Pith Number

pith:P5QILQQL

pith:2012:P5QILQQL6IIANFIDFKIURCZQKC

not attested not anchored not stored refs pending

Weak instability of Hamiltonian equilibria

Gaetano Zampieri

arxiv:1210.1334 v1 · 2012-10-04 · math.DS · math.CA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{P5QILQQL6IIANFIDFKIURCZQKC}

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	2026-05-18T03:44:03.896738Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7f6085c20bf2100695032a91488b30508d1d18609dd71484de0692962ee9d1f7

Aliases

arxiv: 1210.1334 · arxiv_version: 1210.1334v1 · doi: 10.48550/arxiv.1210.1334 · pith_short_12: P5QILQQL6IIA · pith_short_16: P5QILQQL6IIANFID · pith_short_8: P5QILQQL

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/P5QILQQL6IIANFIDFKIURCZQKC \
  | 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: 7f6085c20bf2100695032a91488b30508d1d18609dd71484de0692962ee9d1f7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ea1a7527442296e39770fd4e2c3ac2869ddfdfb3f97b63d152baac00804d8bad",
    "cross_cats_sorted": [
      "math.CA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DS",
    "submitted_at": "2012-10-04T08:39:12Z",
    "title_canon_sha256": "ddd1688a5de4a9379200cfd20028e96d6b80ec8bb4646a8ab0cfaea6f3042124"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1210.1334",
    "kind": "arxiv",
    "version": 1
  }
}