Pith Number

pith:RLWHB5SS

pith:2007:RLWHB5SS3AV7BW33Q7SRZZLSVA

not attested not anchored not stored refs pending

Black hole as an Information Eraser

Hyeong-Chan Kim, Jae-Weon Lee, Jungjai Lee

arxiv:0709.3573 v4 · 2007-09-22 · 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{RLWHB5SS3AV7BW33Q7SRZZLSVA}

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	2026-05-18T02:35:30.334814Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8aec70f652d82bf0db7b87e51ce572a8078cec84b9b86f800da40e1418b93ff1

Aliases

arxiv: 0709.3573 · arxiv_version: 0709.3573v4 · doi: 10.48550/arxiv.0709.3573 · pith_short_12: RLWHB5SS3AV7 · pith_short_16: RLWHB5SS3AV7BW33 · pith_short_8: RLWHB5SS

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/RLWHB5SS3AV7BW33Q7SRZZLSVA \
  | 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: 8aec70f652d82bf0db7b87e51ce572a8078cec84b9b86f800da40e1418b93ff1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e329cf65267f6a06bb8a8c04c2c5376e9b951500201887dd9d59821a7144f3c0",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2007-09-22T10:21:32Z",
    "title_canon_sha256": "0a6ea7e6f4c8ec07d7e621d14ce8861efbbaf0ab850546040f8373258d4cbad4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0709.3573",
    "kind": "arxiv",
    "version": 4
  }
}