Pith Number

pith:P6JK4FDK

pith:1998:P6JK4FDKJNAXQENW6BCZMEFQ3F

not attested not anchored not stored refs pending

Evidence in Virgo for the Universal Dark Matter Halo

Dean E. McLaughlin (UC Berkeley)

arxiv:astro-ph/9812242 v1 · 1998-12-12 · 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{P6JK4FDKJNAXQENW6BCZMEFQ3F}

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

Bounds on Axions-Like Particles Shining in the Ultra-Violet

Receipt and verification

First computed	2026-07-04T16:07:21.881019Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7f92ae146a4b417811b6f0459610b0d9402fdf483f142532a3ac761ee4ef3434

Aliases

arxiv: astro-ph/9812242 · arxiv_version: astro-ph/9812242v1 · doi: 10.48550/arxiv.astro-ph/9812242 · pith_short_12: P6JK4FDKJNAX · pith_short_16: P6JK4FDKJNAXQENW · pith_short_8: P6JK4FDK

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/P6JK4FDKJNAXQENW6BCZMEFQ3F \
  | 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: 7f92ae146a4b417811b6f0459610b0d9402fdf483f142532a3ac761ee4ef3434

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9363eca355ee15859ea8d69e2d6a65bfd4ddd81378872898eba72fbfeb91ccbe",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1998-12-12T03:04:06Z",
    "title_canon_sha256": "8bd73671f0034611ad0d3a24931734ac2b898b873ca612043cb2c157f3dabd37"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9812242",
    "kind": "arxiv",
    "version": 1
  }
}