Pith Number

pith:CNDGQ6LF

pith:2012:CNDGQ6LFBN63CISWBF556OGQ2L

not attested not anchored not stored refs pending

Sensitivity Analysis of an Inverse Problem for the Wave Equation with Caustics

Gang Bao, Hai Zhang

arxiv:1211.6220 v2 · 2012-11-27 · 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{CNDGQ6LFBN63CISWBF556OGQ2L}

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	2026-05-18T03:03:21.227045Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

13466879650b7db12256097bdf38d0d2e43ab8e8d654ac01e10666a51de5daff

Aliases

arxiv: 1211.6220 · arxiv_version: 1211.6220v2 · doi: 10.48550/arxiv.1211.6220 · pith_short_12: CNDGQ6LFBN63 · pith_short_16: CNDGQ6LFBN63CISW · pith_short_8: CNDGQ6LF

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/CNDGQ6LFBN63CISWBF556OGQ2L \
  | 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: 13466879650b7db12256097bdf38d0d2e43ab8e8d654ac01e10666a51de5daff

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2460983b928afc4199705842f27747fbb4b46126285a37ca9eb8943beac6fa2b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2012-11-27T06:41:36Z",
    "title_canon_sha256": "c5f1e69a50247ec8b682a114b129ce25f1bd8a38add6aef2b2c61a0fab937a78"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1211.6220",
    "kind": "arxiv",
    "version": 2
  }
}