Pith Number

pith:P5LGP6DK

pith:2013:P5LGP6DKEZ4K4BOSYGLSB442DZ

not attested not anchored not stored refs pending

Proton superconductivity and the masses of neutron stars

Fridolin Weber, Rodrigo Negreiros, Stefan Schramm

arxiv:1305.0845 v2 · 2013-05-03 · astro-ph.HE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{P5LGP6DKEZ4K4BOSYGLSB442DZ}

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	2026-05-18T03:22:18.296722Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7f5667f86a2678ae05d2c19720f39a1e6eca19f9fe7ceb03341106472871fc9a

Aliases

arxiv: 1305.0845 · arxiv_version: 1305.0845v2 · doi: 10.48550/arxiv.1305.0845 · pith_short_12: P5LGP6DKEZ4K · pith_short_16: P5LGP6DKEZ4K4BOS · pith_short_8: P5LGP6DK

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/P5LGP6DKEZ4K4BOSYGLSB442DZ \
  | 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: 7f5667f86a2678ae05d2c19720f39a1e6eca19f9fe7ceb03341106472871fc9a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "407e842874b4addac17ac6e9e79a899c057f8345e7f3d9e9d22489d405cb90af",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2013-05-03T21:17:05Z",
    "title_canon_sha256": "ce39a125f5f7455fa607575401338b2af2a2cda469971c198b050220b148ae23"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1305.0845",
    "kind": "arxiv",
    "version": 2
  }
}