Pith Number

pith:VRSAOLKS

pith:2013:VRSAOLKSGTLJXMLBEHT2JDRA37

not attested not anchored not stored refs pending

Hopf Insulators and Their Topologically Protected Surface States

Chao Shen, Dong-Ling Deng, Lu-Ming Duan, Sheng-Tao Wang

arxiv:1307.7206 v2 · 2013-07-27 · cond-mat.mes-hall

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	2026-05-18T03:06:54.706177Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ac64072d5234d69bb16121e7a48e20dfc95d053770654e4998bcb1287fe9fa7e

Aliases

arxiv: 1307.7206 · arxiv_version: 1307.7206v2 · doi: 10.48550/arxiv.1307.7206 · pith_short_12: VRSAOLKSGTLJ · pith_short_16: VRSAOLKSGTLJXMLB · pith_short_8: VRSAOLKS

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/VRSAOLKSGTLJXMLBEHT2JDRA37 \
  | 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: ac64072d5234d69bb16121e7a48e20dfc95d053770654e4998bcb1287fe9fa7e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5cca6faf564d7502d03696c830a91f86d5b7992988935a18430d033129853c0a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.mes-hall",
    "submitted_at": "2013-07-27T02:17:42Z",
    "title_canon_sha256": "7c987468660cf09a7e5a6de0327684e15242a529b306a227d09875024fa3858d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1307.7206",
    "kind": "arxiv",
    "version": 2
  }
}