Pith Number

pith:2F3ERL3U

pith:2025:2F3ERL3UDDGTK3OLJLR2GLK3RT

not attested not anchored not stored refs pending

The Intermediate-Mass Black Hole Reverberation Mapping Project: First Detection of Mid-Infrared Lags in Prototypical IMBHs in NGC 4395 and POX 52

Alok C. Gupta, Andjelka B. Kova\v{c}evi\'c, Dragana Ili\'c, Haicheng Feng, Hengxiao Guo, Jamie Stevens, Jingbo Sun, Junxian Wang, Luis C. Ho, Luka \v{C}. Popovi\'c, Mar Mezcua, Minfeng Gu, Mouyuan Sun, Oliver Vince, Paula S\'anchez-S\'aez, Paulina Lira, Philip G. Edwards, Rongfeng Shen, Samuzal Barua, Shasha Li, Shu Wang, Tao An, Vivian U, Wenwen Zuo, Xuebing Wu, Zhefu Yu, Zhenya Zheng, Zhen-Yi Cai

arxiv:2504.21711 v2 · 2025-04-30 · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2F3ERL3UDDGTK3OLJLR2GLK3RT}

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	2026-07-05T11:45:34.444558Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d17648af7418cd356dcb4ae3a32d5b8cd37e8b375e072140cc86c7e91f1d4282

Aliases

arxiv: 2504.21711 · arxiv_version: 2504.21711v2 · doi: 10.48550/arxiv.2504.21711 · pith_short_12: 2F3ERL3UDDGT · pith_short_16: 2F3ERL3UDDGTK3OL · pith_short_8: 2F3ERL3U

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/2F3ERL3UDDGTK3OLJLR2GLK3RT \
  | 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: d17648af7418cd356dcb4ae3a32d5b8cd37e8b375e072140cc86c7e91f1d4282

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "17aff4c3a05a3da851b75233f500b4a42c9fefdaa2569df79ba9e1b1f197af82",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/publicdomain/zero/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2025-04-30T14:54:56Z",
    "title_canon_sha256": "9a0337aa79ee5496a9e2f5b17875d98f43b4b14a7485f7ad5145397ea90d5975"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2504.21711",
    "kind": "arxiv",
    "version": 2
  }
}