Pith Number

pith:5VJL5SAE

pith:2017:5VJL5SAE2O3R7QUIH6LFCX2B3Z

not attested not anchored not stored refs pending

Projected Shadowing-based Data Assimilation

Andrew Steyer, Bart de Leeuw, Erik Van Vleck, Jason Frank, Svetlana Dubinkina, Xuemin Tu

arxiv:1707.09264 v1 · 2017-07-28 · math.DS · math.NA · 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{5VJL5SAE2O3R7QUIH6LFCX2B3Z}

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	2026-05-18T00:39:16.622246Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ed52bec804d3b71fc2883f96515f41de431a891adb3bb3b9bc176ab2be30bea4

Aliases

arxiv: 1707.09264 · arxiv_version: 1707.09264v1 · doi: 10.48550/arxiv.1707.09264 · pith_short_12: 5VJL5SAE2O3R · pith_short_16: 5VJL5SAE2O3R7QUI · pith_short_8: 5VJL5SAE

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/5VJL5SAE2O3R7QUIH6LFCX2B3Z \
  | 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: ed52bec804d3b71fc2883f96515f41de431a891adb3bb3b9bc176ab2be30bea4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "245b3122b17aee1ad3fa491a2498c4003b5b2077a12642b72961edb249c91573",
    "cross_cats_sorted": [
      "math.NA",
      "nlin.CD"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DS",
    "submitted_at": "2017-07-28T14:48:35Z",
    "title_canon_sha256": "f99548196f7e67d66737ab12f523769e4d22bb1a05a8f9691bfdbabe5704f92c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1707.09264",
    "kind": "arxiv",
    "version": 1
  }
}