Pith Number

pith:GAQRXDWH

pith:2013:GAQRXDWH6V7URN5ATKXFHJTVGU

not attested not anchored not stored refs pending

Reconstruction of the wave speed from transmission eigenvalues for the spherically-symmetric variable-speed wave equation

Tuncay Aktosun, Vassilis G. Papanicolaou

arxiv:1304.5819 v1 · 2013-04-22 · math.SP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{GAQRXDWH6V7URN5ATKXFHJTVGU}

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	2026-05-18T00:15:38.393905Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

30211b8ec7f57f48b7a09aae53a6753525fb723adcfc88c7760388bb4c368a82

Aliases

arxiv: 1304.5819 · arxiv_version: 1304.5819v1 · doi: 10.48550/arxiv.1304.5819 · pith_short_12: GAQRXDWH6V7U · pith_short_16: GAQRXDWH6V7URN5A · pith_short_8: GAQRXDWH

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/GAQRXDWH6V7URN5ATKXFHJTVGU \
  | 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: 30211b8ec7f57f48b7a09aae53a6753525fb723adcfc88c7760388bb4c368a82

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a6aa752327459d4645de94f90182447911347d7eae57ade713f0078b7a62f974",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.SP",
    "submitted_at": "2013-04-22T01:12:41Z",
    "title_canon_sha256": "5691bae427ad5e90dc7ba836f21895d50a64d660e5f09ca01d2988e3a33e42d8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1304.5819",
    "kind": "arxiv",
    "version": 1
  }
}