Pith Number

pith:ZY44C6FL

pith:2014:ZY44C6FLAMK2YRK6TVHWKOD2EP

not attested not anchored not stored refs pending

Singular multicontact structures

Alessandro Ottazzi, Gerd Schmalz

arxiv:1409.2229 v1 · 2014-09-08 · math.DG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZY44C6FLAMK2YRK6TVHWKOD2EP}

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	2026-05-18T02:43:17.548544Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ce39c178ab0315ac455e9d4f65387a23d37b1b11dd0eaefd4effcc69c07115ce

Aliases

arxiv: 1409.2229 · arxiv_version: 1409.2229v1 · doi: 10.48550/arxiv.1409.2229 · pith_short_12: ZY44C6FLAMK2 · pith_short_16: ZY44C6FLAMK2YRK6 · pith_short_8: ZY44C6FL

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/ZY44C6FLAMK2YRK6TVHWKOD2EP \
  | 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: ce39c178ab0315ac455e9d4f65387a23d37b1b11dd0eaefd4effcc69c07115ce

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e7018b2bdeb5ebcd7b73ff0e6c82f1f65721b56a34eb3d00e045b5cee5a02b6c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2014-09-08T07:47:11Z",
    "title_canon_sha256": "0216b72cc5d23d5a07f2a1ba2736c1c17009abda7237f86a59f225c9024d253f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1409.2229",
    "kind": "arxiv",
    "version": 1
  }
}