Pith Number

pith:NTGA2ZAQ

pith:2009:NTGA2ZAQE2ZSCP4GETULHIFTOJ

not attested not anchored not stored refs pending

An energy-preserving Discrete Element Method for elastodynamics

Christian Mariotti, Laurent Monasse

arxiv:0907.2202 v2 · 2009-07-13 · 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{NTGA2ZAQE2ZSCP4GETULHIFTOJ}

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	2026-05-18T00:56:12.811983Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6ccc0d641026b3213f8624e8b3a0b3726c37eb0de59e0cd76c53dc78e9596c73

Aliases

arxiv: 0907.2202 · arxiv_version: 0907.2202v2 · doi: 10.48550/arxiv.0907.2202 · pith_short_12: NTGA2ZAQE2ZS · pith_short_16: NTGA2ZAQE2ZSCP4G · pith_short_8: NTGA2ZAQ

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/NTGA2ZAQE2ZSCP4GETULHIFTOJ \
  | 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: 6ccc0d641026b3213f8624e8b3a0b3726c37eb0de59e0cd76c53dc78e9596c73

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a5ff45d45ccc8940bdeb2179f72c42a59e424252c744936884da254e30139daa",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2009-07-13T16:15:53Z",
    "title_canon_sha256": "a0bd0e70b5610b52244193e03f163ad47cf5ad8ea16469ee00a2145a41f8d8da"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0907.2202",
    "kind": "arxiv",
    "version": 2
  }
}