Pith Number

pith:5L6NDG6C

pith:2021:5L6NDG6C6JDEOWKZWB2ZYLNTDZ

not attested not anchored not stored refs pending

Discovering nonlinear resonances through physics-informed machine learning

G. D. Barmparis, G. P. Tsironis

arxiv:2104.13471 v2 · 2021-04-27 · physics.comp-ph · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5L6NDG6C6JDEOWKZWB2ZYLNTDZ}

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	2026-07-05T03:04:51.412003Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

eafcd19bc2f246475959b0759c2db31e7adb05ffa86bb22a09914231bdd98ba7

Aliases

arxiv: 2104.13471 · arxiv_version: 2104.13471v2 · doi: 10.48550/arxiv.2104.13471 · pith_short_12: 5L6NDG6C6JDE · pith_short_16: 5L6NDG6C6JDEOWKZ · pith_short_8: 5L6NDG6C

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/5L6NDG6C6JDEOWKZWB2ZYLNTDZ \
  | 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: eafcd19bc2f246475959b0759c2db31e7adb05ffa86bb22a09914231bdd98ba7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "afeecc51b628f81004ba449ca524bc24f2b3c4c8b1f127d743eab4aebde0f4ee",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.comp-ph",
    "submitted_at": "2021-04-27T20:53:40Z",
    "title_canon_sha256": "2e59542d0ea061618c7308fd15ecd1942f5790cb2b84f1f858f22f0f8e88b989"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2104.13471",
    "kind": "arxiv",
    "version": 2
  }
}