Pith Number

pith:BTUQ7V3F

pith:2005:BTUQ7V3FYOMDR57XF52LBOD3E5

not attested not anchored not stored refs pending

Experimental Observation of Quantum Hall Effect and Berry's Phase in Graphene

Horst L. Stormer, Philip Kim, Yan-Wen Tan, Yuanbo Zhang

arxiv:cond-mat/0509355 v1 · 2005-09-14 · cond-mat.mes-hall · cond-mat.str-el

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BTUQ7V3FYOMDR57XF52LBOD3E5}

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	2026-07-04T16:54:36.830901Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0ce90fd765c39838f7f72f74b0b87b277738506a772cf6e6cd9cb1eb0bc7b709

Aliases

arxiv: cond-mat/0509355 · arxiv_version: cond-mat/0509355v1 · doi: 10.48550/arxiv.cond-mat/0509355 · pith_short_12: BTUQ7V3FYOMD · pith_short_16: BTUQ7V3FYOMDR57X · pith_short_8: BTUQ7V3F

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/BTUQ7V3FYOMDR57XF52LBOD3E5 \
  | 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: 0ce90fd765c39838f7f72f74b0b87b277738506a772cf6e6cd9cb1eb0bc7b709

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1563470d4a31c0a06917e9687f7bd4d58bdb76190fd3cc22cbaab84e825872a6",
    "cross_cats_sorted": [
      "cond-mat.str-el"
    ],
    "license": "",
    "primary_cat": "cond-mat.mes-hall",
    "submitted_at": "2005-09-14T05:13:11Z",
    "title_canon_sha256": "b65a2836589569530dadc3f4933653e9b469e47e5bc150b6d962ee85c58617bf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "cond-mat/0509355",
    "kind": "arxiv",
    "version": 1
  }
}