Pith Number

pith:ORP5NRBL

pith:2012:ORP5NRBLQHDK546GF5QUFSJOUO

not attested not anchored not stored refs pending

The clustering of galaxies as a function of their photometrically-estimated atomic gas content

Barbara Catinella, Cheng Li, David Schiminovich, Guinevere Kauffmann, Jian Fu, Jing Wang, Silvia Fabello, Wei Zhang

arxiv:1202.2857 v2 · 2012-02-13 · 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{ORP5NRBLQHDK546GF5QUFSJOUO}

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	2026-05-18T01:58:29.023647Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

745fd6c42b81c6aef3c62f6142c92ea38d5916f1a447ea920ff8d7a403162d5f

Aliases

arxiv: 1202.2857 · arxiv_version: 1202.2857v2 · doi: 10.48550/arxiv.1202.2857 · pith_short_12: ORP5NRBLQHDK · pith_short_16: ORP5NRBLQHDK546G · pith_short_8: ORP5NRBL

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/ORP5NRBLQHDK546GF5QUFSJOUO \
  | 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: 745fd6c42b81c6aef3c62f6142c92ea38d5916f1a447ea920ff8d7a403162d5f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c4595ddfa75b745d8b299fd99d5705a29cf805c3cf714bd7780c1bee69e90ea6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2012-02-13T21:00:03Z",
    "title_canon_sha256": "a2b34dffa6bdffa1e875cb47a3c7db977cb92c45ffbf515d4afa386b24878587"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1202.2857",
    "kind": "arxiv",
    "version": 2
  }
}