Pith Number

pith:OMSIO6PN

pith:2016:OMSIO6PNV72OFNXI6OTA2IDJX5

not attested not anchored not stored refs pending

Herman's approach to quasi-periodic perturbations in the reversible KAM context 2

Mikhail B. Sevryuk

arxiv:1612.07653 v2 · 2016-12-22 · math.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OMSIO6PNV72OFNXI6OTA2IDJX5}

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	2026-05-18T00:29:39.394324Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

73248779edaff4e2b6e8f3a60d2069bf4b6e4cc0ab92cbf052265a59bf1ca8c1

Aliases

arxiv: 1612.07653 · arxiv_version: 1612.07653v2 · doi: 10.48550/arxiv.1612.07653 · pith_short_12: OMSIO6PNV72O · pith_short_16: OMSIO6PNV72OFNXI · pith_short_8: OMSIO6PN

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/OMSIO6PNV72OFNXI6OTA2IDJX5 \
  | 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: 73248779edaff4e2b6e8f3a60d2069bf4b6e4cc0ab92cbf052265a59bf1ca8c1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2272129989c165f61c82afae7100904fd6d0d9c65a32853327d8eb43454ce9f0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DS",
    "submitted_at": "2016-12-22T15:42:16Z",
    "title_canon_sha256": "dd0221c30b64ea2553dfdcf7a479335feea4a22c43a93d333794bb839cf5d74c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1612.07653",
    "kind": "arxiv",
    "version": 2
  }
}