Pith Number

pith:SS6HMTYM

pith:2009:SS6HMTYMFEH6Y45AEQ6JPAF27T

not attested not anchored not stored refs pending

Gravitational collapse and topology change in spherically symmetric dynamical systems

Istvan Racz, Peter Csizmadia

arxiv:0911.2373 v2 · 2009-11-12 · 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{SS6HMTYMFEH6Y45AEQ6JPAF27T}

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	2026-05-18T02:10:48.336474Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

94bc764f0c290fec73a0243c9780bafccc02f3d04ae94ed3b91e5538afc4d5cf

Aliases

arxiv: 0911.2373 · arxiv_version: 0911.2373v2 · doi: 10.48550/arxiv.0911.2373 · pith_short_12: SS6HMTYMFEH6 · pith_short_16: SS6HMTYMFEH6Y45A · pith_short_8: SS6HMTYM

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/SS6HMTYMFEH6Y45AEQ6JPAF27T \
  | 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: 94bc764f0c290fec73a0243c9780bafccc02f3d04ae94ed3b91e5538afc4d5cf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9ed4fd740911aa6e6479c6736e64bf982bc6b43b75e2da07a2e70efd35716286",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2009-11-12T12:30:44Z",
    "title_canon_sha256": "f67813afab1167dbd6a655bba2be7bde82a92fb7d3596461a20684c999fad844"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0911.2373",
    "kind": "arxiv",
    "version": 2
  }
}