Pith Number

pith:VV7NTG2P

pith:2009:VV7NTG2P4T6JMZRTHKYRKRQJOF

not attested not anchored not stored refs pending

On the Calibration of a Size-Structured Population Model from Experimental Data

Jorge P. Zubelli (UCI), LJLL), Marie Doumic Jauffret (INRIA Rocquencourt, Pedro Maia (UCI)

arxiv:0909.0392 v1 · 2009-09-02 · math.NA · math.AP · q-bio.QM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VV7NTG2P4T6JMZRTHKYRKRQJOF}

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	2026-05-18T03:36:06.775423Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ad7ed99b4fe4fc9666333ab1154609716d800e4aa0bea2e3f68af00d33fe441f

Aliases

arxiv: 0909.0392 · arxiv_version: 0909.0392v1 · doi: 10.48550/arxiv.0909.0392 · pith_short_12: VV7NTG2P4T6J · pith_short_16: VV7NTG2P4T6JMZRT · pith_short_8: VV7NTG2P

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/VV7NTG2P4T6JMZRTHKYRKRQJOF \
  | 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: ad7ed99b4fe4fc9666333ab1154609716d800e4aa0bea2e3f68af00d33fe441f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "113a69605d6353408dfa2c05bfd19bb2967037ba63f060c5e7865bf20bba4c46",
    "cross_cats_sorted": [
      "math.AP",
      "q-bio.QM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2009-09-02T11:35:45Z",
    "title_canon_sha256": "a0eeda5d1b3a66287812b78a4c76bf3e98876619051d98801a74bbc020ca16d4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0909.0392",
    "kind": "arxiv",
    "version": 1
  }
}