Pith Number

pith:B3LWFAJB

pith:2026:B3LWFAJBK3BLOSGSML55263O4Q

not attested not anchored not stored refs pending

Quantitative Black Hole Imaging Laboratory with the Black Hole Vision App: I. Schwarzschild Spacetime

Lior M. Burko

arxiv:2605.21887 v1 · 2026-05-21 · gr-qc · physics.ed-ph

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{B3LWFAJBK3BLOSGSML55263O4Q}

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	2026-05-22T01:04:13.090827Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0ed762812156c2b748d262fbdd7b6ee421359821efa9b9df02afab5b3ed02c40

Aliases

arxiv: 2605.21887 · arxiv_version: 2605.21887v1 · doi: 10.48550/arxiv.2605.21887 · pith_short_12: B3LWFAJBK3BL · pith_short_16: B3LWFAJBK3BLOSGS · pith_short_8: B3LWFAJB

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/B3LWFAJBK3BLOSGSML55263O4Q \
  | 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: 0ed762812156c2b748d262fbdd7b6ee421359821efa9b9df02afab5b3ed02c40

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a850d384a1a2ad3d9b92cb0054f4853b8d1b2acb78e97dd6de73ff8e4d93df1d",
    "cross_cats_sorted": [
      "physics.ed-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2026-05-21T01:46:46Z",
    "title_canon_sha256": "35d9237dbbc2dc9b4c3f4de7031b81ac250c42aca939b122c888d2451cb27d43"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.21887",
    "kind": "arxiv",
    "version": 1
  }
}