Pith Number

pith:C4DPC2GK

pith:2021:C4DPC2GKNJUL4X7KBQQU24ZYEI

not attested not anchored not stored refs pending

The Page curve and baby universes

Donald Marolf, Henry Maxfield

arxiv:2105.12211 v1 · 2021-05-25 · hep-th · gr-qc

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{C4DPC2GKNJUL4X7KBQQU24ZYEI}

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.

Cited by

1 paper in Pith

Gravitational Hilbert spaces: invariant and co-invariant states, inner products, gauge-fixing, and BRST

Receipt and verification

First computed	2026-07-05T03:51:07.377876Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1706f168ca6a68be5fea0c214d73382200c6eda3cec52d8b0bc8fcd871e7d4da

Aliases

arxiv: 2105.12211 · arxiv_version: 2105.12211v1 · doi: 10.48550/arxiv.2105.12211 · pith_short_12: C4DPC2GKNJUL · pith_short_16: C4DPC2GKNJUL4X7K · pith_short_8: C4DPC2GK

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/C4DPC2GKNJUL4X7KBQQU24ZYEI \
  | 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: 1706f168ca6a68be5fea0c214d73382200c6eda3cec52d8b0bc8fcd871e7d4da

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "43e1620a2650fac3666cadc6032089de2d1d0f75d3dac908d53f70dbf2885291",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2021-05-25T20:49:27Z",
    "title_canon_sha256": "9c20f50343f2feb8a4e24afc885851e9f4528dfe65daf5022d1cfca47cdd87fb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2105.12211",
    "kind": "arxiv",
    "version": 1
  }
}