Pith Number

pith:NCY7UKPD

pith:2003:NCY7UKPD2JJATSPRYW6CKDERH6

not attested not anchored not stored refs pending

Anisotropy of electron momentum distribution in Bi$_2$Sr$_2$CaCu$_2$O$_(8+d)$ superconductor studied by positron annihilation technique

A. K. Pradhan, A. Sarkar, D. Banerjee, D. Sanyal, Mahuya Chakrabarti, R. Bhattacharya, S. Chattapadhayay

arxiv:cond-mat/0307725 v1 · 2003-07-30 · 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{NCY7UKPD2JJATSPRYW6CKDERH6}

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	2026-07-04T16:39:15.255604Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

68b1fa29e3d25209c9f1c5bc250c913f8c3ffd3766cc060ccd297805b397edf2

Aliases

arxiv: cond-mat/0307725 · arxiv_version: cond-mat/0307725v1 · doi: 10.48550/arxiv.cond-mat/0307725 · pith_short_12: NCY7UKPD2JJA · pith_short_16: NCY7UKPD2JJATSPR · pith_short_8: NCY7UKPD

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/NCY7UKPD2JJATSPRYW6CKDERH6 \
  | 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: 68b1fa29e3d25209c9f1c5bc250c913f8c3ffd3766cc060ccd297805b397edf2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "66295d692c1a97752f0e64117dde8423f4492f20969ceb9fc7e343328e09bd20",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "cond-mat.supr-con",
    "submitted_at": "2003-07-30T11:52:06Z",
    "title_canon_sha256": "e1f9c67497b834b9c9b3560430d1d00ffec65875f4d4cba7fc87f20a53c20827"
  },
  "schema_version": "1.0",
  "source": {
    "id": "cond-mat/0307725",
    "kind": "arxiv",
    "version": 1
  }
}