Pith Number

pith:TY4PWMJN

pith:2015:TY4PWMJN5HHACSRJAWV5RG2IB7

not attested not anchored not stored refs pending

Stability results for second-order evolution equations with memory and switching time-delay

Cristina Pignotti

arxiv:1507.03391 v1 · 2015-07-13 · math.AP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{TY4PWMJN5HHACSRJAWV5RG2IB7}

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	2026-05-18T01:36:58.940284Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9e38fb312de9ce014a2905abd89b480ff36345848dd2d5c2736713234e285b96

Aliases

arxiv: 1507.03391 · arxiv_version: 1507.03391v1 · doi: 10.48550/arxiv.1507.03391 · pith_short_12: TY4PWMJN5HHA · pith_short_16: TY4PWMJN5HHACSRJ · pith_short_8: TY4PWMJN

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/TY4PWMJN5HHACSRJAWV5RG2IB7 \
  | 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: 9e38fb312de9ce014a2905abd89b480ff36345848dd2d5c2736713234e285b96

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7c3fd7454381ac44cc75142631da0ca2a2ed99666376f3fa9883b6507262ccdd",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2015-07-13T11:00:24Z",
    "title_canon_sha256": "be31fef0eca45b1ddb0597c287442e9f2c11642b3b3206e0dcb48515819b1b8b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1507.03391",
    "kind": "arxiv",
    "version": 1
  }
}