Pith Number

pith:4EZU52O7

pith:2015:4EZU52O7UHUK4V75K6OJCS5FR4

not attested not anchored not stored refs pending

The Multilayer Nature of Ecological Networks

Mason A. Porter, Mercedes Pascual, Shai Pilosof, Sonia K\'efi

arxiv:1511.04453 v3 · 2015-11-13 · q-bio.QM · cond-mat.dis-nn · nlin.AO · physics.data-an · q-bio.PE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4EZU52O7UHUK4V75K6OJCS5FR4}

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	2026-05-18T00:48:01.407854Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e1334ee9dfa1e8ae57fd579c914ba58f2c35fa26f1bce842846ce64966454320

Aliases

arxiv: 1511.04453 · arxiv_version: 1511.04453v3 · doi: 10.48550/arxiv.1511.04453 · pith_short_12: 4EZU52O7UHUK · pith_short_16: 4EZU52O7UHUK4V75 · pith_short_8: 4EZU52O7

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/4EZU52O7UHUK4V75K6OJCS5FR4 \
  | 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: e1334ee9dfa1e8ae57fd579c914ba58f2c35fa26f1bce842846ce64966454320

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f82f081de75e694e29b2928817cfb3fe961f33bde7e0571ffefd13b9063918d8",
    "cross_cats_sorted": [
      "cond-mat.dis-nn",
      "nlin.AO",
      "physics.data-an",
      "q-bio.PE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "q-bio.QM",
    "submitted_at": "2015-11-13T21:00:23Z",
    "title_canon_sha256": "b625c5dca37a8e5afcc9fc8fc2547c06be5a926514b0fda28c6cf3fd2da78a10"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1511.04453",
    "kind": "arxiv",
    "version": 3
  }
}