Pith Number

pith:GRHTJFCS

pith:2014:GRHTJFCS5J2V77FH4Y67IKN4RI

not attested not anchored not stored refs pending

On Legendrian foliations in contact manifolds II: Deformation theory

Yang Huang

arxiv:1411.6309 v1 · 2014-11-23 · math.SG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{GRHTJFCS5J2V77FH4Y67IKN4RI}

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	2026-05-18T02:33:00.313861Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

344f349452ea755ffca7e63df429bc8a016f667ef4649241f9ccf4bb30be71db

Aliases

arxiv: 1411.6309 · arxiv_version: 1411.6309v1 · doi: 10.48550/arxiv.1411.6309 · pith_short_12: GRHTJFCS5J2V · pith_short_16: GRHTJFCS5J2V77FH · pith_short_8: GRHTJFCS

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/GRHTJFCS5J2V77FH4Y67IKN4RI \
  | 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: 344f349452ea755ffca7e63df429bc8a016f667ef4649241f9ccf4bb30be71db

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1b612ba7501092aa11a5ce09efe66e512b703d8a8bd191d1824613905db34bbc",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.SG",
    "submitted_at": "2014-11-23T22:13:08Z",
    "title_canon_sha256": "4c9a5e8bab78efbfd940efd1e81e1a67c23676abe5e0b88ba2e070fed4ca2b8b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1411.6309",
    "kind": "arxiv",
    "version": 1
  }
}