Pith Number

pith:U3KWAWF4

pith:2017:U3KWAWF4BBVDW6O5MBWG2A6J3T

not attested not anchored not stored refs pending

Characterization of constant sign Green's function of a two point boundary value problem by means of spectral theory

Alberto Cabada, Lorena Saavedra

arxiv:1704.00644 v1 · 2017-04-03 · 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{U3KWAWF4BBVDW6O5MBWG2A6J3T}

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	2026-05-18T00:47:21.752157Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a6d56058bc086a3b79dd606c6d03c9dcd11c829899519602f2096ed56d3caade

Aliases

arxiv: 1704.00644 · arxiv_version: 1704.00644v1 · doi: 10.48550/arxiv.1704.00644 · pith_short_12: U3KWAWF4BBVD · pith_short_16: U3KWAWF4BBVDW6O5 · pith_short_8: U3KWAWF4

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/U3KWAWF4BBVDW6O5MBWG2A6J3T \
  | 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: a6d56058bc086a3b79dd606c6d03c9dcd11c829899519602f2096ed56d3caade

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "75c3edab58bd6c7de95b5ccab4138e1996956202962873a95150666bc541d5a7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CA",
    "submitted_at": "2017-04-03T15:36:45Z",
    "title_canon_sha256": "bedecd72e3168110754bc393bfcb99174cff9482c6c57c5e0ae8eebdbe8004f8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1704.00644",
    "kind": "arxiv",
    "version": 1
  }
}