Pith Number

pith:XI2YWWF4

pith:2026:XI2YWWF4TX7F72GPYZNMPM3QZW

not attested not anchored not stored refs pending

Black Boxes in Black Hole Imaging

Jamee Elder, Juliusz Doboszewski

arxiv:2607.02110 v1 · 2026-07-02 · physics.hist-ph · astro-ph.HE · astro-ph.IM · 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{XI2YWWF4TX7F72GPYZNMPM3QZW}

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	2026-07-03T01:17:42.504437Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ba358b58bc9dfe5fe8cfc65ac7b370cd858bb804bdb2d803e19422fcee5eab48

Aliases

arxiv: 2607.02110 · arxiv_version: 2607.02110v1 · doi: 10.48550/arxiv.2607.02110 · pith_short_12: XI2YWWF4TX7F · pith_short_16: XI2YWWF4TX7F72GP · pith_short_8: XI2YWWF4

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/XI2YWWF4TX7F72GPYZNMPM3QZW \
  | 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: ba358b58bc9dfe5fe8cfc65ac7b370cd858bb804bdb2d803e19422fcee5eab48

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f0dc9617f1011c2f920042f9f7c0100c6bfb98b90fc48c3ea5a85f024a36599d",
    "cross_cats_sorted": [
      "astro-ph.HE",
      "astro-ph.IM",
      "gr-qc"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "physics.hist-ph",
    "submitted_at": "2026-07-02T12:43:48Z",
    "title_canon_sha256": "37dee5b66ba7356714d4d1c8bd2abe1885785e0d0bb29f7bb8d950fb9b174cdd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.02110",
    "kind": "arxiv",
    "version": 1
  }
}