Pith Number

pith:IUL2V3QZ

pith:2009:IUL2V3QZQKLZDNKFV2BSQLBGRS

not attested not anchored not stored refs pending

The central surface density of "dark halos" predicted by MOND

Mordehai Milgrom (Weizmann Institute)

arxiv:0909.5184 v1 · 2009-09-28 · 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{IUL2V3QZQKLZDNKFV2BSQLBGRS}

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	2026-05-18T02:34:27.351278Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4517aaee19829791b545ae83282c268ca7e45294be83a7f7c4772726802fa30c

Aliases

arxiv: 0909.5184 · arxiv_version: 0909.5184v1 · doi: 10.48550/arxiv.0909.5184 · pith_short_12: IUL2V3QZQKLZ · pith_short_16: IUL2V3QZQKLZDNKF · pith_short_8: IUL2V3QZ

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/IUL2V3QZQKLZDNKFV2BSQLBGRS \
  | 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: 4517aaee19829791b545ae83282c268ca7e45294be83a7f7c4772726802fa30c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0cfe2d441a7f33b68ca124560d143933a6dfc37d3c3865a9864e56c6a3c2d38c",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/publicdomain/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-09-28T20:00:04Z",
    "title_canon_sha256": "9e2ca98493403cd9bc56e9f84a43e06821961436a6b43cda7849c45d8098d49e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0909.5184",
    "kind": "arxiv",
    "version": 1
  }
}