Pith Number

pith:LICGTHRG

pith:2001:LICGTHRGRJ6RNDIOBFJUJNLMH3

not attested not anchored not stored refs pending

Optical SETI: A Spectroscopic Search for Laser Emission from Nearby Stars

2) ((1) San Francisco State University Department of Physics, (2) University of California Berkeley Department of Astronomy), Amy E. Reines (1), Astronomy, Geoffrey W. Marcy (1

arxiv:astro-ph/0112479 v2 · 2001-12-20 · astro-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{LICGTHRGRJ6RNDIOBFJUJNLMH3}

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	2026-05-18T01:40:43.550474Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5a04699e268a7d168d0e095344b56c3efcc43e5d99eb88c9396c8daee954d39a

Aliases

arxiv: astro-ph/0112479 · arxiv_version: astro-ph/0112479v2 · doi: 10.48550/arxiv.astro-ph/0112479 · pith_short_12: LICGTHRGRJ6R · pith_short_16: LICGTHRGRJ6RNDIO · pith_short_8: LICGTHRG

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/LICGTHRGRJ6RNDIOBFJUJNLMH3 \
  | 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: 5a04699e268a7d168d0e095344b56c3efcc43e5d99eb88c9396c8daee954d39a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6ca8b293b9d8b07b56f59405858226ee4b9ec7b74c426b9dc17c09ccbbccfd82",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2001-12-20T13:32:07Z",
    "title_canon_sha256": "953842066e3c384fc6976f5480c6d092406f8fa9db8bbcdf4ae3c98be2cc92f6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0112479",
    "kind": "arxiv",
    "version": 2
  }
}