Pith Number

pith:4FVOWIYG

pith:2017:4FVOWIYGSSVQXET33L742P7UA6

not attested not anchored not stored refs pending

Application of the cut-off projection to solve a backward heat conduction problem in a two-slab composite system

Mach Nguyet Minh, Mai Thanh Nhat Truong, Nguyen Huy Tuan, Tran The Hung, Vo Anh Khoa

arxiv:1710.07245 v2 · 2017-10-19 · math.AP · 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{4FVOWIYGSSVQXET33L742P7UA6}

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	2026-06-04T19:11:06.452360Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e16aeb230694ab0b927bdaffcd3ff407837fa4d296ce6930ac35d892c5bc09f7

Aliases

arxiv: 1710.07245 · arxiv_version: 1710.07245v2 · doi: 10.48550/arxiv.1710.07245 · pith_short_12: 4FVOWIYGSSVQ · pith_short_16: 4FVOWIYGSSVQXET3 · pith_short_8: 4FVOWIYG

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/4FVOWIYGSSVQXET33L742P7UA6 \
  | 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: e16aeb230694ab0b927bdaffcd3ff407837fa4d296ce6930ac35d892c5bc09f7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "354fdc5891bada398ff6ae6aa6ba56d32fd35805e7d77150088a8e3a4401b563",
    "cross_cats_sorted": [
      "cs.NA",
      "math.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2017-10-19T17:02:11Z",
    "title_canon_sha256": "753371c40814fd1b62b4de591990dd2e568130414eb3ee948f3fa3d7236ccaf8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1710.07245",
    "kind": "arxiv",
    "version": 2
  }
}