Pith Number

pith:Y4FUIYFP

pith:2009:Y4FUIYFPSQZNBSAP7IXLMIOQUE

not attested not anchored not stored refs pending

On the triple origin of blue stragglers

Daniel C. Fabrycky, Hagai B. Perets

arxiv:0901.4328 v3 · 2009-01-27 · 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{Y4FUIYFPSQZNBSAP7IXLMIOQUE}

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	2026-05-18T04:29:17.110063Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c70b4460af9432d0c80ffa2eb621d0a1017ac350e8e9dc947918da5874a6ec64

Aliases

arxiv: 0901.4328 · arxiv_version: 0901.4328v3 · doi: 10.48550/arxiv.0901.4328 · pith_short_12: Y4FUIYFPSQZN · pith_short_16: Y4FUIYFPSQZNBSAP · pith_short_8: Y4FUIYFP

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/Y4FUIYFPSQZNBSAP7IXLMIOQUE \
  | 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: c70b4460af9432d0c80ffa2eb621d0a1017ac350e8e9dc947918da5874a6ec64

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "db201bc4c38fed3ad82fb494cfd5872d3d8388714bb873de1fa929b1a17bb531",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2009-01-27T20:29:58Z",
    "title_canon_sha256": "2a78c1c8fee91272719f11b62c50cadfb0a19efaa0ebbb45ffc8b8b222e867b2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0901.4328",
    "kind": "arxiv",
    "version": 3
  }
}