Pith Number

pith:I7W6KAY4

pith:2012:I7W6KAY4NLHBK4HUT6AKP2C2PV

not attested not anchored not stored refs pending

Square-Root Finding Problem In Graphs, A Complete Dichotomy Theorem

Babak Farzad, Majid Karimi

arxiv:1210.7684 v1 · 2012-10-29 · cs.DM · 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{I7W6KAY4NLHBK4HUT6AKP2C2PV}

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	2026-05-18T03:42:09.090673Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

47ede5031c6ace1570f49f80a7e85a7d790f74e8d5d032de5d85c67b9a823964

Aliases

arxiv: 1210.7684 · arxiv_version: 1210.7684v1 · doi: 10.48550/arxiv.1210.7684 · pith_short_12: I7W6KAY4NLHB · pith_short_16: I7W6KAY4NLHBK4HU · pith_short_8: I7W6KAY4

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/I7W6KAY4NLHBK4HUT6AKP2C2PV \
  | 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: 47ede5031c6ace1570f49f80a7e85a7d790f74e8d5d032de5d85c67b9a823964

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "be2b61d52712bc6fc29e5086ee9dbd7d5940243c360b866e073d31b3568b80af",
    "cross_cats_sorted": [
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DM",
    "submitted_at": "2012-10-29T15:03:03Z",
    "title_canon_sha256": "97d0de0b4524a7609b8657b9aad296f36d396f2d4359acb7ff7d6fa083357d65"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1210.7684",
    "kind": "arxiv",
    "version": 1
  }
}