Pith Number

pith:EVIZ67ZZ

pith:2011:EVIZ67ZZWPNDSHSJUP677NMY7O

not attested not anchored not stored refs pending

The ongoing assembly of a central cluster galaxy: Phase-space substructures in the halo of M87

Aaron J. Romanowsky, Caroline Foster, Duncan A. Forbes, Jacob A. Arnold, Jay Strader, J. Christopher Mihos, Jean P. Brodie, Lee R. Spitler

arxiv:1112.3959 v1 · 2011-12-16 · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EVIZ67ZZWPNDSHSJUP677NMY7O}

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	2026-05-18T01:59:06.444874Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

25519f7f39b3da391e49a3fdffb598fb9536002c120c91727833b381869cd35e

Aliases

arxiv: 1112.3959 · arxiv_version: 1112.3959v1 · doi: 10.48550/arxiv.1112.3959 · pith_short_12: EVIZ67ZZWPND · pith_short_16: EVIZ67ZZWPNDSHSJ · pith_short_8: EVIZ67ZZ

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/EVIZ67ZZWPNDSHSJUP677NMY7O \
  | 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: 25519f7f39b3da391e49a3fdffb598fb9536002c120c91727833b381869cd35e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "56ca0c63214dbecf4ca3088b95927aa8d5327ad2c4ae7d722ec617fbc279809c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2011-12-16T21:00:00Z",
    "title_canon_sha256": "5955aa4ed1a54c6548d235a492fb664df9b257bf7ec7aefbf3f8caf4710f8013"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1112.3959",
    "kind": "arxiv",
    "version": 1
  }
}