Pith Number

pith:HHLWXO2P

pith:2022:HHLWXO2PFYMWRXY57RMKRZKTD4

not attested not anchored not stored refs pending

Describing the evolution and perturbations to biodiversity using a simple dynamical model

A. Bernardo, J. E. Horvath (IAG-USP), L. G. Bar\~ao, L. M. de S\'a

arxiv:2212.01693 v2 · 2022-12-03 · q-bio.PE · 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{HHLWXO2PFYMWRXY57RMKRZKTD4}

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	2026-07-05T05:33:21.487540Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

39d76bbb4f2e1968df1dfc58a8e5531f1dda332c9b157d63114207f4c6726fa7

Aliases

arxiv: 2212.01693 · arxiv_version: 2212.01693v2 · doi: 10.48550/arxiv.2212.01693 · pith_short_12: HHLWXO2PFYMW · pith_short_16: HHLWXO2PFYMWRXY5 · pith_short_8: HHLWXO2P

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/HHLWXO2PFYMWRXY57RMKRZKTD4 \
  | 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: 39d76bbb4f2e1968df1dfc58a8e5531f1dda332c9b157d63114207f4c6726fa7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b6b32998abaf3b702f030b45e4371685f6851a3f5c9a2b34a3d4bca42d778142",
    "cross_cats_sorted": [
      "q-bio.QM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "q-bio.PE",
    "submitted_at": "2022-12-03T21:15:09Z",
    "title_canon_sha256": "24fe40120523ebccbcadbea64589cd23364c681fbfc3628609b23ca4dba21d87"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2212.01693",
    "kind": "arxiv",
    "version": 2
  }
}