Pith Number

pith:DUIQVSVH

pith:2017:DUIQVSVHCQ2VFGBDBP54OZT4AN

not attested not anchored not stored refs pending

(Un)predictability of strong El Ni\~no events

Andrew Roberts, Axel Timmermann, Henk Dijkstra, John Guckenheimer

arxiv:1710.03216 v1 · 2017-10-09 · math.DS · 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{DUIQVSVHCQ2VFGBDBP54OZT4AN}

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	2026-05-18T00:33:26.719287Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1d110acaa714355298230bfbc7667c0349f983b96a2316720b0d456f4ea17c80

Aliases

arxiv: 1710.03216 · arxiv_version: 1710.03216v1 · doi: 10.48550/arxiv.1710.03216 · pith_short_12: DUIQVSVHCQ2V · pith_short_16: DUIQVSVHCQ2VFGBD · pith_short_8: DUIQVSVH

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/DUIQVSVHCQ2VFGBDBP54OZT4AN \
  | 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: 1d110acaa714355298230bfbc7667c0349f983b96a2316720b0d456f4ea17c80

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "adebd058a226f70d8275266a3ee4edab141b4855875ad7e1df1c349627ecc7cf",
    "cross_cats_sorted": [
      "nlin.CD"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DS",
    "submitted_at": "2017-10-09T17:51:46Z",
    "title_canon_sha256": "def1cf2d7fada5ffce0f4b98516707de698637d86a61be6418059ce950210e1f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1710.03216",
    "kind": "arxiv",
    "version": 1
  }
}