Pith Number

pith:UYXRVLSA

pith:2010:UYXRVLSAKTTANAF53D3BRDZZNY

not attested not anchored not stored refs pending

Inequivalent contact structures on Boothby-Wang 5-manifolds

M. J. D. Hamilton

arxiv:1001.1953 v2 · 2010-01-12 · math.SG · math.GT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UYXRVLSAKTTANAF53D3BRDZZNY}

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	2026-05-18T03:18:18.925816Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a62f1aae4054e60680bdd8f6188f396e2e483bff883d84dd2211ad5c06057789

Aliases

arxiv: 1001.1953 · arxiv_version: 1001.1953v2 · doi: 10.48550/arxiv.1001.1953 · pith_short_12: UYXRVLSAKTTA · pith_short_16: UYXRVLSAKTTANAF5 · pith_short_8: UYXRVLSA

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/UYXRVLSAKTTANAF53D3BRDZZNY \
  | 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: a62f1aae4054e60680bdd8f6188f396e2e483bff883d84dd2211ad5c06057789

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cdfc7e95c291a818d010ce020b3513d17827b2b7a85431ec904f6657a214058a",
    "cross_cats_sorted": [
      "math.GT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.SG",
    "submitted_at": "2010-01-12T17:18:45Z",
    "title_canon_sha256": "8ac3a1f9e724c591cd668f4564b058aa85ffc5a3d3b717a6008a7a4c0394dec3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1001.1953",
    "kind": "arxiv",
    "version": 2
  }
}