Pith Number

pith:463GHLFN

pith:2020:463GHLFNCSPK4VRN42NHS3KEDM

not attested not anchored not stored refs pending

Spruce budworm and oil price: a biophysical analogy

2), Claudio Della Volpe (1), Environmental, Italy), Italy (2) Institute for Chemical, Luca Pardi (2), Luciano Celi (1, Mechanical Engineering, National Research Council, Physical Processes, Pisa, Stefano Siboni (1) ((1) Department of Civil, University of Trento

arxiv:2004.14898 v1 · 2020-04-30 · econ.TH · physics.soc-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{463GHLFNCSPK4VRN42NHS3KEDM}

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	2026-07-05T00:59:30.825469Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e7b663acad149eae562de69a796d441b299feb0c2cd2c558f5811a162c624088

Aliases

arxiv: 2004.14898 · arxiv_version: 2004.14898v1 · doi: 10.48550/arxiv.2004.14898 · pith_short_12: 463GHLFNCSPK · pith_short_16: 463GHLFNCSPK4VRN · pith_short_8: 463GHLFN

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/463GHLFNCSPK4VRN42NHS3KEDM \
  | 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: e7b663acad149eae562de69a796d441b299feb0c2cd2c558f5811a162c624088

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6478d4e155572e9923f61f74dc9171129acc9f2dc51aa6435aea620438cb5eb4",
    "cross_cats_sorted": [
      "physics.soc-ph"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "econ.TH",
    "submitted_at": "2020-04-30T15:56:59Z",
    "title_canon_sha256": "a1174820d1ae9c530a5cbfe58c8447a92423a9c7689fb5917400268617ec60b1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2004.14898",
    "kind": "arxiv",
    "version": 1
  }
}