Pith Number

pith:QOP7NI63

pith:2021:QOP7NI63KBSRPVUMNRVLEONNB7

not attested not anchored not stored refs pending

Observation of Moir\'e Flat Bands in Sonic Crystals

Chunyin Qiu, Fengcheng Wu, Qicheng Zhang, Tingzhi Liu, Xingjian Zhang, Xiying Fan

arxiv:2112.13471 v1 · 2021-12-27 · cond-mat.mtrl-sci · cond-mat.str-el · physics.app-ph · physics.class-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QOP7NI63KBSRPVUMNRVLEONNB7}

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	2026-07-05T03:43:53.805659Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

839ff6a3db506517d68c6c6ab239ad0fc5d33960355415c83fa70c3aa4a30f59

Aliases

arxiv: 2112.13471 · arxiv_version: 2112.13471v1 · doi: 10.48550/arxiv.2112.13471 · pith_short_12: QOP7NI63KBSR · pith_short_16: QOP7NI63KBSRPVUM · pith_short_8: QOP7NI63

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/QOP7NI63KBSRPVUMNRVLEONNB7 \
  | 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: 839ff6a3db506517d68c6c6ab239ad0fc5d33960355415c83fa70c3aa4a30f59

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "77f40cf7f3bbed1853dba029798000c587991227b7448ed381639706b7900d7f",
    "cross_cats_sorted": [
      "cond-mat.str-el",
      "physics.app-ph",
      "physics.class-ph"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cond-mat.mtrl-sci",
    "submitted_at": "2021-12-27T01:03:40Z",
    "title_canon_sha256": "13e76764ed8814136a5ab63c31841dd13e6dd6a72251a09f456b999dbedc9969"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2112.13471",
    "kind": "arxiv",
    "version": 1
  }
}