Pith Number

pith:4Y5A2W3I

pith:2018:4Y5A2W3I3JJVLWKDYANI5C5O7F

not attested not anchored not stored refs pending

Parameter identification in a structured population model

Alexander Lorz, Jan-Frederik Pietschmann, Matthias Schlottbom

arxiv:1811.03434 v1 · 2018-11-08 · math.AP · 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{4Y5A2W3I3JJVLWKDYANI5C5O7F}

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	2026-06-04T20:13:40.086357Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e63a0d5b68da5355d943c01a8e8baef9782ed015b31d958400d3888088071e5c

Aliases

arxiv: 1811.03434 · arxiv_version: 1811.03434v1 · doi: 10.48550/arxiv.1811.03434 · pith_short_12: 4Y5A2W3I3JJV · pith_short_16: 4Y5A2W3I3JJVLWKD · pith_short_8: 4Y5A2W3I

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/4Y5A2W3I3JJVLWKDYANI5C5O7F \
  | 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: e63a0d5b68da5355d943c01a8e8baef9782ed015b31d958400d3888088071e5c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "83b7ceeeecffc48bbf63451d838549b374d5bbc0d427f33193a24bfb24cc1261",
    "cross_cats_sorted": [
      "cs.NA",
      "math.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2018-11-08T14:23:00Z",
    "title_canon_sha256": "7ba6f22c68e2ae2649bffdd7975caa458c2e5954f546c1c90b3705a462dfdc82"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1811.03434",
    "kind": "arxiv",
    "version": 1
  }
}