Pith Number

pith:ONWK2ED4

pith:2019:ONWK2ED4UZ74GMRIYG4W7X3QBZ

not attested not anchored not stored refs pending

Trapped surfaces, energy conditions, and horizon avoidance in spherically-symmetric collapse

Daniel R. Terno, Robert B. Mann, Valentina Baccetti

arxiv:1904.00506 v2 · 2019-03-31 · 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{ONWK2ED4UZ74GMRIYG4W7X3QBZ}

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	2026-05-17T23:44:28.859729Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

736cad107ca67fc33228c1b96fdf700e441295e999ac12616422d8522f04e22a

Aliases

arxiv: 1904.00506 · arxiv_version: 1904.00506v2 · doi: 10.48550/arxiv.1904.00506 · pith_short_12: ONWK2ED4UZ74 · pith_short_16: ONWK2ED4UZ74GMRI · pith_short_8: ONWK2ED4

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/ONWK2ED4UZ74GMRIYG4W7X3QBZ \
  | 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: 736cad107ca67fc33228c1b96fdf700e441295e999ac12616422d8522f04e22a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0e3fc2a6cc38d29c522428cc976a8259bbfca8eec4c6912afd6b08e1f9867910",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2019-03-31T23:13:31Z",
    "title_canon_sha256": "d69827a577a17322050a3d6b0019529a2bf16f9081c223b62ea67a8c1d0824f7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.00506",
    "kind": "arxiv",
    "version": 2
  }
}