Pith Number

pith:N32WQWES

pith:2015:N32WQWESIFL5S4ONWZZF3QFCEY

not attested not anchored not stored refs pending

Double resonance for one-sided superlinear or singular nonlinearities

Andrea Sfecci

arxiv:1509.08653 v1 · 2015-09-29 · 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{N32WQWESIFL5S4ONWZZF3QFCEY}

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	2026-05-18T00:02:28.483944Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6ef56858924157d971cdb6725dc0a226149ece11138225a6e384c1653034ed3a

Aliases

arxiv: 1509.08653 · arxiv_version: 1509.08653v1 · doi: 10.48550/arxiv.1509.08653 · pith_short_12: N32WQWESIFL5 · pith_short_16: N32WQWESIFL5S4ON · pith_short_8: N32WQWES

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/N32WQWESIFL5S4ONWZZF3QFCEY \
  | 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: 6ef56858924157d971cdb6725dc0a226149ece11138225a6e384c1653034ed3a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0a4700ead0fb71b850806f3a87e58e5e522d8c4df319d9c52f2d196c639a49be",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CA",
    "submitted_at": "2015-09-29T09:14:04Z",
    "title_canon_sha256": "ed962fbc1c112fb417eb13a5445688b6cea1f8f4893affdacd281e0accd81085"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1509.08653",
    "kind": "arxiv",
    "version": 1
  }
}