Pith Number

pith:2V7ACFB4

pith:2019:2V7ACFB4FR2GJHILH6S4R35T4C

not attested not anchored not stored refs pending

On a geometric description of time dependent singular Lagrangians with applications to biological systems

A Ghose-Choudhury, Partha Guha, Sudip Garai

arxiv:1908.09647 v2 · 2019-08-20 · q-bio.PE · nlin.SI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2V7ACFB4FR2GJHILH6S4R35T4C}

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	2026-07-05T02:10:05.307568Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d57e01143c2c74649d0b3fa5c8efb3e0acc272db03b21447d81a3a56faaa6261

Aliases

arxiv: 1908.09647 · arxiv_version: 1908.09647v2 · doi: 10.48550/arxiv.1908.09647 · pith_short_12: 2V7ACFB4FR2G · pith_short_16: 2V7ACFB4FR2GJHIL · pith_short_8: 2V7ACFB4

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/2V7ACFB4FR2GJHILH6S4R35T4C \
  | 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: d57e01143c2c74649d0b3fa5c8efb3e0acc272db03b21447d81a3a56faaa6261

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "46ea1b94c998924fcb0dbfbb0016f1fc63fee30c87be49f10a4a3908ab1d1053",
    "cross_cats_sorted": [
      "nlin.SI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "q-bio.PE",
    "submitted_at": "2019-08-20T08:00:05Z",
    "title_canon_sha256": "7f5dab6d1c26d3018921e70c66239953f0df6a5e6f570484655e9a20f8a610ff"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.09647",
    "kind": "arxiv",
    "version": 2
  }
}