Pith Number

pith:ELVIICVZ

pith:2015:ELVIICVZ4E6R6WOTT2TWJDYHFV

not attested not anchored not stored refs pending

Looplessness in networks is linked to trophic coherence

Nick S. Jones, Samuel Johnson

arxiv:1505.07332 v3 · 2015-05-20 · 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{ELVIICVZ4E6R6WOTT2TWJDYHFV}

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	2026-05-18T00:42:44.621175Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

22ea840ab9e13d1f59d39ea7648f072d4d32d327b049020bb515c1f33122e53c

Aliases

arxiv: 1505.07332 · arxiv_version: 1505.07332v3 · doi: 10.48550/arxiv.1505.07332 · pith_short_12: ELVIICVZ4E6R · pith_short_16: ELVIICVZ4E6R6WOT · pith_short_8: ELVIICVZ

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/ELVIICVZ4E6R6WOTT2TWJDYHFV \
  | 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: 22ea840ab9e13d1f59d39ea7648f072d4d32d327b049020bb515c1f33122e53c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9fe5ac5ad0cfe67f05284ea6dfe483b29df13f9a5357e57e09e31c46713ff8d2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.soc-ph",
    "submitted_at": "2015-05-20T15:50:09Z",
    "title_canon_sha256": "591bb1fe00305543e34421d95a02f440e98f762994884b6a26c10b5440336dfb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1505.07332",
    "kind": "arxiv",
    "version": 3
  }
}