Pith Number

pith:LJU3QR3D

pith:2019:LJU3QR3D36IGI5D7L325TOHPRT

not attested not anchored not stored refs pending

Ferromagnetism and superconductivity in twisted double bilayer graphene

Fengcheng Wu, Sankar Das Sarma

arxiv:1906.07302 v2 · 2019-06-17 · cond-mat.str-el

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{LJU3QR3D36IGI5D7L325TOHPRT}

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	2026-07-05T00:59:21.890171Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5a69b84763df9064747f5ef5d9b8ef8cd2e61d003626886bbc66a520ba137dab

Aliases

arxiv: 1906.07302 · arxiv_version: 1906.07302v2 · doi: 10.48550/arxiv.1906.07302 · pith_short_12: LJU3QR3D36IG · pith_short_16: LJU3QR3D36IGI5D7 · pith_short_8: LJU3QR3D

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/LJU3QR3D36IGI5D7L325TOHPRT \
  | 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: 5a69b84763df9064747f5ef5d9b8ef8cd2e61d003626886bbc66a520ba137dab

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "65973301fa233a52c7ee1c3a930478169d327df8936dcd91dc6adbca1281c8da",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.str-el",
    "submitted_at": "2019-06-17T23:19:58Z",
    "title_canon_sha256": "1d0f262b5715b48256a77011eddfb44d6b63a7e154e2701928ee58a484e3ac9e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1906.07302",
    "kind": "arxiv",
    "version": 2
  }
}