Pith Number

pith:RWUTB2NP

pith:2021:RWUTB2NPH2CEFE6SMWR5MDFPH3

not attested not anchored not stored refs pending

Khovanov-type homologies of null homologous links in $\mathbb{RP}^3$

Daren Chen

arxiv:2104.04779 v1 · 2021-04-10 · 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{RWUTB2NPH2CEFE6SMWR5MDFPH3}

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.

Cited by

1 paper in Pith

Link in $\mathbb{R}\mathbb{P}^3$ and the Topological Vertex

Receipt and verification

First computed	2026-07-05T02:30:47.586838Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8da930e9af3e844293d265a3d60caf3ef6b69b306a548bd3200bece0b6714088

Aliases

arxiv: 2104.04779 · arxiv_version: 2104.04779v1 · doi: 10.48550/arxiv.2104.04779 · pith_short_12: RWUTB2NPH2CE · pith_short_16: RWUTB2NPH2CEFE6S · pith_short_8: RWUTB2NP

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/RWUTB2NPH2CEFE6SMWR5MDFPH3 \
  | 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: 8da930e9af3e844293d265a3d60caf3ef6b69b306a548bd3200bece0b6714088

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d561cc9b79eb5c7cf06bc4fd8c38257e59a07d24d13cee50b0d04ed9e94e3de2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GT",
    "submitted_at": "2021-04-10T14:36:17Z",
    "title_canon_sha256": "c0a1bc7ffab0a83e3be0ecc6bb8bc49866b8c2f45de22fd7cfeee3991918b40a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2104.04779",
    "kind": "arxiv",
    "version": 1
  }
}