Pith Number

pith:4RBPYQLP

pith:2015:4RBPYQLPGTD5NU3LCBD5TE6VBF

not attested not anchored not stored refs pending

The mass accretion rate of galaxy clusters: a measurable quantity

Ana Laura Serra, Antonaldo Diaferio, Carlo Giocoli, Cristiano De Boni, Marco Baldi

arxiv:1501.01977 v4 · 2015-01-08 · 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{4RBPYQLPGTD5NU3LCBD5TE6VBF}

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	2026-05-18T01:18:54.454627Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e442fc416f34c7d6d36b1047d993d5095ed702e18eed20b074d6811fa1652ad3

Aliases

arxiv: 1501.01977 · arxiv_version: 1501.01977v4 · doi: 10.48550/arxiv.1501.01977 · pith_short_12: 4RBPYQLPGTD5 · pith_short_16: 4RBPYQLPGTD5NU3L · pith_short_8: 4RBPYQLP

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/4RBPYQLPGTD5NU3LCBD5TE6VBF \
  | 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: e442fc416f34c7d6d36b1047d993d5095ed702e18eed20b074d6811fa1652ad3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "afc027d2f77f3867c27ae34b2691fbaae16941be6d65f874039e8993b8e238a0",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2015-01-08T21:00:33Z",
    "title_canon_sha256": "71b63582a4ae7e8ed942c747df92dca728d1657deb23451d8fd7e5285ae102fd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1501.01977",
    "kind": "arxiv",
    "version": 4
  }
}