Pith Number

pith:EPIYYNW3

pith:2011:EPIYYNW3V2ZTEB554ZGDU4XGB4

not attested not anchored not stored refs pending

Almost contact metric 5-manifolds and connections with torsion

Christof Puhle

arxiv:1110.3585 v1 · 2011-10-17 · 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{EPIYYNW3V2ZTEB554ZGDU4XGB4}

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	2026-05-18T03:41:02.505092Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

23d18c36dbaeb33207bde64c3a72e60f2e34f8b818dff2b72aa47040392a75f5

Aliases

arxiv: 1110.3585 · arxiv_version: 1110.3585v1 · doi: 10.48550/arxiv.1110.3585 · pith_short_12: EPIYYNW3V2ZT · pith_short_16: EPIYYNW3V2ZTEB55 · pith_short_8: EPIYYNW3

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/EPIYYNW3V2ZTEB554ZGDU4XGB4 \
  | 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: 23d18c36dbaeb33207bde64c3a72e60f2e34f8b818dff2b72aa47040392a75f5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2a2b20baa380d91f446d4c978bb40162da2bfbd2a2fcc5d53aeae0d8a598b6fe",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2011-10-17T07:01:00Z",
    "title_canon_sha256": "533dcca3bea4932dd2721a3d58b108c37bf22e317ea8f6a1afe15d6ab49f1128"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1110.3585",
    "kind": "arxiv",
    "version": 1
  }
}