Pith Number

pith:I3QY7AOS

pith:2013:I3QY7AOSJNXYOJCV4Q6RHKMUAP

not attested not anchored not stored refs pending

A new method to measure the mass of galaxy clusters

Copenhagen, Denmark), Martina Falco (1), Mikkel Lindholmer (1), Niels Bohr Institute, Radoslaw Wojtak (1), Steen H. Hansen (1), Stefania Pandolfi (1) ((1) Dark Cosmology Centre, Thejs Brinckmann (1)

arxiv:1309.2950 v1 · 2013-09-11 · 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{I3QY7AOSJNXYOJCV4Q6RHKMUAP}

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	2026-05-18T01:47:43.040440Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

46e18f81d24b6f872455e43d13a99403ce85a5080cfa704581fe434bfbbb643b

Aliases

arxiv: 1309.2950 · arxiv_version: 1309.2950v1 · doi: 10.48550/arxiv.1309.2950 · pith_short_12: I3QY7AOSJNXY · pith_short_16: I3QY7AOSJNXYOJCV · pith_short_8: I3QY7AOS

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/I3QY7AOSJNXYOJCV4Q6RHKMUAP \
  | 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: 46e18f81d24b6f872455e43d13a99403ce85a5080cfa704581fe434bfbbb643b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e194ed68c482bbb6ff1dbff330e88b717449ec798aad09d94770437754dbad1a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2013-09-11T20:00:09Z",
    "title_canon_sha256": "92ab8bf76aa1f9a43c930b517d0da17fac8b4e2c94726cd44ca2575e745205d3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1309.2950",
    "kind": "arxiv",
    "version": 1
  }
}