Pith Number

pith:2G4MNAWC

pith:2017:2G4MNAWCW3H3Y76VGOA5RDXRAJ

not attested not anchored not stored refs pending

Three positive solutions to an indefinite Neumann problem: a shooting method

Elisa Sovrano, Guglielmo Feltrin

arxiv:1706.02880 v1 · 2017-06-09 · 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{2G4MNAWCW3H3Y76VGOA5RDXRAJ}

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	2026-05-18T00:42:40.706272Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d1b8c682c2b6cfbc7fd53381d88ef1025f16417ad3247904f87101d49b20202f

Aliases

arxiv: 1706.02880 · arxiv_version: 1706.02880v1 · doi: 10.48550/arxiv.1706.02880 · pith_short_12: 2G4MNAWCW3H3 · pith_short_16: 2G4MNAWCW3H3Y76V · pith_short_8: 2G4MNAWC

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/2G4MNAWCW3H3Y76VGOA5RDXRAJ \
  | 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: d1b8c682c2b6cfbc7fd53381d88ef1025f16417ad3247904f87101d49b20202f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5bd214ac0dff153aceb3cc829d482089085156c3c4c3db0d609b1d7eaab16f6c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CA",
    "submitted_at": "2017-06-09T10:00:02Z",
    "title_canon_sha256": "e68c3db345cbfe7658381c341ffe43bc837e128655d85a76d7b2baa7293ae187"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1706.02880",
    "kind": "arxiv",
    "version": 1
  }
}