Pith Number

pith:WRZ6PLAY

pith:2018:WRZ6PLAYYYIN345633O5RNT2RZ

not attested not anchored not stored refs pending

Semiclassical cosmology with back reaction: the Friedmann-Schrodinger equation and inflation

Suprit Singh, Viqar Husain

arxiv:1811.03673 v1 · 2018-11-08 · 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{WRZ6PLAYYYIN345633O5RNT2RZ}

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	2026-05-17T23:46:50.029699Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b473e7ac18c610ddf3bededdd8b67a8e6d97f094c6bde6fcd9a1b1f6cd16b286

Aliases

arxiv: 1811.03673 · arxiv_version: 1811.03673v1 · doi: 10.48550/arxiv.1811.03673 · pith_short_12: WRZ6PLAYYYIN · pith_short_16: WRZ6PLAYYYIN3456 · pith_short_8: WRZ6PLAY

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/WRZ6PLAYYYIN345633O5RNT2RZ \
  | 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: b473e7ac18c610ddf3bededdd8b67a8e6d97f094c6bde6fcd9a1b1f6cd16b286

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bcdffcecb6dff2c4651beaf4f757eefd506aa2143a663ac0e9b390d33dbfcd4a",
    "cross_cats_sorted": [
      "astro-ph.CO",
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2018-11-08T20:52:02Z",
    "title_canon_sha256": "5f4756e873711c44c482ff9fd9e335164174d38044ae0b84a04ce322ae7d85c0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1811.03673",
    "kind": "arxiv",
    "version": 1
  }
}