Pith Number

pith:PL3ZHJKL

pith:2019:PL3ZHJKLFNHOBJ5EKFMD7SXV2W

not attested not anchored not stored refs pending

Black Hole Memory

Adel A. Rahman, Robert M. Wald

arxiv:1912.12806 v2 · 2019-12-30 · gr-qc · hep-th

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PL3ZHJKLFNHOBJ5EKFMD7SXV2W}

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

Asymptotically-FLRW$_3$ spacetimes

Receipt and verification

First computed	2026-07-05T01:14:34.233509Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7af793a54b2b4ee0a7a451583fcaf5d5a685a11922364c3c67e57da0a7d35799

Aliases

arxiv: 1912.12806 · arxiv_version: 1912.12806v2 · doi: 10.48550/arxiv.1912.12806 · pith_short_12: PL3ZHJKLFNHO · pith_short_16: PL3ZHJKLFNHOBJ5E · pith_short_8: PL3ZHJKL

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/PL3ZHJKLFNHOBJ5EKFMD7SXV2W \
  | 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: 7af793a54b2b4ee0a7a451583fcaf5d5a685a11922364c3c67e57da0a7d35799

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "748ec0528be86a34af21cb3174ef9b6ea61b0e87162e9bec8970352c75a765ba",
    "cross_cats_sorted": [
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2019-12-30T04:11:51Z",
    "title_canon_sha256": "163a972991dfaf39b7df5f81f2663e6adddb392f57a1e783666ba864946bd6db"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1912.12806",
    "kind": "arxiv",
    "version": 2
  }
}