Pith Number

pith:UYSLHMAM

pith:2020:UYSLHMAMB4AADAYLVRLIR4FYJK

not attested not anchored not stored refs pending

Type II critical collapse on a single fixed grid: a gauge-driven ingoing boundary method

Oliver Rinne

arxiv:2008.12726 v1 · 2020-08-28 · 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{UYSLHMAMB4AADAYLVRLIR4FYJK}

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	2026-07-05T01:56:43.838996Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a624b3b00c0f0001830bac5688f0b84a950c4e5806cf7f05a6de3defef2c5b45

Aliases

arxiv: 2008.12726 · arxiv_version: 2008.12726v1 · doi: 10.48550/arxiv.2008.12726 · pith_short_12: UYSLHMAMB4AA · pith_short_16: UYSLHMAMB4AADAYL · pith_short_8: UYSLHMAM

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/UYSLHMAMB4AADAYLVRLIR4FYJK \
  | 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: a624b3b00c0f0001830bac5688f0b84a950c4e5806cf7f05a6de3defef2c5b45

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6ae989fdf11d3d7e3bf2ddbda8989afb334f48ff07336b543a962b72bb47f202",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2020-08-28T16:30:14Z",
    "title_canon_sha256": "45929f7ef797fdab334266797ac1456eaa6009c0eab16330b8d68fc893272afb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2008.12726",
    "kind": "arxiv",
    "version": 1
  }
}