Pith Number

pith:5RGQFT4C

pith:2013:5RGQFT4CABENEJM2VEKN7EMG4Q

not attested not anchored not stored refs pending

A Search for Planetary Nebulae With the SDSS: the outer regions of M31

A.Y. Kniazev, D.B. Zucker, D. Martinez-Delgado, E.K. Grebel, H-W. Rix, S.A. Snedden

arxiv:1311.1951 v1 · 2013-11-08 · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5RGQFT4CABENEJM2VEKN7EMG4Q}

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	2026-05-18T01:46:32.932606Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ec4d02cf820048d2259aa914df9186e43309c9a3cb051c350a98c0e5dded96fd

Aliases

arxiv: 1311.1951 · arxiv_version: 1311.1951v1 · doi: 10.48550/arxiv.1311.1951 · pith_short_12: 5RGQFT4CABEN · pith_short_16: 5RGQFT4CABENEJM2 · pith_short_8: 5RGQFT4C

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/5RGQFT4CABENEJM2VEKN7EMG4Q \
  | 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: ec4d02cf820048d2259aa914df9186e43309c9a3cb051c350a98c0e5dded96fd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1fa71ef27568ceac9d88dc5627e1c5968e61bfb45bfd38ab83c4588ad4d7f5fe",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2013-11-08T12:17:28Z",
    "title_canon_sha256": "64c189593fc3ea795db3942ee45514773cf533060f921701e0025c44e5d945ce"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1311.1951",
    "kind": "arxiv",
    "version": 1
  }
}