Pith Number

pith:RJ2CEFPF

pith:2018:RJ2CEFPFNOJECNAKR7PDDOTSTT

not attested not anchored not stored refs pending

Evidence for massive warm-hot circumgalactic medium around NGC 3221

Anjali Gupta, Cody Null, Fabrizio Nicastro, Sanskriti Das, Smita Mathur, Yair Krongold

arxiv:1810.12454 v2 · 2018-10-29 · astro-ph.GA · astro-ph.HE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{RJ2CEFPFNOJECNAKR7PDDOTSTT}

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	2026-07-05T00:29:58.858849Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8a742215e56b9241340a8fde31ba729ce7f8b554d77dfc91ba421580b48fde0f

Aliases

arxiv: 1810.12454 · arxiv_version: 1810.12454v2 · doi: 10.48550/arxiv.1810.12454 · pith_short_12: RJ2CEFPFNOJE · pith_short_16: RJ2CEFPFNOJECNAK · pith_short_8: RJ2CEFPF

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/RJ2CEFPFNOJECNAKR7PDDOTSTT \
  | 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: 8a742215e56b9241340a8fde31ba729ce7f8b554d77dfc91ba421580b48fde0f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4dde7b3970dd1feca525b687552bf41386ca3993566cc01e7858e8fd28438222",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2018-10-29T23:16:09Z",
    "title_canon_sha256": "0ff36ee6e60a593e1739050be9759a7c3d2b45345a41f62ebce95add3f87cedd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1810.12454",
    "kind": "arxiv",
    "version": 2
  }
}