Pith Number

pith:WE7D6MDO

pith:2009:WE7D6MDOU5CQGS4XT4ICAEFN3A

not attested not anchored not stored refs pending

Underlying Fermi surface of Sr$_{14-x}$Ca$_x$Cu$_{24}$O$_{41}$ in two-dimensional momentum space observed by angle-resolved photoemission spectroscopy

A. Fujimori, H. Eisaki, S. Uchida, T. Yoshida, X. J. Zhou, Z. Hussain, Z.-X. Shen

arxiv:0903.2918 v1 · 2009-03-17 · cond-mat.str-el · cond-mat.supr-con

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WE7D6MDOU5CQGS4XT4ICAEFN3A}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T02:14:27.826846Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b13e3f306ea745034b979f102010add818dafb363c424084170d37c58d3088cf

Aliases

arxiv: 0903.2918 · arxiv_version: 0903.2918v1 · doi: 10.48550/arxiv.0903.2918 · pith_short_12: WE7D6MDOU5CQ · pith_short_16: WE7D6MDOU5CQGS4X · pith_short_8: WE7D6MDO

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/WE7D6MDOU5CQGS4XT4ICAEFN3A \
  | 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: b13e3f306ea745034b979f102010add818dafb363c424084170d37c58d3088cf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e98948bdbac606ec9061c70d1dca4aacf99db6f1661e0e2ebf0b7113b0aba919",
    "cross_cats_sorted": [
      "cond-mat.supr-con"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.str-el",
    "submitted_at": "2009-03-17T07:51:24Z",
    "title_canon_sha256": "047e714b527bc7e5fb4d0da892a4f9b8e4f48fd05e9578dbf76891fec6d4add8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0903.2918",
    "kind": "arxiv",
    "version": 1
  }
}