Pith Number

pith:4COHGTZV

pith:2026:4COHGTZV7ZH3S2SNGDGDIMBA7G

not attested not anchored not stored refs pending

Numerical approach to the London Equation of superconductivity

Carlos Rom\'an, Ignacio Labarca-Figueroa, Nicol\'as Barnafi

arxiv:2607.27103 v1 · 2026-07-29 · math.NA · cs.NA · math-ph · math.AP · math.MP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4COHGTZV7ZH3S2SNGDGDIMBA7G}

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	2026-07-30T01:23:35.089369Z
Builder	pith-number-builder-2026-05-17-v1
Signature	unsigned_v0
Schema	pith-number/v1.0

Canonical hash

e09c734f35fe4fb96a4d30cc343020f9aea43a9bac0660e3d9206699bd339ab6

Aliases

arxiv: 2607.27103 · arxiv_version: 2607.27103v1 · doi: 10.48550/arxiv.2607.27103 · pith_short_12: 4COHGTZV7ZH3 · pith_short_16: 4COHGTZV7ZH3S2SN · pith_short_8: 4COHGTZV

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/4COHGTZV7ZH3S2SNGDGDIMBA7G \
  | 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: e09c734f35fe4fb96a4d30cc343020f9aea43a9bac0660e3d9206699bd339ab6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bc714c5d6e3403370737b67255b9d51e0721c69177b19e2dd5049b90a0f50b15",
    "cross_cats_sorted": [
      "cs.NA",
      "math-ph",
      "math.AP",
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2026-07-29T16:31:03Z",
    "title_canon_sha256": "afd688b578e8ea2f801dad2f26e8a71d74351393474f6cfe3ce22a04a82bad74"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.27103",
    "kind": "arxiv",
    "version": 1
  }
}