Pith Number

pith:WAQHLJ5V

pith:2016:WAQHLJ5VI7WC7SPU5JIA35WBDF

not attested not anchored not stored refs pending

Sheldon Spectrum and the Plankton Paradox: Two Sides of the Same Coin. A trait-based plankton size-spectrum model

Gustav W. Delius, Jos\'e A. Cuesta, Richard Law

arxiv:1607.04158 v1 · 2016-07-14 · q-bio.PE · physics.bio-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{WAQHLJ5VI7WC7SPU5JIA35WBDF}

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	2026-05-18T00:43:43.563625Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b02075a7b547ec2fc9f4ea500df6c119618a0f83340bc884403fce9994ad6ccb

Aliases

arxiv: 1607.04158 · arxiv_version: 1607.04158v1 · doi: 10.48550/arxiv.1607.04158 · pith_short_12: WAQHLJ5VI7WC · pith_short_16: WAQHLJ5VI7WC7SPU · pith_short_8: WAQHLJ5V

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/WAQHLJ5VI7WC7SPU5JIA35WBDF \
  | 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: b02075a7b547ec2fc9f4ea500df6c119618a0f83340bc884403fce9994ad6ccb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0bb49d8dc50313ee88672140ebb722512ab5a425368316ab37004902f7437c20",
    "cross_cats_sorted": [
      "physics.bio-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "q-bio.PE",
    "submitted_at": "2016-07-14T15:00:04Z",
    "title_canon_sha256": "0a1d41ef9a67593ea7ae0420fabe9c8416e59d37fa021b9008f74c705a7a8b83"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1607.04158",
    "kind": "arxiv",
    "version": 1
  }
}