Pith Number

pith:JKPKCT7S

pith:2012:JKPKCT7SKQDVZNILXYDQCRXMAX

not attested not anchored not stored refs pending

Comment on the black hole firewall

Sabine Hossenfelder

arxiv:1210.5317 v1 · 2012-10-19 · 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{JKPKCT7SKQDVZNILXYDQCRXMAX}

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	2026-05-18T03:42:33.518974Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4a9ea14ff254075cb50bbe070146ec05f2403b40b0ff1fb3c02ce3ae8be26c41

Aliases

arxiv: 1210.5317 · arxiv_version: 1210.5317v1 · doi: 10.48550/arxiv.1210.5317 · pith_short_12: JKPKCT7SKQDV · pith_short_16: JKPKCT7SKQDVZNIL · pith_short_8: JKPKCT7S

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/JKPKCT7SKQDVZNILXYDQCRXMAX \
  | 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: 4a9ea14ff254075cb50bbe070146ec05f2403b40b0ff1fb3c02ce3ae8be26c41

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "24530b6038de30f088f740de6b7586f6dfb00533afa532dda8685ed7f0ad2e5d",
    "cross_cats_sorted": [
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2012-10-19T05:25:08Z",
    "title_canon_sha256": "854630a40e4a39734f619cffef150f4c2d824b6371887888fda91fa080d110f0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1210.5317",
    "kind": "arxiv",
    "version": 1
  }
}