Pith Number

pith:UV5DFVET

pith:2024:UV5DFVETYQRP5VI5I3CXYAFVPM

not attested not anchored not stored refs pending

Conditional well-posedness and data-driven method for identifying the dynamic source in a coupled diffusion system from one single boundary measurement

Chunlong Sun, Mengmeng Zhang, Zhidong Zhang

arxiv:2405.07616 v1 · 2024-05-13 · math.NA · cs.NA · math-ph · math.AP · math.MP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UV5DFVETYQRP5VI5I3CXYAFVPM}

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	2026-07-05T08:18:25.556682Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a57a32d493c422fed51d46c57c00b57b1248d02e8bcf42c78e129785e1548576

Aliases

arxiv: 2405.07616 · arxiv_version: 2405.07616v1 · doi: 10.48550/arxiv.2405.07616 · pith_short_12: UV5DFVETYQRP · pith_short_16: UV5DFVETYQRP5VI5 · pith_short_8: UV5DFVET

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/UV5DFVETYQRP5VI5I3CXYAFVPM \
  | 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: a57a32d493c422fed51d46c57c00b57b1248d02e8bcf42c78e129785e1548576

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "35634f5ba76e889b5133645372dd292207c626705254d9d35192e2421522e554",
    "cross_cats_sorted": [
      "cs.NA",
      "math-ph",
      "math.AP",
      "math.MP"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2024-05-13T10:24:21Z",
    "title_canon_sha256": "daf6673bf1bfcbc5825092515c0087076302f44bfed47b756d8e9b20cc16fea6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2405.07616",
    "kind": "arxiv",
    "version": 1
  }
}