Pith Number

pith:Z2CMU2PD

pith:2015:Z2CMU2PDNOHLCAB53YEFP3SKOO

not attested not anchored not stored refs pending

Oblique derivative problem for non-divergence parabolic equations with discontinuous in time coefficients in a wedge

Alexander Nazarov, Vladimir Kozlov

arxiv:1507.08390 v1 · 2015-07-30 · 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{Z2CMU2PDNOHLCAB53YEFP3SKOO}

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	2026-05-18T01:36:06.591111Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ce84ca69e36b8eb1003dde0857ee4a739b117a282d92cab1301c8603cce937db

Aliases

arxiv: 1507.08390 · arxiv_version: 1507.08390v1 · doi: 10.48550/arxiv.1507.08390 · pith_short_12: Z2CMU2PDNOHL · pith_short_16: Z2CMU2PDNOHLCAB5 · pith_short_8: Z2CMU2PD

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/Z2CMU2PDNOHLCAB53YEFP3SKOO \
  | 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: ce84ca69e36b8eb1003dde0857ee4a739b117a282d92cab1301c8603cce937db

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6711b8fde2b59156eb1d33d1dc56ff37069aedf38b49d698c838c3540966fdd4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2015-07-30T06:16:56Z",
    "title_canon_sha256": "eb92d059187449f67d40a4e0f3ea8e2b1a1dc7667484179fc08898264e32efc4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1507.08390",
    "kind": "arxiv",
    "version": 1
  }
}