Pith Number

pith:5USS3CL7

pith:2015:5USS3CL7SAPARXEAEFMXEBTU52

not attested not anchored not stored refs pending

A deterministic optimal design problem for the heat equation

Alden Waters, Heiko Gimperlein

arxiv:1506.06937 v3 · 2015-06-23 · math.AP · 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{5USS3CL7SAPARXEAEFMXEBTU52}

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	2026-05-18T01:14:45.273046Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ed252d897f901e08dc802159720674ee848aff6e1b4818834790dcd1f18f43ed

Aliases

arxiv: 1506.06937 · arxiv_version: 1506.06937v3 · doi: 10.48550/arxiv.1506.06937 · pith_short_12: 5USS3CL7SAPA · pith_short_16: 5USS3CL7SAPARXEA · pith_short_8: 5USS3CL7

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/5USS3CL7SAPARXEAEFMXEBTU52 \
  | 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: ed252d897f901e08dc802159720674ee848aff6e1b4818834790dcd1f18f43ed

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3bd284f731d6348270c2eca2118dd3c5b27f0255a4107876e4cbab97f9314582",
    "cross_cats_sorted": [
      "math.OC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2015-06-23T10:47:45Z",
    "title_canon_sha256": "654978f4b71f150e3d7a0624531a54e20a1807c9b8823079099e9526c30ec3fe"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1506.06937",
    "kind": "arxiv",
    "version": 3
  }
}