Pith Number

pith:HP3LGBPI

pith:2010:HP3LGBPI3TAJCK6747MSDB5JEU

not attested not anchored not stored refs pending

Band-aid for information loss from black holes

Werner Israel, Zinkoo Yun

arxiv:1009.0879 v2 · 2010-09-04 · 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{HP3LGBPI3TAJCK6747MSDB5JEU}

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	2026-05-18T04:31:32.398174Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3bf6b305e8dcc0912bdfe7d92187a925096c27232067e3015457d25db7518704

Aliases

arxiv: 1009.0879 · arxiv_version: 1009.0879v2 · doi: 10.48550/arxiv.1009.0879 · pith_short_12: HP3LGBPI3TAJ · pith_short_16: HP3LGBPI3TAJCK67 · pith_short_8: HP3LGBPI

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/HP3LGBPI3TAJCK6747MSDB5JEU \
  | 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: 3bf6b305e8dcc0912bdfe7d92187a925096c27232067e3015457d25db7518704

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "944a894bd80ef3c2c8c1f8067fef132c24ae73a2882e30ad6a6be6146e9da86a",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2010-09-04T22:46:17Z",
    "title_canon_sha256": "9718e7cce2c675a7e08e22f405de169ad64f806140f84007c40114cc1778fcdb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1009.0879",
    "kind": "arxiv",
    "version": 2
  }
}