Pith Number

pith:DEV4UAAU

pith:2020:DEV4UAAUJAICW4UAGOOYKK7575

not attested not anchored not stored refs pending

Stable, non-singular bouncing universe with only a scalar mode

Anupam Mazumdar, Jun Peng, K. Sravan Kumar, Shubham Maheshwari

arxiv:2005.01762 v1 · 2020-05-04 · 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{DEV4UAAUJAICW4UAGOOYKK7575}

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	2026-07-05T01:22:18.513545Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

192bca001448102b7280339d852bfdff6b5e9bd2fa39051c261235035df37a0a

Aliases

arxiv: 2005.01762 · arxiv_version: 2005.01762v1 · doi: 10.48550/arxiv.2005.01762 · pith_short_12: DEV4UAAUJAIC · pith_short_16: DEV4UAAUJAICW4UA · pith_short_8: DEV4UAAU

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/DEV4UAAUJAICW4UAGOOYKK7575 \
  | 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: 192bca001448102b7280339d852bfdff6b5e9bd2fa39051c261235035df37a0a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "82e0b8e8e23bf93e244b00ba7eb7c471498f9d0351ee11b51979e398237893d4",
    "cross_cats_sorted": [
      "astro-ph.CO",
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2020-05-04T18:03:59Z",
    "title_canon_sha256": "f5acb22f5fb24a030cd407e76852d6ef5de2b9de2601d0503db034dc799d12ce"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2005.01762",
    "kind": "arxiv",
    "version": 1
  }
}