Pith Number

pith:4G7FRRRC

pith:2012:4G7FRRRCKEH6FMPFZVNLELQ7PO

not attested not anchored not stored refs pending

A filament of dark matter between two clusters of galaxies

(2) KIPAC, (3) Dept. of Physics & Astronomy, (4) MPE, (5) Institute for Astronomy, (6) Department of Physics, Alexis Finoguenov (4), Aurora Simionescu (2) ((1) Physics Dept., Douglas Clowe (3), J\"org P. Dietrich (1), Lance Miller (6), Norbert Werner (2), Ohio University, Stanford, The University of Edinburgh, Tom Kitching (5), University of Michigan, University of Oxford)

arxiv:1207.0809 v1 · 2012-07-03 · 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{4G7FRRRCKEH6FMPFZVNLELQ7PO}

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	2026-05-18T03:51:48.346270Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e1be58c622510fe2b1e5cd5ab22e1f7b9e37b0e8511e6ffab24701477717695d

Aliases

arxiv: 1207.0809 · arxiv_version: 1207.0809v1 · doi: 10.48550/arxiv.1207.0809 · pith_short_12: 4G7FRRRCKEH6 · pith_short_16: 4G7FRRRCKEH6FMPF · pith_short_8: 4G7FRRRC

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/4G7FRRRCKEH6FMPFZVNLELQ7PO \
  | 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: e1be58c622510fe2b1e5cd5ab22e1f7b9e37b0e8511e6ffab24701477717695d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "030970cf9f49b3d0e6eeaf2a1d0fa31c6223543178707cc1ffdfabab43290b94",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2012-07-03T20:00:00Z",
    "title_canon_sha256": "e1b0055cb533b58f1bd7c29fef4c0ca983166504cef21440221ac65f8dbfdeca"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1207.0809",
    "kind": "arxiv",
    "version": 1
  }
}