Pith Number

pith:H3VB6UHL

pith:2013:H3VB6UHLXXXIRCFIE7PWCFNLZP

not attested not anchored not stored refs pending

Efficient traveltime solution of the acoustic TI eikonal equation

Hui Wang, Tariq Alkhalifah, Umair Bin Waheed

arxiv:1311.4203 v1 · 2013-11-17 · physics.geo-ph · math.NA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{H3VB6UHLXXXIRCFIE7PWCFNLZP}

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	2026-05-18T03:06:53.315340Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3eea1f50ebbdee8888a827df6115abcbc3c73a6190f98a1fb3e2296070eedf0b

Aliases

arxiv: 1311.4203 · arxiv_version: 1311.4203v1 · doi: 10.48550/arxiv.1311.4203 · pith_short_12: H3VB6UHLXXXI · pith_short_16: H3VB6UHLXXXIRCFI · pith_short_8: H3VB6UHL

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/H3VB6UHLXXXIRCFIE7PWCFNLZP \
  | 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: 3eea1f50ebbdee8888a827df6115abcbc3c73a6190f98a1fb3e2296070eedf0b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e93d4243221f30c6b098fee2b4daef09a8608954068d2e5ef2026a28e4efb93c",
    "cross_cats_sorted": [
      "math.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.geo-ph",
    "submitted_at": "2013-11-17T19:14:16Z",
    "title_canon_sha256": "90f8405d95c893d4dea8d980ff4ea4f8e3934a44a8f3e6f56850cd47b851cffa"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1311.4203",
    "kind": "arxiv",
    "version": 1
  }
}