Pith Number

pith:Y4SHMY22

pith:2025:Y4SHMY22ZZFLJM32TYMUT5DGAD

not attested not anchored not stored refs pending

Direct and inverse problem for bi-wave equation with time-dependent coefficients from partial data

Pranav Kumar, Sombuddha Bhattacharyya

arxiv:2504.15911 v2 · 2025-04-22 · 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{Y4SHMY22ZZFLJM32TYMUT5DGAD}

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	2026-05-28T01:05:10.418874Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c72476635ace4ab4b37a9e1949f46600ecfbd273c46d31a134ec925303ee74d0

Aliases

arxiv: 2504.15911 · arxiv_version: 2504.15911v2 · doi: 10.48550/arxiv.2504.15911 · pith_short_12: Y4SHMY22ZZFL · pith_short_16: Y4SHMY22ZZFLJM32 · pith_short_8: Y4SHMY22

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/Y4SHMY22ZZFLJM32TYMUT5DGAD \
  | 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: c72476635ace4ab4b37a9e1949f46600ecfbd273c46d31a134ec925303ee74d0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9ff143c2fd67e28872ea405bbf7e3140f648515e1e5084287466c41fc7a56efc",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2025-04-22T13:56:50Z",
    "title_canon_sha256": "97481e2847de5fb435f8d948e6c97d9a5cc52e9b54056a199fe22d1835998016"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2504.15911",
    "kind": "arxiv",
    "version": 2
  }
}