Pith Number

pith:4XYMFCMM

pith:2017:4XYMFCMMSBFUAAZ7BX5RCSREQ6

not attested not anchored not stored refs pending

High prices for rare species can drive large populations extinct: the anthropogenic Allee effect revisited

Eve McDonald-Madden, Matthew H Holden

arxiv:1703.06736 v2 · 2017-03-20 · 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{4XYMFCMMSBFUAAZ7BX5RCSREQ6}

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	2026-05-18T00:36:14.167292Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e5f0c2898c904b40033f0dfb114a248799341206be6a4e01aaa877ab32094d2a

Aliases

arxiv: 1703.06736 · arxiv_version: 1703.06736v2 · doi: 10.48550/arxiv.1703.06736 · pith_short_12: 4XYMFCMMSBFU · pith_short_16: 4XYMFCMMSBFUAAZ7 · pith_short_8: 4XYMFCMM

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/4XYMFCMMSBFUAAZ7BX5RCSREQ6 \
  | 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: e5f0c2898c904b40033f0dfb114a248799341206be6a4e01aaa877ab32094d2a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7aa6a6080bd6caf410e3aa49eadedfcf6fce9374587636f7094855b358cfd74e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "q-bio.PE",
    "submitted_at": "2017-03-20T13:35:20Z",
    "title_canon_sha256": "7958ea80274309bfb7f3a6590b1a2bc139d7ac6d5f3474cf3256562403385bed"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1703.06736",
    "kind": "arxiv",
    "version": 2
  }
}