Pith Number

pith:PLRPSF5O

pith:2017:PLRPSF5OYI46WH36FL73BLDHMD

not attested not anchored not stored refs pending

Existence and convexity of local solutions to degenerate hessian equations

Chao-Jiang Xu, Guji Tian

arxiv:1708.04794 v2 · 2017-08-16 · 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{PLRPSF5OYI46WH36FL73BLDHMD}

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	2026-05-18T00:35:15.985126Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7ae2f917aec239eb1f7e2affb0ac6760f0d2abfe3b33199489257f2caa5ae2f4

Aliases

arxiv: 1708.04794 · arxiv_version: 1708.04794v2 · doi: 10.48550/arxiv.1708.04794 · pith_short_12: PLRPSF5OYI46 · pith_short_16: PLRPSF5OYI46WH36 · pith_short_8: PLRPSF5O

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/PLRPSF5OYI46WH36FL73BLDHMD \
  | 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: 7ae2f917aec239eb1f7e2affb0ac6760f0d2abfe3b33199489257f2caa5ae2f4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1a647160d7a69c6d6dfb192aaa214daece7da184b301551324a34ee38f0400b7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2017-08-16T07:42:24Z",
    "title_canon_sha256": "a6a070031c1c9339973f5d4788507ffc862549aada8f9e2cff40888b296d7896"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1708.04794",
    "kind": "arxiv",
    "version": 2
  }
}