Pith Number

pith:4NRTIWC5

pith:2016:4NRTIWC5WDQZIDVFZUT2HQ2XKO

not attested not anchored not stored refs pending

On the regularity of the Non-dynamic Parabolic Fractional Obstacle Problem

Emmanouil Milakis, Ioannis Athanasopoulos, Luis Caffarelli

arxiv:1612.09092 v1 · 2016-12-29 · 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{4NRTIWC5WDQZIDVFZUT2HQ2XKO}

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	2026-05-18T00:53:46.461867Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e36334585db0e1940ea5cd27a3c357538161d9ba8f1702353a65ed9f3335379a

Aliases

arxiv: 1612.09092 · arxiv_version: 1612.09092v1 · doi: 10.48550/arxiv.1612.09092 · pith_short_12: 4NRTIWC5WDQZ · pith_short_16: 4NRTIWC5WDQZIDVF · pith_short_8: 4NRTIWC5

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/4NRTIWC5WDQZIDVFZUT2HQ2XKO \
  | 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: e36334585db0e1940ea5cd27a3c357538161d9ba8f1702353a65ed9f3335379a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5356923d1c54bfa9bcd1723256b641221d0baf105aa532946bf712bf8ace9655",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2016-12-29T10:52:12Z",
    "title_canon_sha256": "5b300ada22d8fa52465d8f04bb8937d33ceae7e656eeeadc599e465aeb9fc0c4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1612.09092",
    "kind": "arxiv",
    "version": 1
  }
}