Pith Number

pith:4LDEV7QG

pith:2012:4LDEV7QGJLWKVAUCTPRYUDZTSI

not attested not anchored not stored refs pending

Fallback Disks, Magnetars and Other Neutron Stars

M. Ali Alpar, S. Caliskan, U. Ertan

arxiv:1211.4721 v2 · 2012-11-20 · 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{4LDEV7QGJLWKVAUCTPRYUDZTSI}

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	2026-05-18T01:53:02.545741Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e2c64afe064aecaa82829be38a0f33921c9b0b0fdb265b324b29c39fbfcafb57

Aliases

arxiv: 1211.4721 · arxiv_version: 1211.4721v2 · doi: 10.48550/arxiv.1211.4721 · pith_short_12: 4LDEV7QGJLWK · pith_short_16: 4LDEV7QGJLWKVAUC · pith_short_8: 4LDEV7QG

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/4LDEV7QGJLWKVAUCTPRYUDZTSI \
  | 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: e2c64afe064aecaa82829be38a0f33921c9b0b0fdb265b324b29c39fbfcafb57

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d172bf6758e4b8a35bc9736e8b2e71f8f1b1db1f2000922463dfdfe516bd696e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2012-11-20T11:44:37Z",
    "title_canon_sha256": "3c0957bd8eeb33071eae3760bf897ff9c8b2f143d5cebb108c3626780eaf9b31"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1211.4721",
    "kind": "arxiv",
    "version": 2
  }
}