Pith Number

pith:G6BPZWO4

pith:2015:G6BPZWO4CK6ASLGFJ7DF7F6QH4

not attested not anchored not stored refs pending

A Dichotomy Theorem for Circular Colouring Reconfiguration

Benjamin Moore, Jonathan A. Noel, Richard C. Brewster, Sean McGuinness

arxiv:1508.05573 v2 · 2015-08-23 · math.CO · cs.CC · cs.DM

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	2026-05-18T01:17:11.596769Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3782fcd9dc12bc092cc54fc65f97d03f181a7869bc893820dbd15315de7b4f7e

Aliases

arxiv: 1508.05573 · arxiv_version: 1508.05573v2 · doi: 10.48550/arxiv.1508.05573 · pith_short_12: G6BPZWO4CK6A · pith_short_16: G6BPZWO4CK6ASLGF · pith_short_8: G6BPZWO4

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/G6BPZWO4CK6ASLGFJ7DF7F6QH4 \
  | 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: 3782fcd9dc12bc092cc54fc65f97d03f181a7869bc893820dbd15315de7b4f7e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3ab5ffd3bcd313816f35ee8e92c362245a6771943e88e32502c6ce631dff4fa4",
    "cross_cats_sorted": [
      "cs.CC",
      "cs.DM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2015-08-23T07:51:45Z",
    "title_canon_sha256": "82c362cf4887a6815adfe2636dc3342ac892e4cfc5b97e87f25066e487bab106"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1508.05573",
    "kind": "arxiv",
    "version": 2
  }
}