Pith Number

pith:SFFQKCMD

pith:2002:SFFQKCMDZDB6VCF4JIJ4HQ5XX3

not attested not anchored not stored refs pending

Numerical simulations of the intergalactic medium

Cambridge), Tom Theuns (IoA

arxiv:astro-ph/0209094 v1 · 2002-09-05 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SFFQKCMDZDB6VCF4JIJ4HQ5XX3}

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	2026-07-04T14:12:12.528095Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

914b050983c8c3ea88bc4a13c3c3b7bef53bbb6f1b3a07752da0cb8f5ef76413

Aliases

arxiv: astro-ph/0209094 · arxiv_version: astro-ph/0209094v1 · doi: 10.48550/arxiv.astro-ph/0209094 · pith_short_12: SFFQKCMDZDB6 · pith_short_16: SFFQKCMDZDB6VCF4 · pith_short_8: SFFQKCMD

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/SFFQKCMDZDB6VCF4JIJ4HQ5XX3 \
  | 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: 914b050983c8c3ea88bc4a13c3c3b7bef53bbb6f1b3a07752da0cb8f5ef76413

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "830c128a77c13b10f2b68b38cee8520362e4dc6010b44e09a89ff9601ff8ab65",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2002-09-05T09:01:31Z",
    "title_canon_sha256": "679645ee2e136072027d5a1d44f0a3d2bfa339407494b9f20aa1c1a5a3d67159"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0209094",
    "kind": "arxiv",
    "version": 1
  }
}