Pith Number

pith:VZ2P5PA2

pith:2015:VZ2P5PA2IVOGM2HJPTJK5XOTWW

not attested not anchored not stored refs pending

New Constraints on the Star Formation History of the Star Cluster NGC 1856

(2) P. Univ. Catolica de Chile, (3) Univ. of Amsterdam), Matteo Correnti (1), Paul Goudfrooij (1), Selma E. de Mink (3) ((1) STScI, Thomas H. Puzia (2)

arxiv:1504.03299 v1 · 2015-04-13 · 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{VZ2P5PA2IVOGM2HJPTJK5XOTWW}

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	2026-05-18T02:03:32.876837Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ae74febc1a455c6668e97cd2aeddd3b5a1a8009967187b03a6afef5e6a989e50

Aliases

arxiv: 1504.03299 · arxiv_version: 1504.03299v1 · doi: 10.48550/arxiv.1504.03299 · pith_short_12: VZ2P5PA2IVOG · pith_short_16: VZ2P5PA2IVOGM2HJ · pith_short_8: VZ2P5PA2

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/VZ2P5PA2IVOGM2HJPTJK5XOTWW \
  | 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: ae74febc1a455c6668e97cd2aeddd3b5a1a8009967187b03a6afef5e6a989e50

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0dc8a5f5dc02975ffa03043f6dec89505d93a372623b5a1706e1b00f63a2c02a",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2015-04-13T18:59:19Z",
    "title_canon_sha256": "e48c2ff5ff663cc0101061814a2b5fd1f3deeac74a8725dd81d0835e2c7e48a8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.03299",
    "kind": "arxiv",
    "version": 1
  }
}