Pith Number

pith:VP7W5BID

pith:2011:VP7W5BIDPVEMYFYR7VPJBZTHWN

not attested not anchored not stored refs pending

The first confirmed microlens in a globular cluster

A. Udalski, D. Minniti, J. Alonso-Garcia, Ph. Jetzer, P. Pietrukowicz

arxiv:1112.0562 v2 · 2011-12-02 · astro-ph.GA · astro-ph.SR

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VP7W5BIDPVEMYFYR7VPJBZTHWN}

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	2026-05-18T01:59:17.684491Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

abff6e85037d48cc1711fd5e90e667b35e6985ad064e1613525fa96bbaa52b12

Aliases

arxiv: 1112.0562 · arxiv_version: 1112.0562v2 · doi: 10.48550/arxiv.1112.0562 · pith_short_12: VP7W5BIDPVEM · pith_short_16: VP7W5BIDPVEMYFYR · pith_short_8: VP7W5BID

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/VP7W5BIDPVEMYFYR7VPJBZTHWN \
  | 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: abff6e85037d48cc1711fd5e90e667b35e6985ad064e1613525fa96bbaa52b12

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d2211741a8911a26b78a37998fdc44d24333fd9111a096cd65c260064adf3447",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2011-12-02T20:59:58Z",
    "title_canon_sha256": "ab858437cdae90a8c75c03c5f7f61f46be7c46b7272c53fd5323c660e44b7211"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1112.0562",
    "kind": "arxiv",
    "version": 2
  }
}