Pith Number

pith:4CENOBMK

pith:2005:4CENOBMK6YLJMWLXJKCZCXNGR2

not attested not anchored not stored refs pending

Is it possible to tell the difference between fermionic and bosonic hot dark matter?

Andreas Ringwald, Huitzu Tu, Steen Hannestad, Yvonne Y. Y. Wong

arxiv:astro-ph/0507544 v1 · 2005-07-22 · astro-ph · 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{4CENOBMK6YLJMWLXJKCZCXNGR2}

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	2026-07-04T17:14:55.376114Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e088d7058af6169659774a85915da68e8cde97d5e31ce851fb0af3e80500ae8e

Aliases

arxiv: astro-ph/0507544 · arxiv_version: astro-ph/0507544v1 · doi: 10.48550/arxiv.astro-ph/0507544 · pith_short_12: 4CENOBMK6YLJ · pith_short_16: 4CENOBMK6YLJMWLX · pith_short_8: 4CENOBMK

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/4CENOBMK6YLJMWLXJKCZCXNGR2 \
  | 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: e088d7058af6169659774a85915da68e8cde97d5e31ce851fb0af3e80500ae8e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bdbb00dc9c45ba04b72bfe794e6335e7e53705538ae87f795e2bd487cc67816a",
    "cross_cats_sorted": [
      "hep-ph"
    ],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2005-07-22T17:55:51Z",
    "title_canon_sha256": "f822cbeec2be7e2c38ce539e7736ca0f580b6974e8ef4caa7351b4a8eb5e58c6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0507544",
    "kind": "arxiv",
    "version": 1
  }
}