Pith Number

pith:FUXFZEIG

pith:2018:FUXFZEIGODTUQO4D43QS6OZMPR

not attested not anchored not stored refs pending

An inverse problem of finding two time-dependent coefficients in second order hyperbolic equations from Dirichlet to Neumann map

Ibtissem Ben A\"icha, Mourad Bellassoued

arxiv:1810.01976 v1 · 2018-10-03 · 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{FUXFZEIGODTUQO4D43QS6OZMPR}

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	2026-05-18T00:04:06.685887Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2d2e5c910670e7483b83e6e12f3b2c7c4be476fedf931abe606caa39181ee0bc

Aliases

arxiv: 1810.01976 · arxiv_version: 1810.01976v1 · doi: 10.48550/arxiv.1810.01976 · pith_short_12: FUXFZEIGODTU · pith_short_16: FUXFZEIGODTUQO4D · pith_short_8: FUXFZEIG

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/FUXFZEIGODTUQO4D43QS6OZMPR \
  | 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: 2d2e5c910670e7483b83e6e12f3b2c7c4be476fedf931abe606caa39181ee0bc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "941dcbd0b2819630e9d688a9e2c9848d0c3b025905ffa70b603e63caf3c7e071",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2018-10-03T21:10:16Z",
    "title_canon_sha256": "4a8b5a2438590107dddbdb0805baf90ad6e9cf15656d84da4b805f9e39df7a80"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1810.01976",
    "kind": "arxiv",
    "version": 1
  }
}