Pith Number

pith:HG7IXYZN

pith:2017:HG7IXYZNMWS23PET67XFFVZRFR

not attested not anchored not stored refs pending

Positive solutions for second order boundary value problems with sign changing Green's functions

Alberto Cabada, Luc\'ia L\'opez-Somoza, Ricardo Engui\c{c}a

arxiv:1706.07395 v1 · 2017-06-22 · 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{HG7IXYZNMWS23PET67XFFVZRFR}

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	2026-05-18T00:41:51.847519Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

39be8be32d65a5adbc93f7ee52d7312c53db63643a12a2a00c952be5bbd43746

Aliases

arxiv: 1706.07395 · arxiv_version: 1706.07395v1 · doi: 10.48550/arxiv.1706.07395 · pith_short_12: HG7IXYZNMWS2 · pith_short_16: HG7IXYZNMWS23PET · pith_short_8: HG7IXYZN

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/HG7IXYZNMWS23PET67XFFVZRFR \
  | 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: 39be8be32d65a5adbc93f7ee52d7312c53db63643a12a2a00c952be5bbd43746

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "493ca7dbb4601bffcb4984989d297fc052e6e7d3022f0763098eafb9197bfe79",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CA",
    "submitted_at": "2017-06-22T16:53:17Z",
    "title_canon_sha256": "008806fb98c88ae946ecdb0d6a1f6a13eea81843d5f4438478ed595747c59510"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1706.07395",
    "kind": "arxiv",
    "version": 1
  }
}