Pith Number

pith:J6HT43GS

pith:2013:J6HT43GS5IFBWPTX65VITORZNA

not attested not anchored not stored refs pending

Lifespan of smooth solutions for timelike extremal surface equation in de Sitter spacetime

Chang-Hua Wei, De-Xing Kong

arxiv:1311.3459 v1 · 2013-11-14 · 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{J6HT43GS5IFBWPTX65VITORZNA}

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	2026-05-18T03:07:11.467904Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4f8f3e6cd2ea0a1b3e77f76a89ba39680f1e86f209b99199bc002463ea0b68a5

Aliases

arxiv: 1311.3459 · arxiv_version: 1311.3459v1 · doi: 10.48550/arxiv.1311.3459 · pith_short_12: J6HT43GS5IFB · pith_short_16: J6HT43GS5IFBWPTX · pith_short_8: J6HT43GS

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/J6HT43GS5IFBWPTX65VITORZNA \
  | 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: 4f8f3e6cd2ea0a1b3e77f76a89ba39680f1e86f209b99199bc002463ea0b68a5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "41fe2f0804a11e3378622d3d402dce1f83f0bb249312c0a1a3990bcf5d657ace",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2013-11-14T11:23:30Z",
    "title_canon_sha256": "81c1373291bc8ca1b2fb8901d9db3817ff603fdbdf5f2e481325c08f396e7714"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1311.3459",
    "kind": "arxiv",
    "version": 1
  }
}