Pith Number

pith:DDL3RQJE

pith:2019:DDL3RQJE5I7XIVK4LWXXVUXOF5

not attested not anchored not stored refs pending

Unusual $^{209}$Bi NMR quadrupole effects in topological insulator Bi$_2$Se$_3$

Andreas P\"oppl, Grant V.M. Williams, J\"urgen Haase, Kazuo Kadowaki, Robin Guehne, Shen V. Chong, Vojt\v{e}ch Chlan

arxiv:1904.07938 v1 · 2019-04-16 · cond-mat.mtrl-sci

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DDL3RQJE5I7XIVK4LWXXVUXOF5}

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	2026-05-17T23:48:19.350821Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

18d7b8c124ea3f74555c5daf7ad2ee2f6e59f9178968c58605734a5f2de81a26

Aliases

arxiv: 1904.07938 · arxiv_version: 1904.07938v1 · doi: 10.48550/arxiv.1904.07938 · pith_short_12: DDL3RQJE5I7X · pith_short_16: DDL3RQJE5I7XIVK4 · pith_short_8: DDL3RQJE

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/DDL3RQJE5I7XIVK4LWXXVUXOF5 \
  | 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: 18d7b8c124ea3f74555c5daf7ad2ee2f6e59f9178968c58605734a5f2de81a26

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8873488bab527b6e384b765d00e1aa8c6d891b4060e91351e32bfbd2c5328ed4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.mtrl-sci",
    "submitted_at": "2019-04-16T19:22:48Z",
    "title_canon_sha256": "a3d275a0810a09b8adaded828085451ae421f268613a8825898223bdbb9b5611"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.07938",
    "kind": "arxiv",
    "version": 1
  }
}