Pith Number

pith:SRRMY57G

pith:2021:SRRMY57G5YZWCZLHTBIO6OF7MG

not attested not anchored not stored refs pending

Physics-informed dynamic mode decomposition (piDMD)

Benjamin Herrmann, Beverley J. McKeon, J. Nathan Kutz, Peter J. Baddoo, Steven L. Brunton

arxiv:2112.04307 v1 · 2021-12-08 · math.DS · cs.NA · math.NA · math.OC · physics.data-an · physics.flu-dyn

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SRRMY57G5YZWCZLHTBIO6OF7MG}

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	2026-07-05T03:39:08.260476Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9462cc77e6ee336165679850ef38bf61afa02d725d797a3e125ac5413a10df57

Aliases

arxiv: 2112.04307 · arxiv_version: 2112.04307v1 · doi: 10.48550/arxiv.2112.04307 · pith_short_12: SRRMY57G5YZW · pith_short_16: SRRMY57G5YZWCZLH · pith_short_8: SRRMY57G

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/SRRMY57G5YZWCZLHTBIO6OF7MG \
  | 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: 9462cc77e6ee336165679850ef38bf61afa02d725d797a3e125ac5413a10df57

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c1873e053c42e951fce006975cc7f0df863cbfb8b4af7a3efa0c1c5b6bc58124",
    "cross_cats_sorted": [
      "cs.NA",
      "math.NA",
      "math.OC",
      "physics.data-an",
      "physics.flu-dyn"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.DS",
    "submitted_at": "2021-12-08T14:37:22Z",
    "title_canon_sha256": "52cc6a10eadabda4be07a70480e6bee40cf93b388c9f1fdac7ec29aa602c3053"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2112.04307",
    "kind": "arxiv",
    "version": 1
  }
}