Pith Number

pith:ELAPRRIX

pith:2009:ELAPRRIXDY2MBFI42G5KAWRXF5

not attested not anchored not stored refs pending

The momentum map representation of images

D. D. Holm, F. Gay-Balmaz, M. Bruveris, T. S. Ratiu

arxiv:0912.2990 v2 · 2009-12-16 · 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{ELAPRRIXDY2MBFI42G5KAWRXF5}

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	2026-05-18T02:19:26.037295Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

22c0f8c5171e34c0951cd1baa05a372f50b0fe6cc9bc241720b2e5c62b6dd90c

Aliases

arxiv: 0912.2990 · arxiv_version: 0912.2990v2 · doi: 10.48550/arxiv.0912.2990 · pith_short_12: ELAPRRIXDY2M · pith_short_16: ELAPRRIXDY2MBFI4 · pith_short_8: ELAPRRIX

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/ELAPRRIXDY2MBFI42G5KAWRXF5 \
  | 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: 22c0f8c5171e34c0951cd1baa05a372f50b0fe6cc9bc241720b2e5c62b6dd90c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bf1af99cf15e5f6eb895ae3a8009048802b627293c066ecaeafc3ff3e8cc70f0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "nlin.CD",
    "submitted_at": "2009-12-16T00:34:26Z",
    "title_canon_sha256": "92efd71578e3cf5231a6bca95c9b05a2d1deb1134a6681d8e237743ace46aa56"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0912.2990",
    "kind": "arxiv",
    "version": 2
  }
}