Pith Number

pith:YOYCIYPA

pith:2011:YOYCIYPAASBJIWYZPDNEDJYM6S

not attested not anchored not stored refs pending

Gravitational-wave Science in the High School Classroom

Benjamin Farr, GionMatthias Schelbert, Laura Trouille

arxiv:1109.3720 v3 · 2011-09-16 · physics.ed-ph · gr-qc

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{YOYCIYPAASBJIWYZPDNEDJYM6S}

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	2026-05-18T02:41:24.994445Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c3b02461e00482945b1978da41a70cf4ad638d15e9258f6f7ad305b5a23ff4a9

Aliases

arxiv: 1109.3720 · arxiv_version: 1109.3720v3 · doi: 10.48550/arxiv.1109.3720 · pith_short_12: YOYCIYPAASBJ · pith_short_16: YOYCIYPAASBJIWYZ · pith_short_8: YOYCIYPA

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/YOYCIYPAASBJIWYZPDNEDJYM6S \
  | 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: c3b02461e00482945b1978da41a70cf4ad638d15e9258f6f7ad305b5a23ff4a9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9c8f757f46306b8b074537408a58e2335f3e077eb54bcf3536f7b968e45a16d0",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.ed-ph",
    "submitted_at": "2011-09-16T20:16:51Z",
    "title_canon_sha256": "9e14249cabcf07694b14c2f429cbaf792614104399fee49e8011d6b2c5e58686"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1109.3720",
    "kind": "arxiv",
    "version": 3
  }
}