Pith Number

pith:42Y7ODHF

pith:2007:42Y7ODHFVPQW6IC6XM4CFDY65N

not attested not anchored not stored refs pending

Rigidity of polyhedral surfaces, II

Feng Luo, Ren Guo

arxiv:0711.0766 v1 · 2007-11-05 · math.GT · 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{42Y7ODHFVPQW6IC6XM4CFDY65N}

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	2026-05-18T02:38:19.328743Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e6b1f70ce5abe16f205ebb38228f1eeb67420bf2579a7defb3c23ae0f4e89a62

Aliases

arxiv: 0711.0766 · arxiv_version: 0711.0766v1 · doi: 10.48550/arxiv.0711.0766 · pith_short_12: 42Y7ODHFVPQW · pith_short_16: 42Y7ODHFVPQW6IC6 · pith_short_8: 42Y7ODHF

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/42Y7ODHFVPQW6IC6XM4CFDY65N \
  | 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: e6b1f70ce5abe16f205ebb38228f1eeb67420bf2579a7defb3c23ae0f4e89a62

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1b049cd7a6bf686605fbd1b2e41b2f5f588d29feff10738bd32dca0e491f9b4f",
    "cross_cats_sorted": [
      "math.DG"
    ],
    "license": "",
    "primary_cat": "math.GT",
    "submitted_at": "2007-11-05T21:47:10Z",
    "title_canon_sha256": "aebe05d5a63718f629afea5533d6e8586d5ed703566420f61e9c52e68817f64c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0711.0766",
    "kind": "arxiv",
    "version": 1
  }
}