Pith Number

pith:B54FYSKF

pith:2018:B54FYSKFB2EW5UZP2HITFGL4MK

not attested not anchored not stored refs pending

Biquandle (co)homology and handlebody-links

Atsushi Ishii, Jieon Kim, Kanako Oshiro, Masahide Iwakiri, Seiichi Kamada, Shosaku Matsuzaki

arxiv:1801.07602 v1 · 2018-01-22 · math.GT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{B54FYSKFB2EW5UZP2HITFGL4MK}

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	2026-05-18T00:25:12.454047Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0f785c49450e896ed32fd1d132997c6296aa62912cf73482303833f9d6165fad

Aliases

arxiv: 1801.07602 · arxiv_version: 1801.07602v1 · doi: 10.48550/arxiv.1801.07602 · pith_short_12: B54FYSKFB2EW · pith_short_16: B54FYSKFB2EW5UZP · pith_short_8: B54FYSKF

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/B54FYSKFB2EW5UZP2HITFGL4MK \
  | 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: 0f785c49450e896ed32fd1d132997c6296aa62912cf73482303833f9d6165fad

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "879c14ad5f77b976970016e3d3290fd03261e4a03d047a214951e874f8087758",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GT",
    "submitted_at": "2018-01-22T12:43:32Z",
    "title_canon_sha256": "a2c270811b0fd241f139b5377628ddedf300648748d2977d84bae89da58ad8f5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1801.07602",
    "kind": "arxiv",
    "version": 1
  }
}