Pith Number

pith:AFLEPIZ3

pith:2013:AFLEPIZ3QWBIS4E72CT3MSYMZS

not attested not anchored not stored refs pending

New $ubvri$ photometry of 234 M33 star clusters

2) ((1) National Astronomical Observatories, (2) Key Laboratory of Optical Astronomy, China), Chinese Academy of Sciences, Jun Ma (1, National Astronomical Observatories

arxiv:1301.1086 v1 · 2013-01-07 · astro-ph.GA · 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{AFLEPIZ3QWBIS4E72CT3MSYMZS}

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	2026-05-18T01:52:21.220732Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

015647a33b858289709fd0a7b64b0ccc8ccf2b200b6947265e4217a936624327

Aliases

arxiv: 1301.1086 · arxiv_version: 1301.1086v1 · doi: 10.48550/arxiv.1301.1086 · pith_short_12: AFLEPIZ3QWBI · pith_short_16: AFLEPIZ3QWBIS4E7 · pith_short_8: AFLEPIZ3

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/AFLEPIZ3QWBIS4E72CT3MSYMZS \
  | 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: 015647a33b858289709fd0a7b64b0ccc8ccf2b200b6947265e4217a936624327

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ab7246ce6d537923eea1934300a5864f6d302acab2a4141cb37715d2c77a6b74",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-sa/3.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2013-01-07T01:11:35Z",
    "title_canon_sha256": "34a3fda3a2aa384b77681c834b4eb3b615deca1290e868b2d7d69d4cbc04821e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1301.1086",
    "kind": "arxiv",
    "version": 1
  }
}