Pith Number

pith:XHQRLXYS

pith:2015:XHQRLXYSFB6SRCFBDT4CZGRXIP

not attested not anchored not stored refs pending

The initial conditions of observed star clusters - I. Method description and validation

2), (2) Leiden Observatory, (3) Institute of Astronomy, (4) Department of Physics, (5) TNO Defence, B. Devecchi (5) ((1) Department of Astrophysics/IMAPP, J.T. Pijloo (1, Leiden University, M. Gieles (4), P.E.R. Alexander (3), P.J. Groot (1), Radboud University, Safety), Security, S.F. Portegies Zwart (2), S.S. Larsen (1), University of Cambridge, University of Surrey

arxiv:1507.04372 v1 · 2015-07-15 · astro-ph.SR · 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{XHQRLXYSFB6SRCFBDT4CZGRXIP}

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	2026-05-18T01:34:47.653256Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b9e115df12287d2888a11cf82c9a3743d008993d20174e38fec317153218e716

Aliases

arxiv: 1507.04372 · arxiv_version: 1507.04372v1 · doi: 10.48550/arxiv.1507.04372 · pith_short_12: XHQRLXYSFB6S · pith_short_16: XHQRLXYSFB6SRCFB · pith_short_8: XHQRLXYS

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/XHQRLXYSFB6SRCFBDT4CZGRXIP \
  | 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: b9e115df12287d2888a11cf82c9a3743d008993d20174e38fec317153218e716

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5d2b1d72b968bec6cad469c9dbbd10efd799df8fbf2e61f3f88ac675267dafd7",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2015-07-15T20:09:29Z",
    "title_canon_sha256": "46b3c11d68548297ff9b553e7bbf1fdf827551827b84f30784eee312c6559687"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1507.04372",
    "kind": "arxiv",
    "version": 1
  }
}