Pith Number

pith:BQRBBKA2

pith:2014:BQRBBKA2JFHZ6HLJFQ6UI456US

not attested not anchored not stored refs pending

A hitchhiker's guide to Khovanov homology

Paul Turner

arxiv:1409.6442 v1 · 2014-09-23 · math.GT · math.AT · math.QA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BQRBBKA2JFHZ6HLJFQ6UI456US}

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	2026-05-18T02:42:07.129367Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0c2210a81a494f9f1d692c3d4473bea491fef1b82f6cf383540643b049e5762c

Aliases

arxiv: 1409.6442 · arxiv_version: 1409.6442v1 · doi: 10.48550/arxiv.1409.6442 · pith_short_12: BQRBBKA2JFHZ · pith_short_16: BQRBBKA2JFHZ6HLJ · pith_short_8: BQRBBKA2

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/BQRBBKA2JFHZ6HLJFQ6UI456US \
  | 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: 0c2210a81a494f9f1d692c3d4473bea491fef1b82f6cf383540643b049e5762c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "58a75eb98ee74563deb2a059b6934f9f666a39def77f33945b6ea790747609fc",
    "cross_cats_sorted": [
      "math.AT",
      "math.QA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GT",
    "submitted_at": "2014-09-23T08:18:31Z",
    "title_canon_sha256": "3217a956f5f8b252b8df2b9b8b1500c44002cbf8c326368524f1210a462e5ac2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1409.6442",
    "kind": "arxiv",
    "version": 1
  }
}