Pith Number

pith:VIKC53TU

pith:2013:VIKC53TUEENN72USFQFHHZUJLM

not attested not anchored not stored refs pending

Using the Big Ideas in Cosmology to Teach College Students

Anne J. Metevier, Janelle M. Bailey, Kevin M. McLin, Kimberly Coble, Lynn R. Cominsky

arxiv:1303.1768 v1 · 2013-03-07 · physics.ed-ph · astro-ph.IM · physics.pop-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{VIKC53TUEENN72USFQFHHZUJLM}

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	2026-05-18T03:31:33.161298Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

aa142eee74211adfea922c0a73e6895b2db686902e3cbd345e752462a0e142d1

Aliases

arxiv: 1303.1768 · arxiv_version: 1303.1768v1 · doi: 10.48550/arxiv.1303.1768 · pith_short_12: VIKC53TUEENN · pith_short_16: VIKC53TUEENN72US · pith_short_8: VIKC53TU

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/VIKC53TUEENN72USFQFHHZUJLM \
  | 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: aa142eee74211adfea922c0a73e6895b2db686902e3cbd345e752462a0e142d1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "004d548494a1de323282e5cad76bc8f44a8af969ef3831cf75d69fc8cb954a36",
    "cross_cats_sorted": [
      "astro-ph.IM",
      "physics.pop-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.ed-ph",
    "submitted_at": "2013-03-07T17:56:01Z",
    "title_canon_sha256": "8c3a1b515144ecc4b26b7ff68614b644f7a7b089e443eb57e3e940094baaf1c9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1303.1768",
    "kind": "arxiv",
    "version": 1
  }
}