Pith Number

pith:FRE3QPJZ

pith:2021:FRE3QPJZBLXB74LX6JB2EWMQIS

not attested not anchored not stored refs pending

Accurate and Efficient Simulations of Hamiltonian Mechanical Systems with Discontinuous Potentials

Molei Tao, Shi Jin

arxiv:2101.11018 v1 · 2021-01-26 · math.NA · cs.CE · cs.NA · math.DS · physics.comp-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FRE3QPJZBLXB74LX6JB2EWMQIS}

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	2026-07-05T03:45:26.366078Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2c49b83d390aee1ff177f243a2599044bdcae92d688dbfd38cd60b273e39591c

Aliases

arxiv: 2101.11018 · arxiv_version: 2101.11018v1 · doi: 10.48550/arxiv.2101.11018 · pith_short_12: FRE3QPJZBLXB · pith_short_16: FRE3QPJZBLXB74LX · pith_short_8: FRE3QPJZ

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/FRE3QPJZBLXB74LX6JB2EWMQIS \
  | 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: 2c49b83d390aee1ff177f243a2599044bdcae92d688dbfd38cd60b273e39591c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fbd102b7e6fe38460e39f15dda185d07801626de97c6fe0fc2456422970c3cac",
    "cross_cats_sorted": [
      "cs.CE",
      "cs.NA",
      "math.DS",
      "physics.comp-ph"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2021-01-26T19:00:03Z",
    "title_canon_sha256": "5f2f9025c3ecabf7cbd1806629a226a095b0f83952a4bb5bbafb4c528b63e452"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2101.11018",
    "kind": "arxiv",
    "version": 1
  }
}