Pith Number

pith:SF3OSWRU

pith:2012:SF3OSWRU6CAHGAKCDTCXKRNBHN

not attested not anchored not stored refs pending

The Planeterrella experiment: from individual initiative to networking

Asgeir Brekke, Cyril Simon Wedlund, Erwin Fluckiger, Gabrielle Provan, Jean Lilensten, Mathieu Barth\'el\'emy, Petra Vanlommel, Philippe Garnier, Sandrine Grimald

arxiv:1207.1866 v1 · 2012-07-08 · physics.ed-ph · astro-ph.EP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SF3OSWRU6CAHGAKCDTCXKRNBHN}

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	2026-05-18T03:10:12.235431Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9176e95a34f0807301421cc57545a13b4da98644a39a4c70880630fc47325b08

Aliases

arxiv: 1207.1866 · arxiv_version: 1207.1866v1 · doi: 10.48550/arxiv.1207.1866 · pith_short_12: SF3OSWRU6CAH · pith_short_16: SF3OSWRU6CAHGAKC · pith_short_8: SF3OSWRU

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/SF3OSWRU6CAHGAKCDTCXKRNBHN \
  | 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: 9176e95a34f0807301421cc57545a13b4da98644a39a4c70880630fc47325b08

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "aa143765bf4d4b3cd24ed3bef971d8b42fa8dbfbb38349f4fc740ba01d7fea3b",
    "cross_cats_sorted": [
      "astro-ph.EP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.ed-ph",
    "submitted_at": "2012-07-08T12:26:29Z",
    "title_canon_sha256": "fa4b24a110ae6ee5c3e559588d308538532a1b6eae19a50c964796b92c0d73c0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1207.1866",
    "kind": "arxiv",
    "version": 1
  }
}