Pith Number

pith:AK2CESM6

pith:2017:AK2CESM6LK7HNRMGKR2DS36POS

not attested not anchored not stored refs pending

Piecewise linear secant approximation via Algorithmic Piecewise Differentiation

Andreas Griewank, Lutz Lehmann, Manuel Radons, Richard Hasenfelder, Tom Streubel

arxiv:1701.04368 v2 · 2017-01-16 · 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{AK2CESM6LK7HNRMGKR2DS36POS}

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	2026-05-18T00:38:13.746669Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

02b422499e5abe76c5865474396fcf74addca685242429336e0b0e7b0c0a680f

Aliases

arxiv: 1701.04368 · arxiv_version: 1701.04368v2 · doi: 10.48550/arxiv.1701.04368 · pith_short_12: AK2CESM6LK7H · pith_short_16: AK2CESM6LK7HNRMG · pith_short_8: AK2CESM6

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/AK2CESM6LK7HNRMGKR2DS36POS \
  | 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: 02b422499e5abe76c5865474396fcf74addca685242429336e0b0e7b0c0a680f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bb6215d7e1ce2d87a7dc3532a906f205d88320de17ee5f73d93892043e898234",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2017-01-16T17:43:54Z",
    "title_canon_sha256": "bee30f0908ff2400fc8548ad8868b684a9adf71f7aeaf9bfba28bbd7df96eafc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1701.04368",
    "kind": "arxiv",
    "version": 2
  }
}