Pith Number

pith:ROKY5ZFW

pith:2009:ROKY5ZFWM2D7TNG2I2OM3BHK6H

not attested not anchored not stored refs pending

Some open questions concerning biological growth

Carlos Escudero

arxiv:0912.2717 v1 · 2009-12-14 · cond-mat.stat-mech · math-ph · math.MP · 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{ROKY5ZFWM2D7TNG2I2OM3BHK6H}

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	2026-05-18T04:11:51.951371Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8b958ee4b66687f9b4da469ccd84eaf1efcc1196073e9194c1c8eadd407a203b

Aliases

arxiv: 0912.2717 · arxiv_version: 0912.2717v1 · doi: 10.48550/arxiv.0912.2717 · pith_short_12: ROKY5ZFWM2D7 · pith_short_16: ROKY5ZFWM2D7TNG2 · pith_short_8: ROKY5ZFW

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/ROKY5ZFWM2D7TNG2I2OM3BHK6H \
  | 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: 8b958ee4b66687f9b4da469ccd84eaf1efcc1196073e9194c1c8eadd407a203b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b624f0d08e2fa3b0241e7527edc5cc16d0c2ac265b7d87a4c6d392d9c89aacbc",
    "cross_cats_sorted": [
      "math-ph",
      "math.MP",
      "q-bio.QM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.stat-mech",
    "submitted_at": "2009-12-14T19:54:18Z",
    "title_canon_sha256": "65f241b8ff8517b6e6f153267bdd1adb036075c021e449a492248669492de18a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0912.2717",
    "kind": "arxiv",
    "version": 1
  }
}