Pith Number

pith:RER2IFUM

pith:1995:RER2IFUMGZUV3AENWODPJINKD2

not attested not anchored not stored refs pending

Constraints on Self-Interacting Dark Matter

Andrew A. de Laix, Robert J. Scherrer, Robert K. Schaefer

arxiv:astro-ph/9502087 v1 · 1995-02-20 · 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{RER2IFUMGZUV3AENWODPJINKD2}

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

Dark Matter on a Slide

Receipt and verification

First computed	2026-05-18T04:22:19.544471Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8923a4168c36695d808db386f4a1aa1ead83ffea995151ee664acc75ad1000f9

Aliases

arxiv: astro-ph/9502087 · arxiv_version: astro-ph/9502087v1 · doi: 10.48550/arxiv.astro-ph/9502087 · pith_short_12: RER2IFUMGZUV · pith_short_16: RER2IFUMGZUV3AEN · pith_short_8: RER2IFUM

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/RER2IFUMGZUV3AENWODPJINKD2 \
  | 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: 8923a4168c36695d808db386f4a1aa1ead83ffea995151ee664acc75ad1000f9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "de15d9dbc7fdd0a448058f7bf972fb35bd176fec98fb25488850c10ee83713c3",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1995-02-20T20:20:17Z",
    "title_canon_sha256": "76cfc35adfe31480d96a5c7e55a830398cd62909bcb881d38ca3b97cec0fe10e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9502087",
    "kind": "arxiv",
    "version": 1
  }
}