Pith Number

pith:HUK3YNO6

pith:2009:HUK3YNO63X6A5IX6AB3UJ6PNWD

not attested not anchored not stored refs pending

On the mystery of the missing pie in graphene

Paola Giacconi, Roberto Soldati

arxiv:0906.2856 v2 · 2009-06-16 · cond-mat.mes-hall · hep-th

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HUK3YNO63X6A5IX6AB3UJ6PNWD}

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	2026-05-18T02:13:19.828801Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3d15bc35deddfc0ea2fe007744f9edb0c401d84acea8f64e1e001b6d73bce1f6

Aliases

arxiv: 0906.2856 · arxiv_version: 0906.2856v2 · doi: 10.48550/arxiv.0906.2856 · pith_short_12: HUK3YNO63X6A · pith_short_16: HUK3YNO63X6A5IX6 · pith_short_8: HUK3YNO6

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/HUK3YNO63X6A5IX6AB3UJ6PNWD \
  | 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: 3d15bc35deddfc0ea2fe007744f9edb0c401d84acea8f64e1e001b6d73bce1f6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "afc8dcf272b77879d11a9cfc4882b6de90af644aa5d7f9c0f33be081c8e35444",
    "cross_cats_sorted": [
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.mes-hall",
    "submitted_at": "2009-06-16T07:51:06Z",
    "title_canon_sha256": "a7104340793275f9f5fd621e1227a7a3927efa7b18ff33c9da21f744da116d83"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0906.2856",
    "kind": "arxiv",
    "version": 2
  }
}