKE4X · pith_short_8: 6ZBLYCXE

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/6ZBLYCXE2UECKE4XM7TIEYH5NN \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: f642bc0ae4d50825139767e68260fd6b718dbaa7d39cacbbc55df89ae722b16c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5ff92ccb4c63251189912e95abab712d8a2addd0fdc70ccc24973b34b6b48311",
    "cross_cats_sorted": [
      "cs.CC",
      "cs.GL",
      "cs.PF"
    ],
    "license": "",
    "primary_cat": "cs.NI",
    "submitted_at": "1999-04-22T15:47:22Z",
    "title_canon_sha256": "69f55827353fea515bd12a039007efa67e1a886d0dcd2d69c59a14740fb7e560"
  },
  "schema_version": "1.0",
  "source": {
    "id": "cs/9904016",
    "kind": "arxiv",
    "version": 1
  }
}