Pith Number

pith:6WYDZ2YQ

pith:2025:6WYDZ2YQHV7F7JU2LE4S6YCDWH

not attested not anchored not stored refs pending

Superconducting properties of ultrapure niobium

K.-H. Bertel, N. E. Alekseevskiy, V. I. Nizhankovskiy

arxiv:2506.01330 v1 · 2025-06-02 · cond-mat.supr-con · cond-mat.mtrl-sci

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{6WYDZ2YQHV7F7JU2LE4S6YCDWH}

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	2026-07-05T11:14:11.759816Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f5b03ceb103d7e5fa69a59392f6043b1db3a841f11b8e6567cc9faf939a66849

Aliases

arxiv: 2506.01330 · arxiv_version: 2506.01330v1 · doi: 10.48550/arxiv.2506.01330 · pith_short_12: 6WYDZ2YQHV7F · pith_short_16: 6WYDZ2YQHV7F7JU2 · pith_short_8: 6WYDZ2YQ

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/6WYDZ2YQHV7F7JU2LE4S6YCDWH \
  | 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: f5b03ceb103d7e5fa69a59392f6043b1db3a841f11b8e6567cc9faf939a66849

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "31e5d1550e238af81e774b86dadd8062ca4d1a47c3afd13c2f000af1e02cbae7",
    "cross_cats_sorted": [
      "cond-mat.mtrl-sci"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cond-mat.supr-con",
    "submitted_at": "2025-06-02T05:19:16Z",
    "title_canon_sha256": "bcaa0a220c54502e33239dc980a46ab65584d1c2b8a0d0e0d6c135e7657d5feb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2506.01330",
    "kind": "arxiv",
    "version": 1
  }
}