Pith Number

pith:HIY52FUM

pith:2025:HIY52FUML4YRLEKFGUQB34REHR

not attested not anchored not stored refs pending

Comparing X-ray Emission Line Fluxes of NGC 5548 to NGC 1068

Divya Patel, Gary Ferland, Maryam Dehghanian

arxiv:2508.13001 v1 · 2025-08-18 · 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{HIY52FUML4YRLEKFGUQB34REHR}

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	2026-07-05T11:55:30.631370Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3a31dd168c5f3115914535201df2243c78dbad25e86e4f8fbd8c9a55850bae2c

Aliases

arxiv: 2508.13001 · arxiv_version: 2508.13001v1 · doi: 10.48550/arxiv.2508.13001 · pith_short_12: HIY52FUML4YR · pith_short_16: HIY52FUML4YRLEKF · pith_short_8: HIY52FUM

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/HIY52FUML4YRLEKFGUQB34REHR \
  | 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: 3a31dd168c5f3115914535201df2243c78dbad25e86e4f8fbd8c9a55850bae2c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b223372c04cd3c73be67c52d9ffb3b9a38f6cbfd3275a30131562e75b33a8715",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2025-08-18T15:23:45Z",
    "title_canon_sha256": "e19c76474cadca4b491378e8270295d93d2d243c94148515838c62be6ea56688"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2508.13001",
    "kind": "arxiv",
    "version": 1
  }
}