Pith Number

pith:EG2DXQER

pith:2013:EG2DXQEREWKWFQ2MSDJRVIR6MW

not attested not anchored not stored refs pending

Universal orderability of Legendrian isotopy classes

Stefan Nemirovski, Vladimir Chernov

arxiv:1307.5694 v3 · 2013-07-22 · math.SG · gr-qc

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EG2DXQEREWKWFQ2MSDJRVIR6MW}

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	2026-05-18T00:53:12.754596Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

21b43bc091259562c34c90d31aa23e659c0ff7876f1a6b1c62e4d8e4204b3820

Aliases

arxiv: 1307.5694 · arxiv_version: 1307.5694v3 · doi: 10.48550/arxiv.1307.5694 · pith_short_12: EG2DXQEREWKW · pith_short_16: EG2DXQEREWKWFQ2M · pith_short_8: EG2DXQER

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/EG2DXQEREWKWFQ2MSDJRVIR6MW \
  | 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: 21b43bc091259562c34c90d31aa23e659c0ff7876f1a6b1c62e4d8e4204b3820

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b031facde391313c846f0195c25bab9e81642725ca2e8986dca4bffc756fbe32",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.SG",
    "submitted_at": "2013-07-22T13:13:27Z",
    "title_canon_sha256": "2872eba85ca48da5eb74cdc6b8ee9306a978224afa3a71a52d1f84d5355a9371"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1307.5694",
    "kind": "arxiv",
    "version": 3
  }
}