Pith Number

pith:HHXSN76L

pith:2016:HHXSN76LFRL7C4LFV2C2CFRF3D

not attested not anchored not stored refs pending

Delta-matroids and Vassiliev invariants

Sergey Lando, Vyacheslav Zhukov

arxiv:1602.00027 v1 · 2016-01-29 · math.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HHXSN76LFRL7C4LFV2C2CFRF3D}

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	2026-05-18T01:21:36.478358Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

39ef26ffcb2c57f17165ae85a11625d8ef91f75fdefc79681cb2263618ac54be

Aliases

arxiv: 1602.00027 · arxiv_version: 1602.00027v1 · doi: 10.48550/arxiv.1602.00027 · pith_short_12: HHXSN76LFRL7 · pith_short_16: HHXSN76LFRL7C4LF · pith_short_8: HHXSN76L

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/HHXSN76LFRL7C4LFV2C2CFRF3D \
  | 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: 39ef26ffcb2c57f17165ae85a11625d8ef91f75fdefc79681cb2263618ac54be

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "852bfa8eca471c02ed2f6c9acc2fd6a080277ba4b6aa536e42391c3fcb635eee",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2016-01-29T22:28:04Z",
    "title_canon_sha256": "0e8ab64fe8daba3b87ae48281521664ad5a1b97698f1eb2b6f96c76002e07774"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1602.00027",
    "kind": "arxiv",
    "version": 1
  }
}