Pith Number

pith:DMCZL5TX

pith:2009:DMCZL5TXSB2WCNLF5LKEQFMFYF

not attested not anchored not stored refs pending

Smooth (non)rigidity of cusp-decomposable manifolds

T. Tam Nguyen Phan

arxiv:0907.3755 v3 · 2009-07-22 · 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{DMCZL5TXSB2WCNLF5LKEQFMFYF}

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	2026-05-18T04:10:48.457550Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1b0595f6779075613565ead4481585c154ff8f9003979ae1d657e69e720b0798

Aliases

arxiv: 0907.3755 · arxiv_version: 0907.3755v3 · doi: 10.48550/arxiv.0907.3755 · pith_short_12: DMCZL5TXSB2W · pith_short_16: DMCZL5TXSB2WCNLF · pith_short_8: DMCZL5TX

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/DMCZL5TXSB2WCNLF5LKEQFMFYF \
  | 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: 1b0595f6779075613565ead4481585c154ff8f9003979ae1d657e69e720b0798

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "23fcb534c255ed0a64935b7d626eac02cce6c893212376883cca2a76be81022a",
    "cross_cats_sorted": [
      "math.DG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GT",
    "submitted_at": "2009-07-22T00:55:42Z",
    "title_canon_sha256": "ce9cbfb5ff88a0c77f1bb435960e48c20db215e44e1c4f6e14a5c3bfb70eeb24"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0907.3755",
    "kind": "arxiv",
    "version": 3
  }
}