Pith Number

pith:SPNKUYIF

pith:2013:SPNKUYIFMP5UFIEHP7F7DQZMEV

not attested not anchored not stored refs pending

Prey switching with a linear preference trade-off

M. A. Porter, P. K. Maini, S. H. Piltz

arxiv:1302.6197 v1 · 2013-02-25 · q-bio.PE · math.DS · nlin.AO · nlin.CD

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SPNKUYIFMP5UFIEHP7F7DQZMEV}

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	2026-05-18T01:01:29.640132Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

93daaa610563fb42a0877fcbf1c32c256ccdf799e6839f47fca8988a4ad73354

Aliases

arxiv: 1302.6197 · arxiv_version: 1302.6197v1 · doi: 10.48550/arxiv.1302.6197 · pith_short_12: SPNKUYIFMP5U · pith_short_16: SPNKUYIFMP5UFIEH · pith_short_8: SPNKUYIF

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/SPNKUYIFMP5UFIEHP7F7DQZMEV \
  | 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: 93daaa610563fb42a0877fcbf1c32c256ccdf799e6839f47fca8988a4ad73354

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "52e5fc8705b25f3bf0ffa9eaba2bfb715edc513dce7bc56bffa1e2c25463bc91",
    "cross_cats_sorted": [
      "math.DS",
      "nlin.AO",
      "nlin.CD"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "q-bio.PE",
    "submitted_at": "2013-02-25T19:23:07Z",
    "title_canon_sha256": "fcec7aac633704140da4cec1d443cffc214887cc7cd5026306f7eb6a600fa99b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1302.6197",
    "kind": "arxiv",
    "version": 1
  }
}