Pith Number

pith:ACTE6PHT

pith:2009:ACTE6PHTF3GN47BQ5CTYYHUAFD

not attested not anchored not stored refs pending

Discrepant Mass Estimates in the Cluster of Galaxies Abell 1689

E.-H. Peng, G. P. Garmire, K. Andersson, M. W. Bautz

arxiv:0906.4153 v1 · 2009-06-23 · 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{ACTE6PHTF3GN47BQ5CTYYHUAFD}

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	2026-05-18T04:29:42.623722Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

00a64f3cf32eccde7c30e8a78c1e8028d60f8355f5fa588b680755070496a920

Aliases

arxiv: 0906.4153 · arxiv_version: 0906.4153v1 · doi: 10.48550/arxiv.0906.4153 · pith_short_12: ACTE6PHTF3GN · pith_short_16: ACTE6PHTF3GN47BQ · pith_short_8: ACTE6PHT

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/ACTE6PHTF3GN47BQ5CTYYHUAFD \
  | 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: 00a64f3cf32eccde7c30e8a78c1e8028d60f8355f5fa588b680755070496a920

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e6faa167460fe28f926f881a3ccdce5ce3a6e9e52700ea5e8a2d7fd5b1f178b5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-06-23T18:24:42Z",
    "title_canon_sha256": "429f773575d919c83f288f9955673d7c1155ef6cf1c1000e31dd8aa480f0eab8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0906.4153",
    "kind": "arxiv",
    "version": 1
  }
}