Pith Number

pith:GD3CRD6E

pith:2010:GD3CRD6EHTASPTHPWI5276HTST

not attested not anchored not stored refs pending

The Masses of the Milky Way and Andromeda galaxies

(2)NAO, Beijing, Cambridge, China), J. An (2) ((1)IoA, L.L. Watkins (1), N.W. Evans (1)

arxiv:1002.4565 v1 · 2010-02-24 · 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{GD3CRD6EHTASPTHPWI5276HTST}

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	2026-05-18T02:08:57.248832Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

30f6288fc43cc127ccefb23baff8f394c9a005cbc4e727c24986ba15e6451340

Aliases

arxiv: 1002.4565 · arxiv_version: 1002.4565v1 · doi: 10.48550/arxiv.1002.4565 · pith_short_12: GD3CRD6EHTAS · pith_short_16: GD3CRD6EHTASPTHP · pith_short_8: GD3CRD6E

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/GD3CRD6EHTASPTHPWI5276HTST \
  | 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: 30f6288fc43cc127ccefb23baff8f394c9a005cbc4e727c24986ba15e6451340

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8c0d40cfef16c0e8f7918e91a1e9b3b67fde5c39219f568f0fcb01e94309b50f",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2010-02-24T15:46:21Z",
    "title_canon_sha256": "353553af48a400df10f849f2751efd92cb38c096995efc8d231c002ec204cabb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1002.4565",
    "kind": "arxiv",
    "version": 1
  }
}