Pith Number

pith:5JAGUNDF

pith:2009:5JAGUNDFHK33VSKCLRAVELSLZO

not attested not anchored not stored refs pending

Observation of an Electric-Field Induced Band Gap in Bilayer Graphene by Infrared Spectroscopy

Chun Hung Lui, Jie Shan, Kin Fai Mak, Tony F. Heinz

arxiv:0905.0923 v2 · 2009-05-06 · cond-mat.mes-hall · cond-mat.mtrl-sci

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	2026-05-18T02:13:46.941926Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ea406a34653ab7bac9425c41522e4bcb89fb4b0ff38b438a0b7984b60a434912

Aliases

arxiv: 0905.0923 · arxiv_version: 0905.0923v2 · doi: 10.48550/arxiv.0905.0923 · pith_short_12: 5JAGUNDFHK33 · pith_short_16: 5JAGUNDFHK33VSKC · pith_short_8: 5JAGUNDF

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/5JAGUNDFHK33VSKCLRAVELSLZO \
  | 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: ea406a34653ab7bac9425c41522e4bcb89fb4b0ff38b438a0b7984b60a434912

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "94c3a3d9f1755146d11f94942551ba02b9821c9b9d5ae330d34b74fc70fd0ce6",
    "cross_cats_sorted": [
      "cond-mat.mtrl-sci"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.mes-hall",
    "submitted_at": "2009-05-06T21:30:06Z",
    "title_canon_sha256": "741314048952f012f660e14fd999b4d09b7750ad4996456380cdd09a32a55f64"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0905.0923",
    "kind": "arxiv",
    "version": 2
  }
}