Pith Number

pith:O5U4C6Z7

pith:2026:O5U4C6Z7CL4KJXM7VUBM3N4TU6

not attested not anchored not stored refs pending

Numerical methods for optimal decumulation of a defined contribution pension plan

George Labahn, Peter A. Forsyth

arxiv:2605.17744 v1 · 2026-05-18 · cs.CE · cs.NA · 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{O5U4C6Z7CL4KJXM7VUBM3N4TU6}

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	2026-05-20T00:04:56.100067Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7769c17b3f12f8a4dd9fad02cdb793a78c5e5e0ac6017b3a3955a3edb513e25c

Aliases

arxiv: 2605.17744 · arxiv_version: 2605.17744v1 · doi: 10.48550/arxiv.2605.17744 · pith_short_12: O5U4C6Z7CL4K · pith_short_16: O5U4C6Z7CL4KJXM7 · pith_short_8: O5U4C6Z7

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/O5U4C6Z7CL4KJXM7VUBM3N4TU6 \
  | 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: 7769c17b3f12f8a4dd9fad02cdb793a78c5e5e0ac6017b3a3955a3edb513e25c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0415384e47ae9e7e0c42cfa2872ecffb1694d42f6b7cc433abd8acc9d8b9e779",
    "cross_cats_sorted": [
      "cs.NA",
      "math.NA"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "cs.CE",
    "submitted_at": "2026-05-18T01:52:15Z",
    "title_canon_sha256": "b9fed8d95b81891ffd69d9231e5777ffa090df3cd26d8da8f4f42298421f1c55"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.17744",
    "kind": "arxiv",
    "version": 1
  }
}