Pith Number

pith:FM7QFYJG

pith:2018:FM7QFYJGIDBMEQ4PYR6DYA544A

not attested not anchored not stored refs pending

Prevalence of neutral gas in centres of merging galaxies

Neeraj Gupta, Raghunathan Srianand, Rajeshwari Dutta

arxiv:1807.04298 v1 · 2018-07-11 · 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{FM7QFYJGIDBMEQ4PYR6DYA544A}

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	2026-05-18T00:09:10.880183Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2b3f02e12640c2c2438fc47c3c03bce01c2a108dfb66607a3a8775935d8fcc96

Aliases

arxiv: 1807.04298 · arxiv_version: 1807.04298v1 · doi: 10.48550/arxiv.1807.04298 · pith_short_12: FM7QFYJGIDBM · pith_short_16: FM7QFYJGIDBMEQ4P · pith_short_8: FM7QFYJG

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/FM7QFYJGIDBMEQ4PYR6DYA544A \
  | 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: 2b3f02e12640c2c2438fc47c3c03bce01c2a108dfb66607a3a8775935d8fcc96

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a6e007f0eb7ea070b51a52c649af74ab4917070d866f9965a96b94a160dfce28",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2018-07-11T18:00:12Z",
    "title_canon_sha256": "8b0f56261d819a753557fd8e4165a1c39b1d93589a30ef314cbd622f9f9ba7f0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.04298",
    "kind": "arxiv",
    "version": 1
  }
}