Pith Number

pith:7RYICFCI

pith:1999:7RYICFCIRI56P7RTJJQHT7I7WA

not attested not anchored not stored refs pending

Indications of Spin-Charge Separation in the 2D Extended t-J Model

Elbio Dagotto, George B. Martins, Robert Eder

arxiv:cond-mat/9904030 v2 · 1999-04-01 · 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{7RYICFCIRI56P7RTJJQHT7I7WA}

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	2026-05-18T01:39:29.161002Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fc708114488a3be7fe334a6079fd1fb02d99249868ac234306442a615f1137a2

Aliases

arxiv: cond-mat/9904030 · arxiv_version: cond-mat/9904030v2 · doi: 10.48550/arxiv.cond-mat/9904030 · pith_short_12: 7RYICFCIRI56 · pith_short_16: 7RYICFCIRI56P7RT · pith_short_8: 7RYICFCI

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/7RYICFCIRI56P7RTJJQHT7I7WA \
  | 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: fc708114488a3be7fe334a6079fd1fb02d99249868ac234306442a615f1137a2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5cdf68ca88630dd1b0a8442b8febadf366053296464575e2087e1f15ece97f4a",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "cond-mat.str-el",
    "submitted_at": "1999-04-01T21:19:34Z",
    "title_canon_sha256": "0e68325d8d2297ef258a8a857e0e9754a74cc27679ea4e92f512a9c6d723295a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "cond-mat/9904030",
    "kind": "arxiv",
    "version": 2
  }
}