Pith Number

pith:BC4RA3ZX

pith:2011:BC4RA3ZXNC7PSMACDWEA7XJEVT

not attested not anchored not stored refs pending

Rainbow connections of graphs -- A survey

Xueliang Li, Yuefang Sun

arxiv:1101.5747 v2 · 2011-01-30 · math.CO · cs.DM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BC4RA3ZXNC7PSMACDWEA7XJEVT}

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	2026-05-18T04:30:13.390124Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

08b9106f3768bef930021d880fdd24acd0b12c993efcdfc8153e4430f0dc99e4

Aliases

arxiv: 1101.5747 · arxiv_version: 1101.5747v2 · doi: 10.48550/arxiv.1101.5747 · pith_short_12: BC4RA3ZXNC7P · pith_short_16: BC4RA3ZXNC7PSMAC · pith_short_8: BC4RA3ZX

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/BC4RA3ZXNC7PSMACDWEA7XJEVT \
  | 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: 08b9106f3768bef930021d880fdd24acd0b12c993efcdfc8153e4430f0dc99e4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f56ae9d02f07d0941ca900a2b3914a92f54cf9dcb14afec0d22473751f21c435",
    "cross_cats_sorted": [
      "cs.DM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2011-01-30T06:18:22Z",
    "title_canon_sha256": "919e969d7c62f07d9a3044190e30e875036e3d2ce0cb40ad78dec96a1d26d863"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1101.5747",
    "kind": "arxiv",
    "version": 2
  }
}