Pith Number

pith:MD5W2CY7

pith:2011:MD5W2CY7DB2JMUNTWPPRDOZTOH

not attested not anchored not stored refs pending

Z_2 Topological Insulators in Ultracold Atomic Gases

B. B\'eri, N. R. Cooper

arxiv:1105.1252 v2 · 2011-05-06 · cond-mat.quant-gas

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{MD5W2CY7DB2JMUNTWPPRDOZTOH}

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	2026-05-18T04:05:59.280503Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

60fb6d0b1f18749651b3b3df11bb3371ef9713fa83ade4f691eb7aca3f14ee1b

Aliases

arxiv: 1105.1252 · arxiv_version: 1105.1252v2 · doi: 10.48550/arxiv.1105.1252 · pith_short_12: MD5W2CY7DB2J · pith_short_16: MD5W2CY7DB2JMUNT · pith_short_8: MD5W2CY7

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/MD5W2CY7DB2JMUNTWPPRDOZTOH \
  | 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: 60fb6d0b1f18749651b3b3df11bb3371ef9713fa83ade4f691eb7aca3f14ee1b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8141379503971d49133ae04e1f181880021bf8431d9ce2973ec25127a3c6f697",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.quant-gas",
    "submitted_at": "2011-05-06T09:45:43Z",
    "title_canon_sha256": "0bc695e79f0cc832670c3d40bc1f02c041a7fc1dbfe30774c459af5d8776f7c7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1105.1252",
    "kind": "arxiv",
    "version": 2
  }
}