Pith Number

pith:CMTKKP7F

pith:2021:CMTKKP7FBPGYH54CUNR6VCRHQX

not attested not anchored not stored refs pending

Absence of superconductivity in the Hubbard dimer model for kappa-(BEDT-TTF)_2X

D. Roy, R. T. Clay, S. Mazumdar

arxiv:2104.01998 v1 · 2021-04-05 · cond-mat.str-el · cond-mat.supr-con

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{CMTKKP7FBPGYH54CUNR6VCRHQX}

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	2026-07-05T02:42:30.090532Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1326a53fe50bcd83f782a363ea8a2785e782b4d6b9cbf54eb2792089daf58814

Aliases

arxiv: 2104.01998 · arxiv_version: 2104.01998v1 · doi: 10.48550/arxiv.2104.01998 · pith_short_12: CMTKKP7FBPGY · pith_short_16: CMTKKP7FBPGYH54C · pith_short_8: CMTKKP7F

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/CMTKKP7FBPGYH54CUNR6VCRHQX \
  | 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: 1326a53fe50bcd83f782a363ea8a2785e782b4d6b9cbf54eb2792089daf58814

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1f72de338be0eb2d1dbd842cac8663ec85b8cead2fd08f67c472bf68fcfe77e0",
    "cross_cats_sorted": [
      "cond-mat.supr-con"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.str-el",
    "submitted_at": "2021-04-05T16:42:09Z",
    "title_canon_sha256": "bb8648d1acfb364e4147daf368d4c0a89db47692724d9464a176652203173732"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2104.01998",
    "kind": "arxiv",
    "version": 1
  }
}