Pith Number

pith:CADQGUUU

pith:2013:CADQGUUUOXF2ZDB3D4NLAGTW3O

not attested not anchored not stored refs pending

Probing the Extended Gaseous Regions of M31 with Quasar Absorption Lines

Daniel Vanden Berk, David Thilker, David Turnshek, Donald York, Gendith Sardane, Rene Walterbos, Sandhya Rao

arxiv:1302.7026 v2 · 2013-02-27 · 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{CADQGUUUOXF2ZDB3D4NLAGTW3O}

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	2026-05-18T01:51:26.359971Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

100703529475cbac8c3b1f1ab01a76dbb0aeb5ef623d52dc29f0c3719ba1f268

Aliases

arxiv: 1302.7026 · arxiv_version: 1302.7026v2 · doi: 10.48550/arxiv.1302.7026 · pith_short_12: CADQGUUUOXF2 · pith_short_16: CADQGUUUOXF2ZDB3 · pith_short_8: CADQGUUU

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/CADQGUUUOXF2ZDB3D4NLAGTW3O \
  | 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: 100703529475cbac8c3b1f1ab01a76dbb0aeb5ef623d52dc29f0c3719ba1f268

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f2fb96b4461aea0625d576ccc6a205829b38b9ac742f1d292b4cd5fc08d52309",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2013-02-27T23:10:04Z",
    "title_canon_sha256": "fcb839cac0ec8c21fe1a9c46063f027ccd048cd9a7e5234c01e409c7a300ffe2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1302.7026",
    "kind": "arxiv",
    "version": 2
  }
}