Pith Number

pith:HNKM4ORU

pith:2015:HNKM4ORUDILGKFOOMVDHJ3B2KW

not attested not anchored not stored refs pending

Bouncing Universes in Scalar-Tensor Gravity Models admitting Negative Potentials

A. A. Starobinsky, B. Boisseau, D. Polarski, H. Giacomini

arxiv:1504.07927 v2 · 2015-04-29 · gr-qc · astro-ph.CO · 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{HNKM4ORUDILGKFOOMVDHJ3B2KW}

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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

1 paper in Pith

Extended Dark Energy analysis using DESI DR2 BAO measurements

Receipt and verification

First computed	2026-05-18T01:36:53.683153Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3b54ce3a341a166515ce654674ec3a5590243582e6d5cf8755f531d15ca7d508

Aliases

arxiv: 1504.07927 · arxiv_version: 1504.07927v2 · doi: 10.48550/arxiv.1504.07927 · pith_short_12: HNKM4ORUDILG · pith_short_16: HNKM4ORUDILGKFOO · pith_short_8: HNKM4ORU

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/HNKM4ORUDILGKFOOMVDHJ3B2KW \
  | 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: 3b54ce3a341a166515ce654674ec3a5590243582e6d5cf8755f531d15ca7d508

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b537c9f3e284f1108ae4459bf342290cd341fc6a599d4c5bc8a3b93aeb25c72d",
    "cross_cats_sorted": [
      "astro-ph.CO",
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2015-04-29T17:03:10Z",
    "title_canon_sha256": "c1cb19cd7814f1dbe37867fb5ec6764dcfc39260071ade67153dd34e5ebb3d37"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.07927",
    "kind": "arxiv",
    "version": 2
  }
}