Pith Number

pith:OSJNA4ZY

pith:2009:OSJNA4ZYV5FJVWDZUZ4VDKUVMU

not attested not anchored not stored refs pending

The information paradox: A pedagogical introduction

Samir D. Mathur

arxiv:0909.1038 v2 · 2009-09-05 · 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{OSJNA4ZYV5FJVWDZUZ4VDKUVMU}

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

23 papers in Pith

Imprints of dynamical phases in semiclassical entanglement entropy in 2D CFT

Finite N Black Holes through the Brick Wall

Classical Corrections to Black Hole Entropy II

On Black Holes Surrounded by Radiation II: Thermodynamics

Modular quantization and black holes

Receipt and verification

First computed	2026-05-18T04:30:59.848833Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7492d07338af4a9ad879a67951aa9565251cf9c021a95289b9264a97f3cf63fa

Aliases

arxiv: 0909.1038 · arxiv_version: 0909.1038v2 · doi: 10.48550/arxiv.0909.1038 · pith_short_12: OSJNA4ZYV5FJ · pith_short_16: OSJNA4ZYV5FJVWDZ · pith_short_8: OSJNA4ZY

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/OSJNA4ZYV5FJVWDZUZ4VDKUVMU \
  | 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: 7492d07338af4a9ad879a67951aa9565251cf9c021a95289b9264a97f3cf63fa

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e275d744c57f63845ecd698fbfba1adc4f78bb5ebe7c161e34e627a0f58efa85",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2009-09-05T15:44:54Z",
    "title_canon_sha256": "9465c5ac68096e8becb7e9a88a94fe83f4405db3bc9da23869ea8e823b3f30b1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0909.1038",
    "kind": "arxiv",
    "version": 2
  }
}