Pith Number

pith:IZVHCTTU

pith:2018:IZVHCTTU3HA2KDQEOAMDCMHBL5

not attested not anchored not stored refs pending

Induced subgraphs with many repeated degrees

Raphael Yuster, Yair Caro

arxiv:1811.07221 v1 · 2018-11-17 · math.CO

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

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	2026-05-18T00:00:28.606724Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

466a714e74d9c1a50e0470183130e15f7a39c78d41b35a629ebb4ba48e54211e

Aliases

arxiv: 1811.07221 · arxiv_version: 1811.07221v1 · doi: 10.48550/arxiv.1811.07221 · pith_short_12: IZVHCTTU3HA2 · pith_short_16: IZVHCTTU3HA2KDQE · pith_short_8: IZVHCTTU

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/IZVHCTTU3HA2KDQEOAMDCMHBL5 \
  | 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: 466a714e74d9c1a50e0470183130e15f7a39c78d41b35a629ebb4ba48e54211e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "631b01b30db5a10f36667fb3b960da91bf6518ec60f9c5c28c62eff9a01498f3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2018-11-17T21:08:01Z",
    "title_canon_sha256": "cff34d1df2e18836d17d28a2342e4178fb6d1f48adc1f14cb9c64329fbacecaa"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1811.07221",
    "kind": "arxiv",
    "version": 1
  }
}