Pith Number

pith:WRY5IPTW

pith:2020:WRY5IPTWECTZ4T5B3ULZFR2PE4

not attested not anchored not stored refs pending

Non-trivial $t$-intersecting families for vector spaces

Benjian Lv, Kaishun Wang, Mengyu Cao, Sanming Zhou

arxiv:2007.11767 v1 · 2020-07-23 · 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{WRY5IPTWECTZ4T5B3ULZFR2PE4}

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	2026-07-05T01:21:40.181448Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b471d43e7620a79e4fa1dd1792c74f27267ffe2982c026d7f174753c49dc614e

Aliases

arxiv: 2007.11767 · arxiv_version: 2007.11767v1 · doi: 10.48550/arxiv.2007.11767 · pith_short_12: WRY5IPTWECTZ · pith_short_16: WRY5IPTWECTZ4T5B · pith_short_8: WRY5IPTW

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/WRY5IPTWECTZ4T5B3ULZFR2PE4 \
  | 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: b471d43e7620a79e4fa1dd1792c74f27267ffe2982c026d7f174753c49dc614e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "afd32d03d4f0577e3c475af9f34bfcdfce57999f5936dbcec158f43e03ddcea5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2020-07-23T03:14:30Z",
    "title_canon_sha256": "e27f108a08bdf3ca9d3c1a390a49ec434d7872ac1c6bb96925b1f84bd42443a9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2007.11767",
    "kind": "arxiv",
    "version": 1
  }
}