Pith Number

pith:PLEYCDWB

pith:1998:PLEYCDWBC2PDPNW5W5QTFQBF3J

not attested not anchored not stored refs pending

Is the Dark Matter a Solid?

Cambridge), David N. Spergel (Princeton), Martin Bucher (DAMTP

arxiv:astro-ph/9812022 v3 · 1998-12-01 · astro-ph · gr-qc · hep-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{PLEYCDWBC2PDPNW5W5QTFQBF3J}

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.

Cited by

1 paper in Pith

Effective Field Theories for Material Media

Receipt and verification

First computed	2026-07-04T15:45:43.568931Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7ac9810ec1169e37b6ddb76132c025da6cbc73bf8b27f87304d1ecf9c12bef46

Aliases

arxiv: astro-ph/9812022 · arxiv_version: astro-ph/9812022v3 · doi: 10.48550/arxiv.astro-ph/9812022 · pith_short_12: PLEYCDWBC2PD · pith_short_16: PLEYCDWBC2PDPNW5 · pith_short_8: PLEYCDWB

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/PLEYCDWBC2PDPNW5W5QTFQBF3J \
  | 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: 7ac9810ec1169e37b6ddb76132c025da6cbc73bf8b27f87304d1ecf9c12bef46

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "256131b5fed1599a4fd3178af030359e31bde2dcd1ff74d79c6e2e979fcfd32c",
    "cross_cats_sorted": [
      "gr-qc",
      "hep-ph"
    ],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1998-12-01T19:43:00Z",
    "title_canon_sha256": "79bc022eb7a2656c2e161562c99b2a14406306d81b74c9128cffa21de54d7b53"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9812022",
    "kind": "arxiv",
    "version": 3
  }
}