Pith Number

pith:XMG2BFQK

pith:1999:XMG2BFQKRSVIVPXS62AAZFNWBY

not attested not anchored not stored refs pending

Why does a metal-superconductor junction have a resistance?

C.W.J. Beenakker

arxiv:cond-mat/9909293 v2 · 1999-09-20 · cond-mat.mes-hall

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XMG2BFQKRSVIVPXS62AAZFNWBY}

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	2026-05-18T03:28:54.579402Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bb0da0960a8caa8abef2f6800c95b60e322faa918dbfcfa1356ac66c772cdd1f

Aliases

arxiv: cond-mat/9909293 · arxiv_version: cond-mat/9909293v2 · doi: 10.48550/arxiv.cond-mat/9909293 · pith_short_12: XMG2BFQKRSVI · pith_short_16: XMG2BFQKRSVIVPXS · pith_short_8: XMG2BFQK

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/XMG2BFQKRSVIVPXS62AAZFNWBY \
  | 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: bb0da0960a8caa8abef2f6800c95b60e322faa918dbfcfa1356ac66c772cdd1f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "979fe3442ab2858d4eb6860fcb61b587c4b64898ea02e6cbfe73e178e3568569",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "cond-mat.mes-hall",
    "submitted_at": "1999-09-20T15:09:30Z",
    "title_canon_sha256": "4af3dafb3570f4d6d81bfbb1c348bf864e26ba23d34dc9b724fe91ea1fefa3bc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "cond-mat/9909293",
    "kind": "arxiv",
    "version": 2
  }
}