Pith Number

pith:B5FEQS4D

pith:2011:B5FEQS4DVXB5M73RIR6PHXYCJP

not attested not anchored not stored refs pending

KAM theory for lower dimensional tori within the reversible context 2

Mikhail B. Sevryuk

arxiv:1108.5975 v1 · 2011-08-30 · 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{B5FEQS4DVXB5M73RIR6PHXYCJP}

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	2026-05-18T03:56:10.656030Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0f4a484b83adc3d67f71447cf3df024be8d46d5fbabc0389f335bd285a8a84c0

Aliases

arxiv: 1108.5975 · arxiv_version: 1108.5975v1 · doi: 10.48550/arxiv.1108.5975 · pith_short_12: B5FEQS4DVXB5 · pith_short_16: B5FEQS4DVXB5M73R · pith_short_8: B5FEQS4D

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/B5FEQS4DVXB5M73RIR6PHXYCJP \
  | 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: 0f4a484b83adc3d67f71447cf3df024be8d46d5fbabc0389f335bd285a8a84c0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "92282db1af51bb447bd99db62efc9952ce82fd13dc9f9bcb9f4afae4e3b8ce28",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DS",
    "submitted_at": "2011-08-30T15:06:00Z",
    "title_canon_sha256": "9e06e92ce21659507f1330b9138cb5ee252e2e25a33897b5155280094e338e2a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1108.5975",
    "kind": "arxiv",
    "version": 1
  }
}