Pith Number

pith:UNDV3QB6

pith:1997:UNDV3QB6V2O5U3OW56DZPSOD44

not attested not anchored not stored refs pending

Instability of an "Approximate Black Hole"

Eric W. Hirschmann, Matthew W. Choptuik, Steven Liebling

arxiv:gr-qc/9701011 v1 · 1997-01-07 · 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{UNDV3QB6V2O5U3OW56DZPSOD44}

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

2 papers in Pith

Unveiling horizons in quantum critical collapse

Receipt and verification

First computed	2026-05-18T04:35:34.056493Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a3475dc03eae9dda6dd6ef8797c9c3e7287f1b71b44c605a100c82c71829bd05

Aliases

arxiv: gr-qc/9701011 · arxiv_version: gr-qc/9701011v1 · doi: 10.48550/arxiv.gr-qc/9701011 · pith_short_12: UNDV3QB6V2O5 · pith_short_16: UNDV3QB6V2O5U3OW · pith_short_8: UNDV3QB6

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/UNDV3QB6V2O5U3OW56DZPSOD44 \
  | 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: a3475dc03eae9dda6dd6ef8797c9c3e7287f1b71b44c605a100c82c71829bd05

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "072b35426cdb580e45de0b12bb5e8ce99a9ea9e70894d87327bf5d53d0afb58a",
    "cross_cats_sorted": [
      "hep-th"
    ],
    "license": "",
    "primary_cat": "gr-qc",
    "submitted_at": "1997-01-07T19:10:02Z",
    "title_canon_sha256": "9784f34856f3d46c6a558e2835880253b50c96a244487137078258d06fd979f6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "gr-qc/9701011",
    "kind": "arxiv",
    "version": 1
  }
}