Pith Number

pith:NKRS3WW2

pith:2026:NKRS3WW2TLXSEZ6IOUDRJT2JDW

not attested not anchored not stored refs pending

XRISM Time-resolved Fe K$\alpha$ Spectroscopy of NGC 4395: Time-variable Inner-disk Emission

Hirofumi Noda, Misaki Mizumoto, Satoshi Yamada, Shoji Ogawa, Taiki Kawamuro, Yoshiyuki Inoue

arxiv:2606.21180 v1 · 2026-06-19 · astro-ph.HE · 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{NKRS3WW2TLXSEZ6IOUDRJT2JDW}

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	2026-06-23T01:12:32.629294Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6aa32ddada9aef2267c8750714cf491dbe64a2adab50a25120546eb4edac2e73

Aliases

arxiv: 2606.21180 · arxiv_version: 2606.21180v1 · doi: 10.48550/arxiv.2606.21180 · pith_short_12: NKRS3WW2TLXS · pith_short_16: NKRS3WW2TLXSEZ6I · pith_short_8: NKRS3WW2

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/NKRS3WW2TLXSEZ6IOUDRJT2JDW \
  | 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: 6aa32ddada9aef2267c8750714cf491dbe64a2adab50a25120546eb4edac2e73

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c6aa7c0016d717592c4851c1238233e8f2e8d910cb21a011e660d656b5e7b0d2",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2026-06-19T07:47:49Z",
    "title_canon_sha256": "1d089e59a679d6947d4c340abf1b19b5504d8f70a84a06efa6adabf6a1497dee"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.21180",
    "kind": "arxiv",
    "version": 1
  }
}