Pith Number

pith:BPTSJ2L4

pith:2015:BPTSJ2L4KYJUMKAC67GOGTBG7G

not attested not anchored not stored refs pending

Simple rules for establishment of effective marine protected areas in an age-structured metapopulation

Nao Takashina

arxiv:1502.07413 v3 · 2015-02-26 · 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{BPTSJ2L4KYJUMKAC67GOGTBG7G}

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	2026-05-18T01:23:32.260958Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0be724e97c5613462802f7cce34c26f997ce45241119bf7b18c921be35261f1c

Aliases

arxiv: 1502.07413 · arxiv_version: 1502.07413v3 · doi: 10.48550/arxiv.1502.07413 · pith_short_12: BPTSJ2L4KYJU · pith_short_16: BPTSJ2L4KYJUMKAC · pith_short_8: BPTSJ2L4

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/BPTSJ2L4KYJUMKAC67GOGTBG7G \
  | 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: 0be724e97c5613462802f7cce34c26f997ce45241119bf7b18c921be35261f1c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "686f488fe362aa253a0f82f792f9e512ecd9e8248061607f3e35b3dd2ec15789",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "q-bio.PE",
    "submitted_at": "2015-02-26T01:55:22Z",
    "title_canon_sha256": "e4ed2af8d0372669c8bd060a844b91b7b5078c5b105626158bb23118cffe9ce1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1502.07413",
    "kind": "arxiv",
    "version": 3
  }
}