Pith Number

pith:A42FLPQF

pith:2025:A42FLPQFNWGX4QMVR57JVEIQ7O

not attested not anchored not stored refs pending

Large-Scale Topology Optimisation of Time-dependent Thermal Conduction Using Space-Time Finite Elements and a Parallel Space-Time Multigrid Preconditioner

Joe Alexandersen, Magnus Appel

arxiv:2508.09589 v1 · 2025-08-13 · cs.CE · math.OC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{A42FLPQFNWGX4QMVR57JVEIQ7O}

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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.

Cited by

1 paper in Pith

PILL-CoDe: Inverse Design of Polypills via Automatic Differentiation for Prescribed Drug-Release Kinetics

Receipt and verification

First computed	2026-07-05T11:53:17.765347Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

073455be056d8d7e41958f7e9a9110fb88217fc7daff996ba5a6a504a5668339

Aliases

arxiv: 2508.09589 · arxiv_version: 2508.09589v1 · doi: 10.48550/arxiv.2508.09589 · pith_short_12: A42FLPQFNWGX · pith_short_16: A42FLPQFNWGX4QMV · pith_short_8: A42FLPQF

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/A42FLPQFNWGX4QMVR57JVEIQ7O \
  | 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: 073455be056d8d7e41958f7e9a9110fb88217fc7daff996ba5a6a504a5668339

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e96e73f6caedc24eddcf04af75ff920ba5245798cc7084462f5f6e4cbec8c5a6",
    "cross_cats_sorted": [
      "math.OC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CE",
    "submitted_at": "2025-08-13T08:07:40Z",
    "title_canon_sha256": "2bff39e08a9c82d9795b762005d7495566ead1c80eb91b895b6d43a6408165ea"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2508.09589",
    "kind": "arxiv",
    "version": 1
  }
}