Pith Number

pith:52MWWAWM

pith:2019:52MWWAWMYE6SYSHJHXT4DHB275

not attested not anchored not stored refs pending

Observation of the Hopf Links and Hopf Fibration in a 2D topological Raman Lattice

Chang-Rui Yi, Jian-Wei Pan, Jin-Long Yu, Shuai Chen, Wei Sun, Xiao-Tian Xu

arxiv:1904.11656 v2 · 2019-04-26 · cond-mat.quant-gas · physics.atom-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{52MWWAWMYE6SYSHJHXT4DHB275}

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	2026-05-17T23:47:15.435537Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ee996b02ccc13d2c48e93de7c19c3aff72f9384dc28d985ea535c952971f4ae1

Aliases

arxiv: 1904.11656 · arxiv_version: 1904.11656v2 · doi: 10.48550/arxiv.1904.11656 · pith_short_12: 52MWWAWMYE6S · pith_short_16: 52MWWAWMYE6SYSHJ · pith_short_8: 52MWWAWM

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/52MWWAWMYE6SYSHJHXT4DHB275 \
  | 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: ee996b02ccc13d2c48e93de7c19c3aff72f9384dc28d985ea535c952971f4ae1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "32514faf9a8cbcc6481abbeeb6e19538daabe1eb4efc34ead58f9c75de49cead",
    "cross_cats_sorted": [
      "physics.atom-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.quant-gas",
    "submitted_at": "2019-04-26T02:38:01Z",
    "title_canon_sha256": "afc96293cab157f9241b5a64bec5167ca3b481903937ec85460c9d5d40c343cf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.11656",
    "kind": "arxiv",
    "version": 2
  }
}