Pith Number

pith:DQCI7H67

pith:2017:DQCI7H67GUQOE5BOAPQMTGQNDR

not attested not anchored not stored refs pending

An accurate regularization technique for the backward heat conduction problem with time-dependent thermal diffusivity factor

Fridoun Moradlou, Milad Karimi, Mojtaba Hajipour

arxiv:1710.02665 v1 · 2017-10-07 · math.FA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DQCI7H67GUQOE5BOAPQMTGQNDR}

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	2026-05-18T00:18:16.917802Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1c048f9fdf3520e2742e03e0c99a0d1c47beee371325df906cdbe68a8a3f6805

Aliases

arxiv: 1710.02665 · arxiv_version: 1710.02665v1 · doi: 10.48550/arxiv.1710.02665 · pith_short_12: DQCI7H67GUQO · pith_short_16: DQCI7H67GUQOE5BO · pith_short_8: DQCI7H67

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/DQCI7H67GUQOE5BOAPQMTGQNDR \
  | 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: 1c048f9fdf3520e2742e03e0c99a0d1c47beee371325df906cdbe68a8a3f6805

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c247a5b622dc0f3dd190d8652805de256350d7fdfcf475fece35aa47dc414199",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.FA",
    "submitted_at": "2017-10-07T10:28:25Z",
    "title_canon_sha256": "5500aec7530e48530fee2a7e79eab384705d11bcd2d1675b19ecf8631ced501c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1710.02665",
    "kind": "arxiv",
    "version": 1
  }
}