Pith Number

pith:VQ4JJBWW

pith:2019:VQ4JJBWWII7Z4F4D5YSSZRVE3Z

not attested not anchored not stored refs pending

The hidden circumgalactic medium

Axel Weiss, Bitten Gullberg, Carlos De Breuck, Chian-Chou Chen, Claudia Cicone, Desika Narayanan, Dominik Riechers, Eelco van Kampen, James Geach, J. Colin Hill, Jeff Wagg, Jens Kauffmann, Kotaro Kohno, Pamela Klaassen, Paola Andreani, Sijing Shen, Simcha Brownson, Tony Mroczkowski

arxiv:1903.04531 v1 · 2019-03-11 · 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{VQ4JJBWWII7Z4F4D5YSSZRVE3Z}

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	2026-05-17T23:51:29.365686Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ac389486d6423f9e1783ee252cc6a4de674953478080ebd3d76ccf5f189718ac

Aliases

arxiv: 1903.04531 · arxiv_version: 1903.04531v1 · doi: 10.48550/arxiv.1903.04531 · pith_short_12: VQ4JJBWWII7Z · pith_short_16: VQ4JJBWWII7Z4F4D · pith_short_8: VQ4JJBWW

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/VQ4JJBWWII7Z4F4D5YSSZRVE3Z \
  | 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: ac389486d6423f9e1783ee252cc6a4de674953478080ebd3d76ccf5f189718ac

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5c98f5bc726b0d223357edc31d7267d9131ec0224b5aa68aedee482704e25505",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2019-03-11T18:37:34Z",
    "title_canon_sha256": "ef63e822bf3642a037a7bf890be946b36e099a575008937e62206f0e3c5a55f7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1903.04531",
    "kind": "arxiv",
    "version": 1
  }
}