Pith Number

pith:OI53HPOO

pith:2016:OI53HPOOLEFQRDSOVQN5JT24OI

not attested not anchored not stored refs pending

Direct experimental evidence of pi magnetism of a single atomic vacancy in graphene

Jia-Bin Qiao, Lin He, Long-Jin Yin, Si-Yu Li, Wen-Tian Li, Wen-Xiao Wang, Yu Zhang

arxiv:1604.06542 v1 · 2016-04-22 · cond-mat.mtrl-sci · cond-mat.mes-hall

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OI53HPOOLEFQRDSOVQN5JT24OI}

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	2026-05-18T00:51:01.338368Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

723bb3bdce590b088e4eac1bd4cf5c7215d22d39eb80e0eb9cf79ab5b0bc3c38

Aliases

arxiv: 1604.06542 · arxiv_version: 1604.06542v1 · doi: 10.48550/arxiv.1604.06542 · pith_short_12: OI53HPOOLEFQ · pith_short_16: OI53HPOOLEFQRDSO · pith_short_8: OI53HPOO

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/OI53HPOOLEFQRDSOVQN5JT24OI \
  | 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: 723bb3bdce590b088e4eac1bd4cf5c7215d22d39eb80e0eb9cf79ab5b0bc3c38

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5082f166d74a6210a9382778cd2f7adc8f75c66500b06deb51633b29ab4abd07",
    "cross_cats_sorted": [
      "cond-mat.mes-hall"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.mtrl-sci",
    "submitted_at": "2016-04-22T05:53:13Z",
    "title_canon_sha256": "3dd872a6d09b4c36cdc959fa1531b7bb9d24a3cb5461ed0e5271c70bd23e2e6c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1604.06542",
    "kind": "arxiv",
    "version": 1
  }
}