Pith Number

pith:EWR2GQAF

pith:2018:EWR2GQAFQUBZKA6FH4GSUNDA5I

not attested not anchored not stored refs pending

Substrate induced proximity effect in superconducting niobium nanofilms

A. Perali, L. Flammia, M. Fretto, M. Milosevic, N. De Leo, N. Pinto, S.J. Rezvani, S. Nannarone

arxiv:1810.12643 v1 · 2018-10-30 · physics.app-ph · 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{EWR2GQAFQUBZKA6FH4GSUNDA5I}

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	2026-05-18T00:01:56.414392Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

25a3a3400585039503c53f0d2a3460ea12c943cfbb38a0534d91d2faa9150659

Aliases

arxiv: 1810.12643 · arxiv_version: 1810.12643v1 · doi: 10.48550/arxiv.1810.12643 · pith_short_12: EWR2GQAFQUBZ · pith_short_16: EWR2GQAFQUBZKA6F · pith_short_8: EWR2GQAF

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/EWR2GQAFQUBZKA6FH4GSUNDA5I \
  | 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: 25a3a3400585039503c53f0d2a3460ea12c943cfbb38a0534d91d2faa9150659

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "73dc383fbc192e0c0c6a8381d648f1187d1a88b8f7b893379da03ac847a2fe60",
    "cross_cats_sorted": [
      "cond-mat.supr-con"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.app-ph",
    "submitted_at": "2018-10-30T10:41:05Z",
    "title_canon_sha256": "66663dd202287bff3690a32ce46650fc0b5a2cf38cfba0bdcb037cea8720115f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1810.12643",
    "kind": "arxiv",
    "version": 1
  }
}