Pith Number

pith:J44CFVYU

pith:2013:J44CFVYU2GDE6A6WZL7WLJ3LYJ

not attested not anchored not stored refs pending

Stability of the determination of a coefficient for the wave equation in an infinite wave guide

Yavar Kian

arxiv:1305.4888 v1 · 2013-05-21 · 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{J44CFVYU2GDE6A6WZL7WLJ3LYJ}

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	2026-05-18T01:21:41.987618Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4f3822d714d1864f03d6caff65a76bc25069fec160af6ddeeb23983cabe61fac

Aliases

arxiv: 1305.4888 · arxiv_version: 1305.4888v1 · doi: 10.48550/arxiv.1305.4888 · pith_short_12: J44CFVYU2GDE · pith_short_16: J44CFVYU2GDE6A6W · pith_short_8: J44CFVYU

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/J44CFVYU2GDE6A6WZL7WLJ3LYJ \
  | 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: 4f3822d714d1864f03d6caff65a76bc25069fec160af6ddeeb23983cabe61fac

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7f5fc3ee06833de6191057b7a7d6251727b3bd0a0a43223769f9ae0199191dbc",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2013-05-21T17:15:11Z",
    "title_canon_sha256": "48f03f2f0201746a7ecce79742bb2d67ee50f26b4aa114d79143a35597881870"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1305.4888",
    "kind": "arxiv",
    "version": 1
  }
}