Pith Number

pith:QP3UTVZ3

pith:2013:QP3UTVZ3SG4SDWUVLIMR4LJ5BI

not attested not anchored not stored refs pending

Properties of Galactic Dark Matter: Constraints from Astronomical Observations

Benjamin Burch, Ramanath Cowsik

arxiv:1306.1920 v3 · 2013-06-08 · astro-ph.GA · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QP3UTVZ3SG4SDWUVLIMR4LJ5BI}

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	2026-05-18T03:04:49.254885Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

83f749d73b91b921da955a191e2d3d0a35ae0b2c218877398632c54e08103bb2

Aliases

arxiv: 1306.1920 · arxiv_version: 1306.1920v3 · doi: 10.48550/arxiv.1306.1920 · pith_short_12: QP3UTVZ3SG4S · pith_short_16: QP3UTVZ3SG4SDWUV · pith_short_8: QP3UTVZ3

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/QP3UTVZ3SG4SDWUVLIMR4LJ5BI \
  | 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: 83f749d73b91b921da955a191e2d3d0a35ae0b2c218877398632c54e08103bb2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9881a39529a1c1baac99d43edc63c9177d766885fdea05a83543ed9b99e11dc6",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2013-06-08T13:41:49Z",
    "title_canon_sha256": "2dce75c73f737ca767b9ada1bfe565bada677ed640d7d65d8d3b4404921abfab"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1306.1920",
    "kind": "arxiv",
    "version": 3
  }
}