Pith Number

pith:LDNNVCF4

pith:2010:LDNNVCF46S5UEKULOW7QJ7SMO3

not attested not anchored not stored refs pending

Lens Inquiry: An Astronomy Lab for Non-science Majors at Hartnell Community College

David K. Lai, Elizabeth J. McGrath, Judy Y. Cheng, Nicole M. Putnam, Pimol Moth

arxiv:1010.3266 v1 · 2010-10-15 · physics.ed-ph · astro-ph.IM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{LDNNVCF46S5UEKULOW7QJ7SMO3}

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	2026-05-18T04:39:09.692456Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

58dada88bcf4bb422a8b75bf04fe4c76c1e4412e85df8903a7f08de27b2314f4

Aliases

arxiv: 1010.3266 · arxiv_version: 1010.3266v1 · doi: 10.48550/arxiv.1010.3266 · pith_short_12: LDNNVCF46S5U · pith_short_16: LDNNVCF46S5UEKUL · pith_short_8: LDNNVCF4

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/LDNNVCF46S5UEKULOW7QJ7SMO3 \
  | 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: 58dada88bcf4bb422a8b75bf04fe4c76c1e4412e85df8903a7f08de27b2314f4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "25283fd41d9c9e2c56f070b070590c4c14490d19af8338c19db33544c1af5950",
    "cross_cats_sorted": [
      "astro-ph.IM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.ed-ph",
    "submitted_at": "2010-10-15T20:18:17Z",
    "title_canon_sha256": "1e604e3fa28c09a55ce45c036446960f16984788cdf3c938fe6193c977ca0812"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1010.3266",
    "kind": "arxiv",
    "version": 1
  }
}