Pith Number

pith:T3DXWVPX

pith:2013:T3DXWVPXPGSLJZJKKIFRGDHPW2

not attested not anchored not stored refs pending

The Glassey conjecture for nontrapping obstacles

Chengbo Wang

arxiv:1312.7433 v3 · 2013-12-28 · math.AP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{T3DXWVPXPGSLJZJKKIFRGDHPW2}

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	2026-05-18T02:27:18.926106Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9ec77b55f779a4b4e52a520b130cefb68f85aface941b43a17f3789e9f35d080

Aliases

arxiv: 1312.7433 · arxiv_version: 1312.7433v3 · doi: 10.48550/arxiv.1312.7433 · pith_short_12: T3DXWVPXPGSL · pith_short_16: T3DXWVPXPGSLJZJK · pith_short_8: T3DXWVPX

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/T3DXWVPXPGSLJZJKKIFRGDHPW2 \
  | 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: 9ec77b55f779a4b4e52a520b130cefb68f85aface941b43a17f3789e9f35d080

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "459d538c4d5b008f18e5cd177ec1f254d79fe3bdbd1adcd4cd9dcfd314745cfe",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2013-12-28T13:46:56Z",
    "title_canon_sha256": "2102ae32072bfaae1f31b68a2fc57546b04b755f2deba6905f8c67598af7515e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1312.7433",
    "kind": "arxiv",
    "version": 3
  }
}