Pith Number

pith:SHMD7FQL

pith:2012:SHMD7FQLLSRLNKQWNRSVQ2BDEG

not attested not anchored not stored refs pending

Dark Matter collisions with the Human Body

Christopher Savage, Katherine Freese

arxiv:1204.1339 v2 · 2012-04-05 · astro-ph.CO · hep-ph

Open paper page JSON Open Graph Bundle Merged state What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SHMD7FQLLSRLNKQWNRSVQ2BDEG}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T01:57:56.476601Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

91d83f960b5ca2b6aa166c65586823218b9563ae5d2b36e780606747c0676670

Aliases

arxiv: 1204.1339 · arxiv_version: 1204.1339v2 · doi: 10.48550/arxiv.1204.1339 · pith_short_12: SHMD7FQLLSRL · pith_short_16: SHMD7FQLLSRLNKQW · pith_short_8: SHMD7FQL

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/SHMD7FQLLSRLNKQWNRSVQ2BDEG \
  | 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: 91d83f960b5ca2b6aa166c65586823218b9563ae5d2b36e780606747c0676670

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8d26db3bb46a149d6f4956a58ddb5ceffe6e5fb2601c1b5f6a91b62be49eaede",
    "cross_cats_sorted": [
      "hep-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2012-04-05T20:00:01Z",
    "title_canon_sha256": "db0c1b1ee3d677711c11f72968969afa366989726dd0a253b0af1bf668b82e36"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1204.1339",
    "kind": "arxiv",
    "version": 2
  }
}