Pith Number

pith:XGGCOV6Z

pith:2016:XGGCOV6ZMAK4SJWM3LNBCFNWJE

not attested not anchored not stored refs pending

The Rigidity Conjecture

Bj\"orn Winckler, Liviana Palmisano, Marco Martens

arxiv:1612.08939 v2 · 2016-12-28 · 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{XGGCOV6ZMAK4SJWM3LNBCFNWJE}

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	2026-05-18T00:16:56.657993Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b98c2757d96015c926ccdada1115b6492f7d057612553818d9d91105f3997d89

Aliases

arxiv: 1612.08939 · arxiv_version: 1612.08939v2 · doi: 10.48550/arxiv.1612.08939 · pith_short_12: XGGCOV6ZMAK4 · pith_short_16: XGGCOV6ZMAK4SJWM · pith_short_8: XGGCOV6Z

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/XGGCOV6ZMAK4SJWM3LNBCFNWJE \
  | 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: b98c2757d96015c926ccdada1115b6492f7d057612553818d9d91105f3997d89

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2134390d98035bf87b99b728d9e1f009d258c3f5b206ca91bd85c2fc90b7a1a8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DS",
    "submitted_at": "2016-12-28T17:55:51Z",
    "title_canon_sha256": "4d60e291dfb26f8a2187312e34a04cdef7ad136784782876665225bb971e5f9a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1612.08939",
    "kind": "arxiv",
    "version": 2
  }
}