Pith Number

pith:2XCFBP3X

pith:2013:2XCFBP3XCWOWGALE5WRJKLXP7M

not attested not anchored not stored refs pending

Halpha3: an Halpha imaging survey of HI selected galaxies from ALFALFA. II. The star formation properties of galaxies in the Virgo cluster and surroundings

Alessandro Boselli, Francesco Grossetti, Giuseppe Gavazzi, Martha P. Haynes, Matteo Fossati, Michele Fumagalli, Riccardo Giovanelli, Vincenzo Galardo

arxiv:1303.2846 v2 · 2013-03-12 · 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{2XCFBP3XCWOWGALE5WRJKLXP7M}

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	2026-05-18T01:51:08.293680Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d5c450bf77159d630164eda2952eeffb2b7e7be1bc1d4b4819f65cac6451c16f

Aliases

arxiv: 1303.2846 · arxiv_version: 1303.2846v2 · doi: 10.48550/arxiv.1303.2846 · pith_short_12: 2XCFBP3XCWOW · pith_short_16: 2XCFBP3XCWOWGALE · pith_short_8: 2XCFBP3X

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/2XCFBP3XCWOWGALE5WRJKLXP7M \
  | 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: d5c450bf77159d630164eda2952eeffb2b7e7be1bc1d4b4819f65cac6451c16f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "32c70e3b5196a866aad279e3d1937cef2fcd528c527aaf492f50bc28613ef85c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2013-03-12T11:26:02Z",
    "title_canon_sha256": "ea61028ead524be5964e8a490c5ef9a53110400246d248475b944043a48fd696"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1303.2846",
    "kind": "arxiv",
    "version": 2
  }
}