Pith Number

pith:PZUMYFJX

pith:2007:PZUMYFJXLBQHSSOUPIHZ7PXBIZ

not attested not anchored not stored refs pending

Suppressed radio emission in supercluster galaxies: enhanced ram pressure in merging clusters?

2) ((1) Institut d'Astrophysique de Paris (2) GEPI, Gary A. Mamon (1, Jean-Christophe Mauduit (1), Observatoire de Paris)

arxiv:0704.3431 v3 · 2007-04-25 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PZUMYFJXLBQHSSOUPIHZ7PXBIZ}

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	2026-05-18T04:02:01.241790Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7e68cc153758607949d47a0f9fbee14670a43d1fe6831b303cdc321f859d9f00

Aliases

arxiv: 0704.3431 · arxiv_version: 0704.3431v3 · doi: 10.48550/arxiv.0704.3431 · pith_short_12: PZUMYFJXLBQH · pith_short_16: PZUMYFJXLBQHSSOU · pith_short_8: PZUMYFJX

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/PZUMYFJXLBQHSSOUPIHZ7PXBIZ \
  | 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: 7e68cc153758607949d47a0f9fbee14670a43d1fe6831b303cdc321f859d9f00

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "50be67332ae86c13f81e8fd73c9d956d7f7abfa8ea33f5dfc4e4181028d5be30",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph",
    "submitted_at": "2007-04-25T19:52:37Z",
    "title_canon_sha256": "a155840854b171dbcf0b12135ddd4b9c54ea8f014eb19cc90bf49df2f83f5d50"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0704.3431",
    "kind": "arxiv",
    "version": 3
  }
}