Pith Number

pith:3SHFXK5D

pith:2009:3SHFXK5DLCILZKVQR5SVMZLQHI

not attested not anchored not stored refs pending

The Coevality of Young Binary Systems

Adam L. Kraus, Lynne A. Hillenbrand (Caltech)

arxiv:0909.0509 v1 · 2009-09-03 · 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{3SHFXK5DLCILZKVQR5SVMZLQHI}

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	2026-05-18T02:34:36.693581Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dc8e5baba35890bcaab08f655665703a35bba78c1675206003d13f3b2787ce98

Aliases

arxiv: 0909.0509 · arxiv_version: 0909.0509v1 · doi: 10.48550/arxiv.0909.0509 · pith_short_12: 3SHFXK5DLCIL · pith_short_16: 3SHFXK5DLCILZKVQ · pith_short_8: 3SHFXK5D

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/3SHFXK5DLCILZKVQR5SVMZLQHI \
  | 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: dc8e5baba35890bcaab08f655665703a35bba78c1675206003d13f3b2787ce98

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "64f53ac25d457574c36447fef048f73fbb8344758d82d9014e850c103d8e8b3f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2009-09-03T05:01:53Z",
    "title_canon_sha256": "f1a2acc54c964b187576c255085c64283bf16476bf8e760b3c91589e8650ca6c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0909.0509",
    "kind": "arxiv",
    "version": 1
  }
}