Pith Number

pith:7OBWCDUS

pith:2021:7OBWCDUSP7O2C5HYRUSV3JL2DF

not attested not anchored not stored refs pending

Black hole in asymmetric cosmological bounce

Daniela P\'erez, Gustavo E. Romero, Santiago E. Perez Bergliaffa

arxiv:2103.01321 v1 · 2021-03-01 · gr-qc · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7OBWCDUSP7O2C5HYRUSV3JL2DF}

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	2026-07-05T02:19:16.891937Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fb83610e927fdda174f88d255da57a197f24d692ddda0d688dabfa71c1ac75d0

Aliases

arxiv: 2103.01321 · arxiv_version: 2103.01321v1 · doi: 10.48550/arxiv.2103.01321 · pith_short_12: 7OBWCDUSP7O2 · pith_short_16: 7OBWCDUSP7O2C5HY · pith_short_8: 7OBWCDUS

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/7OBWCDUSP7O2C5HYRUSV3JL2DF \
  | 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: fb83610e927fdda174f88d255da57a197f24d692ddda0d688dabfa71c1ac75d0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cd0bc96463feacf72709650391cf9e093ba018e3043486961b8eb64e7698a709",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2021-03-01T21:39:28Z",
    "title_canon_sha256": "c5e1c4def24190327c82f0b8de612f0443e6949a4b0b09a5ae1891041f453f5b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2103.01321",
    "kind": "arxiv",
    "version": 1
  }
}