Pith Number

pith:TPCM75VA

pith:2017:TPCM75VAK7RBKSILDRPS5GH2W6

not attested not anchored not stored refs pending

Optimal Control of Coefficients in Parabolic Free Boundary Problems Modeling Laser Ablation

Jonathan Goldfarb, Ugur G. Abdulla

arxiv:1710.08466 v1 · 2017-10-23 · 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{TPCM75VAK7RBKSILDRPS5GH2W6}

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	2026-05-18T00:32:15.961751Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9bc4cff6a057e215490b1c5f2e98fab797635f1ef0930d623073e71ad3ec68cb

Aliases

arxiv: 1710.08466 · arxiv_version: 1710.08466v1 · doi: 10.48550/arxiv.1710.08466 · pith_short_12: TPCM75VAK7RB · pith_short_16: TPCM75VAK7RBKSIL · pith_short_8: TPCM75VA

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/TPCM75VAK7RBKSILDRPS5GH2W6 \
  | 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: 9bc4cff6a057e215490b1c5f2e98fab797635f1ef0930d623073e71ad3ec68cb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "96b8e58ab1b263dee3c2f7f11fc87b3a0fabd799dd831d4c780abe4fd15949ad",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2017-10-23T19:29:35Z",
    "title_canon_sha256": "89895cda22bd607aca1c6ac0d39c88053fb60faafd7dee577b0d42aa02fafdab"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1710.08466",
    "kind": "arxiv",
    "version": 1
  }
}