Pith Number

pith:EMTXRO5M

pith:2001:EMTXRO5MQQCGAH66DK7GHTXCVA

not attested not anchored not stored refs pending

HI and dark matter in spiral galaxies

A. Bosma

arxiv:astro-ph/0112080 v1 · 2001-12-04 · 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{EMTXRO5MQQCGAH66DK7GHTXCVA}

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	2026-07-04T14:11:41.367706Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

232778bbac8404601fde1abe63cee2a833bd9a79c799271182e654c1c2dbe7a8

Aliases

arxiv: astro-ph/0112080 · arxiv_version: astro-ph/0112080v1 · doi: 10.48550/arxiv.astro-ph/0112080 · pith_short_12: EMTXRO5MQQCG · pith_short_16: EMTXRO5MQQCGAH66 · pith_short_8: EMTXRO5M

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/EMTXRO5MQQCGAH66DK7GHTXCVA \
  | 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: 232778bbac8404601fde1abe63cee2a833bd9a79c799271182e654c1c2dbe7a8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "911101876806465185110c9e692b689e132f53f8016ff88ccd33355625da8008",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2001-12-04T16:17:33Z",
    "title_canon_sha256": "86481b63f1f1caea4941595106ee8fec03d7add1422f341c836e7de41dfdb4a2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0112080",
    "kind": "arxiv",
    "version": 1
  }
}