Pith Number

pith:SA7DW3MR

pith:2019:SA7DW3MRNPWJNQF4DOR77N5DMC

not attested not anchored not stored refs pending

t-J model on the effective brick-wall lattice for the recently discovered high-temperature superconductor Ba$_2$CuO$_{3+\delta}$

Fu-Chun Zhang, Sen Zhou, Wei-Qiang Chen, Zhan Wang

arxiv:1912.12581 v2 · 2019-12-29 · cond-mat.supr-con · 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{SA7DW3MRNPWJNQF4DOR77N5DMC}

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	2026-07-05T01:05:40.844258Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

903e3b6d916bec96c0bc1ba3ffb7a360a3725a4f871c53efb16b3f9d7c62eb56

Aliases

arxiv: 1912.12581 · arxiv_version: 1912.12581v2 · doi: 10.48550/arxiv.1912.12581 · pith_short_12: SA7DW3MRNPWJ · pith_short_16: SA7DW3MRNPWJNQF4 · pith_short_8: SA7DW3MR

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/SA7DW3MRNPWJNQF4DOR77N5DMC \
  | 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: 903e3b6d916bec96c0bc1ba3ffb7a360a3725a4f871c53efb16b3f9d7c62eb56

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "60f99b0e5f8fccc3e55f454d2799519b64349c5f482c2cc1474c31828198261a",
    "cross_cats_sorted": [
      "cond-mat.str-el"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.supr-con",
    "submitted_at": "2019-12-29T05:17:41Z",
    "title_canon_sha256": "7a6e410493da9221eded7b195a0d942ff84321412e9d07793d8e2bc7c57b982c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1912.12581",
    "kind": "arxiv",
    "version": 2
  }
}