Pith Number

pith:OHZKZNJ7

pith:2026:OHZKZNJ7YGPOWKJ7B5LKNMKKNW

not attested not anchored not stored refs pending

Photon surfaces extension in general spherical dust collapse

Camilla Lucamarini, Roberto Giamb\`o

arxiv:2606.19809 v1 · 2026-06-18 · 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{OHZKZNJ7YGPOWKJ7B5LKNMKKNW}

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	2026-06-19T16:12:35.870241Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

71f2acb53fc19eeb293f0f56a6b14a6daf5efb56ffedfa16eb5a65b1f8825cc4

Aliases

arxiv: 2606.19809 · arxiv_version: 2606.19809v1 · doi: 10.48550/arxiv.2606.19809 · pith_short_12: OHZKZNJ7YGPO · pith_short_16: OHZKZNJ7YGPOWKJ7 · pith_short_8: OHZKZNJ7

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/OHZKZNJ7YGPOWKJ7B5LKNMKKNW \
  | 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: 71f2acb53fc19eeb293f0f56a6b14a6daf5efb56ffedfa16eb5a65b1f8825cc4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e7dbc0f0397915caab03ee739fdfdbfbb256393769e0d62754d5222c92eb6ff5",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2026-06-18T05:26:22Z",
    "title_canon_sha256": "6c834bc249fe78e5a76e2012c2cb3a1af7b6aaa66ad89051e5b7240bf45ae349"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.19809",
    "kind": "arxiv",
    "version": 1
  }
}