Pith Number

pith:WOJKM5J3

pith:2013:WOJKM5J3III63LCIBSOVHD5RWK

not attested not anchored not stored refs pending

UPMASK: unsupervised photometric membership assignment in stellar clusters

A. Krone-Martins, A. Moitinho

arxiv:1309.4471 v1 · 2013-09-17 · astro-ph.IM · 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{WOJKM5J3III63LCIBSOVHD5RWK}

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	2026-05-18T01:47:36.208342Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b392a6753b4211edac480c9d538fb1b29eba0e308765cb55844a4b5f19459658

Aliases

arxiv: 1309.4471 · arxiv_version: 1309.4471v1 · doi: 10.48550/arxiv.1309.4471 · pith_short_12: WOJKM5J3III6 · pith_short_16: WOJKM5J3III63LCI · pith_short_8: WOJKM5J3

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/WOJKM5J3III63LCIBSOVHD5RWK \
  | 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: b392a6753b4211edac480c9d538fb1b29eba0e308765cb55844a4b5f19459658

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "859f6f87d03de52f170142d6a3743e57822658d94e9202057a15c8f34055fbce",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2013-09-17T20:13:37Z",
    "title_canon_sha256": "8f5090efd80d10a6e46a3a923c737627d3f980902c256a6269df3b8b4331fd8e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1309.4471",
    "kind": "arxiv",
    "version": 1
  }
}