Pith Number

pith:DDQYWAF3

pith:2015:DDQYWAF37QTOM5PGE7VKH3O62Z

not attested not anchored not stored refs pending

Stability of a one-predator two-prey system governed by nonautonomous differential equations

Linh Thi Hoai Nguyen, Quang Hong Ta, Ton Viet Ta

arxiv:1508.07135 v2 · 2015-08-28 · math.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DDQYWAF37QTOM5PGE7VKH3O62Z}

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	2026-05-18T00:35:44.449791Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

18e18b00bbfc26e675e627eaa3edded67e70886639bbac5220caf4102efd2171

Aliases

arxiv: 1508.07135 · arxiv_version: 1508.07135v2 · doi: 10.48550/arxiv.1508.07135 · pith_short_12: DDQYWAF37QTO · pith_short_16: DDQYWAF37QTOM5PG · pith_short_8: DDQYWAF3

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/DDQYWAF37QTOM5PGE7VKH3O62Z \
  | 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: 18e18b00bbfc26e675e627eaa3edded67e70886639bbac5220caf4102efd2171

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5fd9cd2c660afcaf5d3a2cab40440bbf188ee87cfd18e62819da96015b2b2d27",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DS",
    "submitted_at": "2015-08-28T09:03:39Z",
    "title_canon_sha256": "c23f3915d86ef4e4c1dc14d4c97d880451408456cb4510569b38bc8924030579"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1508.07135",
    "kind": "arxiv",
    "version": 2
  }
}