Pith Number

pith:H4HUEGQZ

pith:2019:H4HUEGQZQTFGTNSBNV6W6COGLT

not attested not anchored not stored refs pending

On the origin of central abundance drops in the intracluster medium of galaxy groups and clusters

Ang Liu, Meng Zhai, Paolo Tozzi

arxiv:1902.07661 v4 · 2019-02-19 · 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{H4HUEGQZQTFGTNSBNV6W6COGLT}

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	2026-05-17T23:48:57.932783Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3f0f421a1984ca69b6416d7d6f09c65ccb7fdceac44053b5bb953fa4cf2b57fb

Aliases

arxiv: 1902.07661 · arxiv_version: 1902.07661v4 · doi: 10.48550/arxiv.1902.07661 · pith_short_12: H4HUEGQZQTFG · pith_short_16: H4HUEGQZQTFGTNSB · pith_short_8: H4HUEGQZ

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/H4HUEGQZQTFGTNSBNV6W6COGLT \
  | 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: 3f0f421a1984ca69b6416d7d6f09c65ccb7fdceac44053b5bb953fa4cf2b57fb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "959d2892b479cfc1ecebbbeeb5ea743c246886f4a506e4e5621fc4fae6696e81",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2019-02-19T15:36:11Z",
    "title_canon_sha256": "a89292b20245c7feb26f3f50c835c838fe9a38d9940df004b4154d01675401bb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.07661",
    "kind": "arxiv",
    "version": 4
  }
}