Pith Number

pith:U232BI4I

pith:2015:U232BI4I7JQD7HAVHETGJEL24D

not attested not anchored not stored refs pending

Astronomy Job Crisis

(2) Arizona, (3) ESO/Chile, (4) Penn State), Alexandra Abate (2), Asantha Cooray (1), Boris H\"au{\ss}ler (3), Christina C. Williams (2) ((1) UC Irvine, Jonathan R. Trump (4)

arxiv:1512.02223 v1 · 2015-12-07 · astro-ph.IM · physics.soc-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{U232BI4I7JQD7HAVHETGJEL24D}

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	2026-05-18T01:24:45.188196Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a6b7a0a388fa603f9c15392664917ae0cb5268056bfad6707fdadc4c23040dde

Aliases

arxiv: 1512.02223 · arxiv_version: 1512.02223v1 · doi: 10.48550/arxiv.1512.02223 · pith_short_12: U232BI4I7JQD · pith_short_16: U232BI4I7JQD7HAV · pith_short_8: U232BI4I

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/U232BI4I7JQD7HAVHETGJEL24D \
  | 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: a6b7a0a388fa603f9c15392664917ae0cb5268056bfad6707fdadc4c23040dde

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7c0161a1e03d0d47969940e52787170b1d8f7ed9b879cfa561cc71934d542d5f",
    "cross_cats_sorted": [
      "physics.soc-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2015-12-07T21:00:04Z",
    "title_canon_sha256": "aee8c82f335ac35c6704431ba8d4bf1f3178c00c71903698072e398a0e03606a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1512.02223",
    "kind": "arxiv",
    "version": 1
  }
}