Pith Number

pith:WTBVBC5N

pith:2018:WTBVBC5NYKNWPUICO3KG7QXLC2

not attested not anchored not stored refs pending

Numerical solution of boundary value problems for the eikonal equation in an anisotropic medium

Alexander G. Churbanov, Petr N. Vabishchevich

arxiv:1802.06203 v1 · 2018-02-17 · cs.NA · 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{WTBVBC5NYKNWPUICO3KG7QXLC2}

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	2026-05-18T00:23:04.088234Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b4c3508badc29b67d10276d46fc2eb16bcfa389568486211b675e9d633b01ed4

Aliases

arxiv: 1802.06203 · arxiv_version: 1802.06203v1 · doi: 10.48550/arxiv.1802.06203 · pith_short_12: WTBVBC5NYKNW · pith_short_16: WTBVBC5NYKNWPUIC · pith_short_8: WTBVBC5N

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/WTBVBC5NYKNWPUICO3KG7QXLC2 \
  | 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: b4c3508badc29b67d10276d46fc2eb16bcfa389568486211b675e9d633b01ed4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "853c7e24dc667bcaeac72485667fd2920244668566c757610eafea6cbbe6c65f",
    "cross_cats_sorted": [
      "math.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.NA",
    "submitted_at": "2018-02-17T07:37:34Z",
    "title_canon_sha256": "4d179698d662462028a02d6da169787ba4d97fe24a68f11b05ef20d1e16e3cef"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1802.06203",
    "kind": "arxiv",
    "version": 1
  }
}