Pith Number

pith:4VP3QHME

pith:2008:4VP3QHMEHU5CNVV3BML7NVZNB4

not attested not anchored not stored refs pending

Peak effect phenomena, surface superconductivity and paramagnetic Meissner effect in a spherical single crystal of niobium

A. K. Grover, C. V. Tomy, H. Takeya, Pradip Das, S. Ramakrishnan

arxiv:0812.4806 v1 · 2008-12-28 · 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{4VP3QHMEHU5CNVV3BML7NVZNB4}

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	2026-07-04T17:13:58.787773Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e55fb81d843d3a26d6bb0b17f6d72d0f2e9355e3f508bb1eb3de964ce62223a4

Aliases

arxiv: 0812.4806 · arxiv_version: 0812.4806v1 · doi: 10.48550/arxiv.0812.4806 · pith_short_12: 4VP3QHMEHU5C · pith_short_16: 4VP3QHMEHU5CNVV3 · pith_short_8: 4VP3QHME

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/4VP3QHMEHU5CNVV3BML7NVZNB4 \
  | 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: e55fb81d843d3a26d6bb0b17f6d72d0f2e9355e3f508bb1eb3de964ce62223a4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6bd7740fbb3cf6a0d964fcd630eed727532f509a598e5df754bc0a91ab8491d3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.supr-con",
    "submitted_at": "2008-12-28T09:52:59Z",
    "title_canon_sha256": "3be30b2f1fe28a0369d8e4181f8293861748d332df72b47d9d1a371078a2f8b3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0812.4806",
    "kind": "arxiv",
    "version": 1
  }
}