pith. sign in
Pith Number

pith:ZNAAWACB

pith:2015:ZNAAWACBM7TKLM5PIBQA5O54WX
not attested not anchored not stored refs pending

The Kantowski-Sachs quantum model with stiff matter fluid

F. G. Alvarenga, R. C. Freitas, R. Fracalossi, S. V. B. Gon\c{c}alves

arxiv:1506.02495 v2 · 2015-05-28 · gr-qc · astro-ph.CO · hep-th

Add to your LaTeX paper
\usepackage{pith}
\pithnumber{ZNAAWACBM7TKLM5PIBQA5O54WX}

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 2026-05-18T00:59:42.328498Z
Builder pith-number-builder-2026-05-17-v1
Signature Pith Ed25519 (pith-v1-2026-05) · public key
Schema pith-number/v1.0

Canonical hash

cb400b004167e6a5b3af40600ebbbcb5d9acbadb5224ccd1905b669876ad172d

Aliases

arxiv: 1506.02495 · arxiv_version: 1506.02495v2 · doi: 10.48550/arxiv.1506.02495 · pith_short_12: ZNAAWACBM7TK · pith_short_16: ZNAAWACBM7TKLM5P · pith_short_8: ZNAAWACB
Agent API
Verify this Pith Number yourself
curl -sH 'Accept: application/ld+json' https://pith.science/pith/ZNAAWACBM7TKLM5PIBQA5O54WX \
  | 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: cb400b004167e6a5b3af40600ebbbcb5d9acbadb5224ccd1905b669876ad172d
Canonical record JSON
{
  "metadata": {
    "abstract_canon_sha256": "248b6f00a6ec972ee4ac45f45c36bfe557b5d9d493c4ec3e17c1e1e8d4824491",
    "cross_cats_sorted": [
      "astro-ph.CO",
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2015-05-28T21:07:28Z",
    "title_canon_sha256": "6921501b44b9885094717d0f37b1a27c6a94d2c8e39cc9919c7e405abf64499b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1506.02495",
    "kind": "arxiv",
    "version": 2
  }
}