Pith Number

pith:GHZUUC5E

pith:2026:GHZUUC5EAEFRUGQIIDH4GWSPK4

not attested not anchored not stored refs pending

Novel extended inner shadow in images of Johannsen-Psaltis black holes with thin accretion disks

Minyong Guo, Xiaobao Wang, Xin-Yang Wang, Xinyu Wang

arxiv:2607.18751 v1 · 2026-07-21 · 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{GHZUUC5EAEFRUGQIIDH4GWSPK4}

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	2026-07-22T01:23:10.059013Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

31f34a0ba4010b1a1a0840cfc35a4f57051f57bd3a826d2834139fe80a5efbb0

Aliases

arxiv: 2607.18751 · arxiv_version: 2607.18751v1 · doi: 10.48550/arxiv.2607.18751 · pith_short_12: GHZUUC5EAEFR · pith_short_16: GHZUUC5EAEFRUGQI · pith_short_8: GHZUUC5E

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/GHZUUC5EAEFRUGQIIDH4GWSPK4 \
  | 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: 31f34a0ba4010b1a1a0840cfc35a4f57051f57bd3a826d2834139fe80a5efbb0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "af2982e028d71ec1242b8bc40a8b4291dd76f1f114e2275fc8eee60106b61a0e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2026-07-21T06:18:31Z",
    "title_canon_sha256": "877f133bf0395aab554ba3efcd5c9b41c81485d15d58710cf3a9bd147aded056"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.18751",
    "kind": "arxiv",
    "version": 1
  }
}