Pith Number

pith:Y5656OYW

pith:2011:Y5656OYW6KLYWOE4HR6HKAGV6I

not attested not anchored not stored refs pending

Existence of minimal and maximal solutions to first--order differential equations with state--dependent deviated arguments

Rodrigo L\'opez Pouso, Rub\'en Figueroa

arxiv:1104.5604 v1 · 2011-04-29 · 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{Y5656OYW6KLYWOE4HR6HKAGV6I}

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	2026-05-18T02:58:00.997665Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c77ddf3b16f2978b389c3c7c7500d5f207726090b75948c3b2dec655d173d0ce

Aliases

arxiv: 1104.5604 · arxiv_version: 1104.5604v1 · doi: 10.48550/arxiv.1104.5604 · pith_short_12: Y5656OYW6KLY · pith_short_16: Y5656OYW6KLYWOE4 · pith_short_8: Y5656OYW

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/Y5656OYW6KLYWOE4HR6HKAGV6I \
  | 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: c77ddf3b16f2978b389c3c7c7500d5f207726090b75948c3b2dec655d173d0ce

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "19ee06f305cc69a321fcf84dfac52664d7be2ab72658ce407883edb6d6f089be",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CA",
    "submitted_at": "2011-04-29T11:58:50Z",
    "title_canon_sha256": "9e5a52a166c4002663b6b014196807a39a30f06302e4b110f3015d33b77c8847"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1104.5604",
    "kind": "arxiv",
    "version": 1
  }
}