Pith Number

pith:F7EX75KS

pith:2021:F7EX75KSA74SULMFBCTSPINN5J

not attested not anchored not stored refs pending

Islands in Flat-Space Cosmology

Ali Naseh, Hamed Zolfi, Reza Fareghbal, Sanam Azarnia

arxiv:2109.04795 v3 · 2021-09-10 · 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{F7EX75KSA74SULMFBCTSPINN5J}

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

Entanglement islands, fuzzballs and stretched horizons

Receipt and verification

First computed	2026-07-05T03:47:24.023600Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2fc97ff55207f92a2d8508a727a1adea5ce2b283f7cb4596fee578821b36c9fc

Aliases

arxiv: 2109.04795 · arxiv_version: 2109.04795v3 · doi: 10.48550/arxiv.2109.04795 · pith_short_12: F7EX75KSA74S · pith_short_16: F7EX75KSA74SULMF · pith_short_8: F7EX75KS

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/F7EX75KSA74SULMFBCTSPINN5J \
  | 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: 2fc97ff55207f92a2d8508a727a1adea5ce2b283f7cb4596fee578821b36c9fc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c473d3a1857a61907a658ea0d1911428f5f873d04ba580f194f77cf2cde5f33a",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2021-09-10T11:21:28Z",
    "title_canon_sha256": "1e2253c20632602c157c7ff8d774d65e324c2e9aa80f66db3ded5c587b9b258f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2109.04795",
    "kind": "arxiv",
    "version": 3
  }
}