Pith Number

pith:L6U4JFCC

pith:2011:L6U4JFCCLLK7FCPEDFMICOKYXC

not attested not anchored not stored refs pending

A note on the existence of an alternating sign on a spanning tree of graphs

Dongseok Kim, Jaeun Lee, Young Soo Kwon

arxiv:1106.0605 v1 · 2011-06-03 · math.CO · math.GT

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	2026-05-18T03:33:38.083444Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5fa9c494425ad5f289e41958813958b8b50acad02f0ccb0b957859f37c74eb09

Aliases

arxiv: 1106.0605 · arxiv_version: 1106.0605v1 · doi: 10.48550/arxiv.1106.0605 · pith_short_12: L6U4JFCCLLK7 · pith_short_16: L6U4JFCCLLK7FCPE · pith_short_8: L6U4JFCC

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/L6U4JFCCLLK7FCPEDFMICOKYXC \
  | 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: 5fa9c494425ad5f289e41958813958b8b50acad02f0ccb0b957859f37c74eb09

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e0b962b56afa141fff79cd6d6999b637136e63703455b7e5f2e7d5d64d02af3a",
    "cross_cats_sorted": [
      "math.GT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2011-06-03T10:27:23Z",
    "title_canon_sha256": "144a11f8cfb794373109c747af43d3559cd7328a7665e670601115c6a858fa80"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1106.0605",
    "kind": "arxiv",
    "version": 1
  }
}