Pith Number

pith:WLLXM3KW

pith:1998:WLLXM3KWLD5DOPSFDQ7U2NE4XN

not attested not anchored not stored refs pending

Formation of Interstellar Ices Behind shock Waves

David A. Neufeld (JHU), Edwin A. Bergin (CfA), Gary J. Melnick (CfA)

arxiv:astro-ph/9811228 v1 · 1998-11-13 · 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{WLLXM3KWLD5DOPSFDQ7U2NE4XN}

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	2026-07-04T16:07:11.143512Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b2d7766d5658fa373e451c3f4d349cbb6b46088315210eab6170c62aad4438eb

Aliases

arxiv: astro-ph/9811228 · arxiv_version: astro-ph/9811228v1 · doi: 10.48550/arxiv.astro-ph/9811228 · pith_short_12: WLLXM3KWLD5D · pith_short_16: WLLXM3KWLD5DOPSF · pith_short_8: WLLXM3KW

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/WLLXM3KWLD5DOPSFDQ7U2NE4XN \
  | 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: b2d7766d5658fa373e451c3f4d349cbb6b46088315210eab6170c62aad4438eb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ad94c608a74fb5b3c203d14d9da3e736ce02b2745285de661ae490b636cb79e0",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1998-11-13T20:59:37Z",
    "title_canon_sha256": "c7fa7d4cdcfbc53948c2dd7c2743de48a78bb208a5e0f06f85b5226126bdd187"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9811228",
    "kind": "arxiv",
    "version": 1
  }
}