Pith Number

pith:UIM2ZRCB

pith:2025:UIM2ZRCBMRSAUDFLTTAMORPNW3

not attested not anchored not stored refs pending

Image of the time-dependent black hole

Kai Lin, Sen Guo, Tao Yu, Yu-Hao Cui, Yu Liang, Yu-Xiang Huang

arxiv:2507.14565 v1 · 2025-07-19 · 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{UIM2ZRCBMRSAUDFLTTAMORPNW3}

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	2026-07-05T11:41:55.854063Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a219acc44164640a0cab9cc0c745edb6ef6536726bce7a7d8930bfc5548f3bbb

Aliases

arxiv: 2507.14565 · arxiv_version: 2507.14565v1 · doi: 10.48550/arxiv.2507.14565 · pith_short_12: UIM2ZRCBMRSA · pith_short_16: UIM2ZRCBMRSAUDFL · pith_short_8: UIM2ZRCB

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/UIM2ZRCBMRSAUDFLTTAMORPNW3 \
  | 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: a219acc44164640a0cab9cc0c745edb6ef6536726bce7a7d8930bfc5548f3bbb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0e9b8fed3606e60ca9723a374d0b8dae2e5b4a168a56a6ab66535d649a584abc",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2025-07-19T10:08:49Z",
    "title_canon_sha256": "9acc1754f7ae4845133adfdba3a76fcc88f429159116c5f7347ac7101bd9cbb2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2507.14565",
    "kind": "arxiv",
    "version": 1
  }
}