Pith Number

pith:MGN7MYKY

pith:2012:MGN7MYKYYGHGV2MMQZ77YHXHFT

not attested not anchored not stored refs pending

Classical and quantum Big Brake cosmology for scalar field and tachyonic models

Alexander Y. Kamenshchik, Serena Manti

arxiv:1202.0174 v2 · 2012-02-01 · gr-qc · astro-ph.CO · hep-th · quant-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{MGN7MYKYYGHGV2MMQZ77YHXHFT}

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	2026-05-18T01:58:36.880653Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

619bf66158c18e6ae98c867ffc1ee72cf7ba4bd75e4caabe2b7b2008f1a922f3

Aliases

arxiv: 1202.0174 · arxiv_version: 1202.0174v2 · doi: 10.48550/arxiv.1202.0174 · pith_short_12: MGN7MYKYYGHG · pith_short_16: MGN7MYKYYGHGV2MM · pith_short_8: MGN7MYKY

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/MGN7MYKYYGHGV2MMQZ77YHXHFT \
  | 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: 619bf66158c18e6ae98c867ffc1ee72cf7ba4bd75e4caabe2b7b2008f1a922f3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e2779a4ab2027a5a7fed4ad378b605693c2ae69880aa7f590cec625b32dc1ab7",
    "cross_cats_sorted": [
      "astro-ph.CO",
      "hep-th",
      "quant-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2012-02-01T13:56:36Z",
    "title_canon_sha256": "1e8f1fcd4b0eb59f7e60c69fb9696f723c36fff989dba0f3dcaf3ce56e1bd09c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1202.0174",
    "kind": "arxiv",
    "version": 2
  }
}