Pith Number

pith:EFXNFYRO

pith:2013:EFXNFYROXQQGNAAQOEFWQJRFZT

not attested not anchored not stored refs pending

ALFALFA Discovery of the Nearby Gas-Rich Dwarf Galaxy Leo~P. II. Optical Imaging Observations

Angela Van Sistine, Elizabeth A. K. Adams, Evan D. Skillman, John J. Salzer, John M. Cannon, Katherine L. Rhode, Kristen B. W. McQuinn, Martha P. Haynes, Michael D. Young, Nathalie C. Haurberg, Riccardo Giovanelli

arxiv:1305.0270 v1 · 2013-05-01 · 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{EFXNFYROXQQGNAAQOEFWQJRFZT}

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	2026-07-04T23:57:44.302580Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

216ed2e22ebc20668010710b682625ccf0ae92f3ca25c725d891e174757f59bb

Aliases

arxiv: 1305.0270 · arxiv_version: 1305.0270v1 · doi: 10.48550/arxiv.1305.0270 · pith_short_12: EFXNFYROXQQG · pith_short_16: EFXNFYROXQQGNAAQ · pith_short_8: EFXNFYRO

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/EFXNFYROXQQGNAAQOEFWQJRFZT \
  | 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: 216ed2e22ebc20668010710b682625ccf0ae92f3ca25c725d891e174757f59bb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "99ba0d9dd501316cfe3e06bc1fa26f72bd97645ba700371e0207808d4620e1cb",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2013-05-01T20:00:10Z",
    "title_canon_sha256": "be42cc3483e6f01c608cac03883daf8563cadf675aec709adf55d76328fd7f78"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1305.0270",
    "kind": "arxiv",
    "version": 1
  }
}