Pith Number

pith:ANRUGNFK

pith:2010:ANRUGNFKVG6TAG2DCBHRMFISIM

not attested not anchored not stored refs pending

How to Weigh a Star Using a Moon

David M. Kipping

arxiv:1010.2492 v1 · 2010-10-12 · astro-ph.EP · astro-ph.SR

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ANRUGNFKVG6TAG2DCBHRMFISIM}

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	2026-05-18T02:05:05.867493Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

03634334aaa9bd301b43104f161512432ad14c2a0b65102b7b165eb5afa5fc83

Aliases

arxiv: 1010.2492 · arxiv_version: 1010.2492v1 · doi: 10.48550/arxiv.1010.2492 · pith_short_12: ANRUGNFKVG6T · pith_short_16: ANRUGNFKVG6TAG2D · pith_short_8: ANRUGNFK

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/ANRUGNFKVG6TAG2DCBHRMFISIM \
  | 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: 03634334aaa9bd301b43104f161512432ad14c2a0b65102b7b165eb5afa5fc83

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1fd8aee83c8a48a2d5307591eafd5459b49d842f9a298ad08ca0983822051638",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2010-10-12T20:00:02Z",
    "title_canon_sha256": "4db109e92bccf0d0c04f9ded7d90aa22fbebd7cdb51716d7f56820be2cd65392"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1010.2492",
    "kind": "arxiv",
    "version": 1
  }
}