Pith. sign in
Pith Number

pith:IQQLF35X

pith:2021:IQQLF35XUZFY74NUJMH3ZO7TCA
not attested not anchored not stored refs pending

No black holes from cosmic string cusps

Alexander Vilenkin, Jose J. Blanco-Pillado, Ken D. Olum

arxiv:2101.05040 v1 · 2021-01-13 · astro-ph.CO · gr-qc · hep-ph

Add to your LaTeX paper
\usepackage{pith}
\pithnumber{IQQLF35XUZFY74NUJMH3ZO7TCA}

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.

Cited by

2 papers in Pith

Receipt and verification
First computed 2026-07-05T02:06:37.343578Z
Builder pith-number-builder-2026-05-17-v1
Signature Pith Ed25519 (pith-v1-2026-05) · public key
Schema pith-number/v1.0

Canonical hash

4420b2efb7a64b8ff1b44b0fbcbbf310263b453c140f49a2b3658ccf3156dcd1

Aliases

arxiv: 2101.05040 · arxiv_version: 2101.05040v1 · doi: 10.48550/arxiv.2101.05040 · pith_short_12: IQQLF35XUZFY · pith_short_16: IQQLF35XUZFY74NU · pith_short_8: IQQLF35X
Agent API
Verify this Pith Number yourself
curl -sH 'Accept: application/ld+json' https://pith.science/pith/IQQLF35XUZFY74NUJMH3ZO7TCA \
  | 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: 4420b2efb7a64b8ff1b44b0fbcbbf310263b453c140f49a2b3658ccf3156dcd1
Canonical record JSON
{
  "metadata": {
    "abstract_canon_sha256": "434cdcf50960fa091765517d56df132ff1977b0078558162185237148484ed83",
    "cross_cats_sorted": [
      "gr-qc",
      "hep-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2021-01-13T13:13:26Z",
    "title_canon_sha256": "80a8faba5e8e96d25614ae94dd474cc088b0165c639374c9f9b4b2aa36349c43"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2101.05040",
    "kind": "arxiv",
    "version": 1
  }
}