Pith Number

pith:C7FVBO7F

pith:2013:C7FVBO7FJB3OAGIXDJFNKJSRHN

not attested not anchored not stored refs pending

The mass of the Milky Way and M31 using the method of least action

Adi Nusser, Steven Phelps, Vincent Desjacques

arxiv:1306.4013 v2 · 2013-06-17 · 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{C7FVBO7FJB3OAGIXDJFNKJSRHN}

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	2026-05-18T03:11:23.804288Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

17cb50bbe54876e019171a4ad526513b6d2977250ed77e1c9550df44252aa301

Aliases

arxiv: 1306.4013 · arxiv_version: 1306.4013v2 · doi: 10.48550/arxiv.1306.4013 · pith_short_12: C7FVBO7FJB3O · pith_short_16: C7FVBO7FJB3OAGIX · pith_short_8: C7FVBO7F

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/C7FVBO7FJB3OAGIXDJFNKJSRHN \
  | 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: 17cb50bbe54876e019171a4ad526513b6d2977250ed77e1c9550df44252aa301

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "79a92e8d08deb4216fe584ef8ca79507bbe8e568b8637c01c997e278a04534ff",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2013-06-17T20:34:45Z",
    "title_canon_sha256": "5e783931b9e7fc7ae2a4adcd987940f5f2c3624d85097fc2dd33abf4d8b06fbc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1306.4013",
    "kind": "arxiv",
    "version": 2
  }
}