Pith Number

pith:ITSWKAAK

pith:2017:ITSWKAAKPWQZEVANN4BFKBDSTJ

not attested not anchored not stored refs pending

Scalar-metric quantum cosmology with Chaplygin gas and perfect fluid

Prasanta K. Panigrahi, Saumya Ghosh, Sunandan Gangopadhyay

arxiv:1711.09891 v1 · 2017-11-27 · gr-qc · hep-th

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ITSWKAAKPWQZEVANN4BFKBDSTJ}

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	2026-05-18T00:23:29.133917Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

44e565000a7da192540d6f025504729a7a101ce963b5a0a373da467806755205

Aliases

arxiv: 1711.09891 · arxiv_version: 1711.09891v1 · doi: 10.48550/arxiv.1711.09891 · pith_short_12: ITSWKAAKPWQZ · pith_short_16: ITSWKAAKPWQZEVAN · pith_short_8: ITSWKAAK

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/ITSWKAAKPWQZEVANN4BFKBDSTJ \
  | 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: 44e565000a7da192540d6f025504729a7a101ce963b5a0a373da467806755205

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1b661beb63622a759d26eb76f891bbd5aa8a823efb8b5014dfaed834a9b0f1f6",
    "cross_cats_sorted": [
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2017-11-27T10:33:38Z",
    "title_canon_sha256": "ca19315604fa1db395338f8d782051f26a134a168327ed59b3879a0b1f592fc8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1711.09891",
    "kind": "arxiv",
    "version": 1
  }
}