Pith Number

pith:EOZXNYY4

pith:2009:EOZXNYY4DB3A7PAC2JHS2N5G57

not attested not anchored not stored refs pending

The edge of the M87 halo and the kinematics of the diffuse light in the Virgo cluster core

George H. Jacoby, Giuseppe Murante, J. Alfonso L. Aguerri, John J. Feldmeier, Kenneth C. Freeman, Magda Arnaboldi, Michelle Doherty, Ortwin Gerhard, Payel Das, Robin Ciardullo

arxiv:0905.1958 v1 · 2009-05-12 · astro-ph.CO · 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{EOZXNYY4DB3A7PAC2JHS2N5G57}

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	2026-05-18T02:13:39.805034Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

23b376e31c18760fbc02d24f2d37a6eff12abe4a8147d5a9044ccd4f6662eef0

Aliases

arxiv: 0905.1958 · arxiv_version: 0905.1958v1 · doi: 10.48550/arxiv.0905.1958 · pith_short_12: EOZXNYY4DB3A · pith_short_16: EOZXNYY4DB3A7PAC · pith_short_8: EOZXNYY4

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/EOZXNYY4DB3A7PAC2JHS2N5G57 \
  | 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: 23b376e31c18760fbc02d24f2d37a6eff12abe4a8147d5a9044ccd4f6662eef0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cde4f122ce00fab0cb4ea561ca64455af8e6e693165d2bfd706b8029c0c617c4",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-05-12T20:19:39Z",
    "title_canon_sha256": "274dd19562611704184d1e03abb2a689864f1a39277a266a967ac3376e02888c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0905.1958",
    "kind": "arxiv",
    "version": 1
  }
}