Pith Number

pith:AU3FBPPH

pith:2011:AU3FBPPHIDLSYXOH5626CJCOJR

not attested not anchored not stored refs pending

"Eppur si muove", Software Libero e Ricerca Riproducibile

Alessandro Frigeri, Gisella Speranza

arxiv:1105.1885 v1 · 2011-05-10 · cs.CY

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{AU3FBPPHIDLSYXOH5626CJCOJR}

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	2026-05-18T04:22:30.356520Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

053650bde740d72c5dc7efb5e1244e4c501bdb4d48a20e386145d1d15072a02b

Aliases

arxiv: 1105.1885 · arxiv_version: 1105.1885v1 · doi: 10.48550/arxiv.1105.1885 · pith_short_12: AU3FBPPHIDLS · pith_short_16: AU3FBPPHIDLSYXOH · pith_short_8: AU3FBPPH

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/AU3FBPPHIDLSYXOH5626CJCOJR \
  | 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: 053650bde740d72c5dc7efb5e1244e4c501bdb4d48a20e386145d1d15072a02b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3acfa4f17fa9049fca42dbed15f869373a306a4b5acc8cc81e67c5194a183b71",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CY",
    "submitted_at": "2011-05-10T09:01:55Z",
    "title_canon_sha256": "b9b58a23843b065941ec32561f200d193e6796d4e5207faf4d014be33f6d8980"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1105.1885",
    "kind": "arxiv",
    "version": 1
  }
}