Pith Number

pith:735DCMUH

pith:2016:735DCMUHD6VXPRDTFVMGW34ADR

not attested not anchored not stored refs pending

Two constructions of virtually contact structures

Kai Zehmisch, Kevin Wiegand

arxiv:1610.06201 v3 · 2016-10-19 · math.SG · math.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{735DCMUHD6VXPRDTFVMGW34ADR}

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	2026-05-17T23:51:44.610395Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fefa3132871fab77c4732d586b6f801c4a59094f59d8bf07e77e010148e57a6c

Aliases

arxiv: 1610.06201 · arxiv_version: 1610.06201v3 · doi: 10.48550/arxiv.1610.06201 · pith_short_12: 735DCMUHD6VX · pith_short_16: 735DCMUHD6VXPRDT · pith_short_8: 735DCMUH

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/735DCMUHD6VXPRDTFVMGW34ADR \
  | 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: fefa3132871fab77c4732d586b6f801c4a59094f59d8bf07e77e010148e57a6c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "35ff83f821fec6229f6d08fafea6935756571707720a4b6d439b48c044bbbaeb",
    "cross_cats_sorted": [
      "math.DS"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.SG",
    "submitted_at": "2016-10-19T20:23:30Z",
    "title_canon_sha256": "d30e527eddf7574b9812f48a938bcf293cab7ab6907f2fa4c94c4abb66729b1a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1610.06201",
    "kind": "arxiv",
    "version": 3
  }
}