Pith Number

pith:UB4DM3ZN

pith:2019:UB4DM3ZNCN5MU4JEPWQLEJ3SAE

not attested not anchored not stored refs pending

Predictive Accuracy of Dynamic Mode Decomposition

Daniel M. Tartakovsky, Hannah Lu

arxiv:1905.01587 v1 · 2019-05-05 · math.NA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UB4DM3ZNCN5MU4JEPWQLEJ3SAE}

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	2026-05-17T23:46:58.080563Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a078366f2d137aca71247da0b22772010233651e821d05b9669c0d0e6d2a652c

Aliases

arxiv: 1905.01587 · arxiv_version: 1905.01587v1 · doi: 10.48550/arxiv.1905.01587 · pith_short_12: UB4DM3ZNCN5M · pith_short_16: UB4DM3ZNCN5MU4JE · pith_short_8: UB4DM3ZN

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/UB4DM3ZNCN5MU4JEPWQLEJ3SAE \
  | 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: a078366f2d137aca71247da0b22772010233651e821d05b9669c0d0e6d2a652c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "62b07d7f15109af724e0616704b77321ce54ebbad292a50d8fd8139d3549a58a",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2019-05-05T02:58:58Z",
    "title_canon_sha256": "31e9b20af87e645cf92174623ff7693ecb22c434d7ba50c6db60099b9c8b68e2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1905.01587",
    "kind": "arxiv",
    "version": 1
  }
}