Pith Number

pith:K2KQA43T

pith:2012:K2KQA43TIWGXOOXDUJVX7LCLJG

not attested not anchored not stored refs pending

Automated derivation of the adjoint of high-level transient finite element programs

(2) Department of Computing Imperial College London, 3), (3) Grantham Institute for Climate Change Imperial College London, (4) Simula Research Laboratory Lysaker Norway), David A. Ham (2, Engineering Imperial College London, Marie E. Rognes (4) ((1) Department of Earth Science, Patrick E. Farrell (1), Simon F. Funke (1

arxiv:1204.5577 v2 · 2012-04-25 · cs.MS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{K2KQA43TIWGXOOXDUJVX7LCLJG}

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.

Cited by

1 paper in Pith

Variational Inference Using a Differentiable Multigrid Linear Solver

Receipt and verification

First computed	2026-05-18T03:10:24.521975Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5695007373458d773ae3a26b7fac4b49977eb38a262bf25030241a2f63c51ffc

Aliases

arxiv: 1204.5577 · arxiv_version: 1204.5577v2 · doi: 10.48550/arxiv.1204.5577 · pith_short_12: K2KQA43TIWGX · pith_short_16: K2KQA43TIWGXOOXD · pith_short_8: K2KQA43T

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/K2KQA43TIWGXOOXDUJVX7LCLJG \
  | 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: 5695007373458d773ae3a26b7fac4b49977eb38a262bf25030241a2f63c51ffc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7e89cfb2d31065390de1354d543d054f1b4a0b5b71913fec4597d257ffa642eb",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.MS",
    "submitted_at": "2012-04-25T07:25:31Z",
    "title_canon_sha256": "a0c8a2ba5a364a78950dedfca6f5d58535c322b1309f35983d8fc90f3a47e539"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1204.5577",
    "kind": "arxiv",
    "version": 2
  }
}