Pith Number

pith:ED4T2IPB

pith:2026:ED4T2IPBQCGDENNYDZRLJEIZKQ

not attested not anchored not stored refs pending

Even central galaxies feel their environment: cosmic siphoning of cool gas accretion

Ke Xu, Tao Wang

arxiv:2607.13961 v1 · 2026-07-15 · 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{ED4T2IPBQCGDENNYDZRLJEIZKQ}

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	2026-07-16T01:23:16.857295Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

20f93d21e1808c3235b81e62b49119542afaac289f4219a515ce0933bc61ad83

Aliases

arxiv: 2607.13961 · arxiv_version: 2607.13961v1 · doi: 10.48550/arxiv.2607.13961 · pith_short_12: ED4T2IPBQCGD · pith_short_16: ED4T2IPBQCGDENNY · pith_short_8: ED4T2IPB

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/ED4T2IPBQCGDENNYDZRLJEIZKQ \
  | 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: 20f93d21e1808c3235b81e62b49119542afaac289f4219a515ce0933bc61ad83

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "99939a86ebedff4baeb45e20e945ce75bc6231087f6e0cffd8342c75f1762416",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2026-07-15T15:47:21Z",
    "title_canon_sha256": "1e2115602f701a9f7fc335120d2abd379f58550c9b1f3e3374de8e7fc7d44844"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.13961",
    "kind": "arxiv",
    "version": 1
  }
}