Pith Number

pith:Q44BSTIR

pith:2000:Q44BSTIRDWQS3VCQZSFSCB3AYS

not attested not anchored not stored refs pending

Evidence of self-interacting cold dark matter from galactic to galaxy cluster scales

3), 4), C. Firmani (1, E. D'Onghia (2), G. Chincarini(1, V. Avila-Reese (3), X. Hernandez(5) ((1) Osservatorio Astronomico di Brera (2) U. degli Studi di Milano (3) Instituto de Astronomia-UNAM (4) U. degli Studi di Milano-Bicocca (5) Osservatorio Astrofisico di Arcetri)

arxiv:astro-ph/0002376 v2 · 2000-02-19 · 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{Q44BSTIRDWQS3VCQZSFSCB3AYS}

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	2026-07-04T16:16:05.604781Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8738194d111da12dd450cc8b210760c4a9279fbf26271d75c82296cf21ae0a4d

Aliases

arxiv: astro-ph/0002376 · arxiv_version: astro-ph/0002376v2 · doi: 10.48550/arxiv.astro-ph/0002376 · pith_short_12: Q44BSTIRDWQS · pith_short_16: Q44BSTIRDWQS3VCQ · pith_short_8: Q44BSTIR

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/Q44BSTIRDWQS3VCQZSFSCB3AYS \
  | 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: 8738194d111da12dd450cc8b210760c4a9279fbf26271d75c82296cf21ae0a4d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bf3fd24fdb722ac1b0690ad28a095dcb07b59824bedbbf2073205ddd72f0430e",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2000-02-19T19:27:26Z",
    "title_canon_sha256": "4a0cfd1924274385f4b872d32bc0e0a51e874318f388f5f441de772d14c777e3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0002376",
    "kind": "arxiv",
    "version": 2
  }
}