Pith Number

pith:V3BUFPTA

pith:2017:V3BUFPTAKYPCOUVYVK32YQV56H

not attested not anchored not stored refs pending

Final value problems for parabolic differential equations and their well-posedness

Ann-Eva Christensen, Jon Johnsen

arxiv:1707.02136 v2 · 2017-07-07 · 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{V3BUFPTAKYPCOUVYVK32YQV56H}

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	2026-05-18T00:16:08.929210Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

aec342be60561e2752b8aab7ac42bdf1e9799bd7a11e9a1bcc2602691fb4cf44

Aliases

arxiv: 1707.02136 · arxiv_version: 1707.02136v2 · doi: 10.48550/arxiv.1707.02136 · pith_short_12: V3BUFPTAKYPC · pith_short_16: V3BUFPTAKYPCOUVY · pith_short_8: V3BUFPTA

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/V3BUFPTAKYPCOUVYVK32YQV56H \
  | 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: aec342be60561e2752b8aab7ac42bdf1e9799bd7a11e9a1bcc2602691fb4cf44

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a3af0cad80718806137a98d1834319faaf10b15f876e1188c8bde34aff78bf8d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2017-07-07T12:05:42Z",
    "title_canon_sha256": "050e4cf8a9a0f3dd36ffd02f93ef985c3c21c49ee431cd8602ca5b1f81a221be"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1707.02136",
    "kind": "arxiv",
    "version": 2
  }
}