Pith Number

pith:BQH2CSHR

pith:2010:BQH2CSHRZOVWXX53XOZDGE22JM

not attested not anchored not stored refs pending

The black hole information paradox and macroscopic superpositions

Stephen D.H. Hsu

arxiv:1003.5382 v1 · 2010-03-28 · 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{BQH2CSHRZOVWXX53XOZDGE22JM}

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	2026-05-18T02:33:40.319383Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0c0fa148f1cbab6bdfbbbbb233135a4b2aa6688be3bf2e6a9e21e923579ea0a7

Aliases

arxiv: 1003.5382 · arxiv_version: 1003.5382v1 · doi: 10.48550/arxiv.1003.5382 · pith_short_12: BQH2CSHRZOVW · pith_short_16: BQH2CSHRZOVWXX53 · pith_short_8: BQH2CSHR

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/BQH2CSHRZOVWXX53XOZDGE22JM \
  | 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: 0c0fa148f1cbab6bdfbbbbb233135a4b2aa6688be3bf2e6a9e21e923579ea0a7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "81a3df9e351d48890ed884a5e77a148f1c1dc6c200265cad0583a6cfbb145f96",
    "cross_cats_sorted": [
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2010-03-28T17:30:31Z",
    "title_canon_sha256": "12986793e6d3d4bd3e8b5ce2795cccc5798773751c7a805124a3c970e42e3c8e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1003.5382",
    "kind": "arxiv",
    "version": 1
  }
}