Pith Number

pith:HQWQSJS4

pith:2012:HQWQSJS4CCKPLQBJOTPE4NU3PZ

not attested not anchored not stored refs pending

A New Code for Proto-Neutron Star Evolution

Luke F. Roberts

arxiv:1205.3228 v2 · 2012-05-15 · 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{HQWQSJS4CCKPLQBJOTPE4NU3PZ}

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	2026-05-18T01:57:32.190238Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3c2d09265c1094f5c02974de4e369b7e5c307499eb76ec35f97f2ba68917a6d3

Aliases

arxiv: 1205.3228 · arxiv_version: 1205.3228v2 · doi: 10.48550/arxiv.1205.3228 · pith_short_12: HQWQSJS4CCKP · pith_short_16: HQWQSJS4CCKPLQBJ · pith_short_8: HQWQSJS4

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/HQWQSJS4CCKPLQBJOTPE4NU3PZ \
  | 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: 3c2d09265c1094f5c02974de4e369b7e5c307499eb76ec35f97f2ba68917a6d3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7836cda45076d998a6199efb98901677b90c4591b84acd53613244093e1b6a4e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2012-05-15T00:33:32Z",
    "title_canon_sha256": "843619c33272a5b439c17704d341b3f9e3063b9e54cc8ef4926980bc70b89260"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1205.3228",
    "kind": "arxiv",
    "version": 2
  }
}