Pith Number

pith:BQSQNWXZ

pith:2015:BQSQNWXZMXLEM3GDFWEKVTKLX5

not attested not anchored not stored refs pending

Experimental observation of Weyl points

Dexin Ye, John D. Joannopoulos, Liang Fu, Ling Lu, Lixin Ran, Marin Solja\v{c}i\'c, Zhiyu Wang

arxiv:1502.03438 v1 · 2015-02-11 · cond-mat.mtrl-sci · physics.optics

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BQSQNWXZMXLEM3GDFWEKVTKLX5}

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	2026-05-18T01:01:01.799105Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0c2506daf965d6466cc32d88aacd4bbf756e796ab3e5939a3001c412a14b9710

Aliases

arxiv: 1502.03438 · arxiv_version: 1502.03438v1 · doi: 10.48550/arxiv.1502.03438 · pith_short_12: BQSQNWXZMXLE · pith_short_16: BQSQNWXZMXLEM3GD · pith_short_8: BQSQNWXZ

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/BQSQNWXZMXLEM3GDFWEKVTKLX5 \
  | 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: 0c2506daf965d6466cc32d88aacd4bbf756e796ab3e5939a3001c412a14b9710

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "886221dc2bf5333aed9c8286cb0e795a94590095730cbe9b9c38c937567cd1fd",
    "cross_cats_sorted": [
      "physics.optics"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.mtrl-sci",
    "submitted_at": "2015-02-11T20:59:42Z",
    "title_canon_sha256": "9507abb45f1768df1e1f1d4e553e83cf92ff593b1141862f61899a40dc5d06e8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1502.03438",
    "kind": "arxiv",
    "version": 1
  }
}