Pith Number

pith:ICDMWXE4

pith:2011:ICDMWXE4YY5PG34H33EKLGMZ7G

not attested not anchored not stored refs pending

On the curvature of metric contact pairs

A. Hadjar, D.E. Blair, G. Bande

arxiv:1110.6278 v1 · 2011-10-28 · 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{ICDMWXE4YY5PG34H33EKLGMZ7G}

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	2026-05-18T04:09:57.211308Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4086cb5c9cc63af36f87dec8a59999f9bf626b11c9d8bef5468e4f26690aaf0c

Aliases

arxiv: 1110.6278 · arxiv_version: 1110.6278v1 · doi: 10.48550/arxiv.1110.6278 · pith_short_12: ICDMWXE4YY5P · pith_short_16: ICDMWXE4YY5PG34H · pith_short_8: ICDMWXE4

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/ICDMWXE4YY5PG34H33EKLGMZ7G \
  | 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: 4086cb5c9cc63af36f87dec8a59999f9bf626b11c9d8bef5468e4f26690aaf0c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bdf16246047aeb2611dd64ec8e86f556f6b558047cbee350df514a818bf6a063",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2011-10-28T08:56:43Z",
    "title_canon_sha256": "04251f6e5516fb9f218dcd691904de7fb5ffd9f32995120298072e6a0e063047"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1110.6278",
    "kind": "arxiv",
    "version": 1
  }
}