Pith Number

pith:HBE5D7RJ

pith:2018:HBE5D7RJQE2DKITCYXKLLANWC3

not attested not anchored not stored refs pending

On the continuity of solutions to doubly singular parabolic equations

Qifan Li

arxiv:1812.04864 v2 · 2018-12-12 · 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{HBE5D7RJQE2DKITCYXKLLANWC3}

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	2026-05-17T23:58:20.482943Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3849d1fe298134352262c5d4b581b616e7a39843f19a55a4c91c6686273f2934

Aliases

arxiv: 1812.04864 · arxiv_version: 1812.04864v2 · doi: 10.48550/arxiv.1812.04864 · pith_short_12: HBE5D7RJQE2D · pith_short_16: HBE5D7RJQE2DKITC · pith_short_8: HBE5D7RJ

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/HBE5D7RJQE2DKITCYXKLLANWC3 \
  | 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: 3849d1fe298134352262c5d4b581b616e7a39843f19a55a4c91c6686273f2934

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a587a9c21d46f403708bf7ce67f79ee6b66f7b6e17644fbb066af7fe8031ca45",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2018-12-12T09:42:32Z",
    "title_canon_sha256": "cedd837f87c75fd029732b5dac50f549e6011a32c9c865661453d2ab9cbc8439"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1812.04864",
    "kind": "arxiv",
    "version": 2
  }
}