Pith Number

pith:ZGCBIJKY

pith:2012:ZGCBIJKYKBEA6733YADK3SEJPL

not attested not anchored not stored refs pending

Existence of three solutions for a first-order problem with nonlinear non-local boundary conditions

Douglas R. Anderson

arxiv:1207.5039 v1 · 2012-07-20 · 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{ZGCBIJKYKBEA6733YADK3SEJPL}

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	2026-05-18T03:50:34.483160Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c98414255850480f7f7bc006adc8897af2895b5e86b486ac705b300a3028be8d

Aliases

arxiv: 1207.5039 · arxiv_version: 1207.5039v1 · doi: 10.48550/arxiv.1207.5039 · pith_short_12: ZGCBIJKYKBEA · pith_short_16: ZGCBIJKYKBEA6733 · pith_short_8: ZGCBIJKY

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/ZGCBIJKYKBEA6733YADK3SEJPL \
  | 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: c98414255850480f7f7bc006adc8897af2895b5e86b486ac705b300a3028be8d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e7bd66388d588ca410f9e5e013cd2424bdf33dd4e1953fd65ceea20b57add5ce",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-sa/3.0/",
    "primary_cat": "math.CA",
    "submitted_at": "2012-07-20T19:56:40Z",
    "title_canon_sha256": "c1b6adfa64531e2e2cf7e8fc7c0b997a04f8fcc161fbc7ffc533bb527390660e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1207.5039",
    "kind": "arxiv",
    "version": 1
  }
}