Pith Number

pith:SC4ZQR2M

pith:2015:SC4ZQR2MDO4GF5I2NIGETXWFSA

not attested not anchored not stored refs pending

Uniqueness of nonnegative weak solution to $u^p\le(-\Delta)^\frac{\alpha}{2}u$ on $\mathbb R^N$

Jie Xiao, Yuzhao Wang

arxiv:1501.04842 v1 · 2015-01-20 · math.AP

Open paper page JSON Open Graph Bundle Merged state What is a Pith Number?

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	2026-05-18T02:29:02.135828Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

90b998474c1bb862f51a6a0c49dec590093890c5ddd3c89d2efe58200797bceb

Aliases

arxiv: 1501.04842 · arxiv_version: 1501.04842v1 · doi: 10.48550/arxiv.1501.04842 · pith_short_12: SC4ZQR2MDO4G · pith_short_16: SC4ZQR2MDO4GF5I2 · pith_short_8: SC4ZQR2M

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/SC4ZQR2MDO4GF5I2NIGETXWFSA \
  | 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: 90b998474c1bb862f51a6a0c49dec590093890c5ddd3c89d2efe58200797bceb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6e2b3fe75e7cf76835a21581731525667fc8181708f8f93fa266aff5ba4a6fef",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2015-01-20T15:14:21Z",
    "title_canon_sha256": "9a7a36be57b6faffda6eb6a5ba862ed47876e9266b2699cb44de6f71ed480415"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1501.04842",
    "kind": "arxiv",
    "version": 1
  }
}