Pith Number

pith:USJ3OKCN

pith:2015:USJ3OKCNW2ITAVFOV6RYXU5TLJ

not attested not anchored not stored refs pending

Relationship between X-ray spectral index and X-ray Eddington ratio for Mrk 335 and Ark 564

A. Pathak, G. Dewangan, J. K. Sarma, R. Misra, R. Sarma, S. Tripathi

arxiv:1501.00908 v1 · 2015-01-05 · astro-ph.GA · astro-ph.HE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{USJ3OKCNW2ITAVFOV6RYXU5TLJ}

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	2026-05-18T01:41:14.548286Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a493b7284db6913054aeafa38bd3b35a674826027b6c023cf15f4a76cf5fb254

Aliases

arxiv: 1501.00908 · arxiv_version: 1501.00908v1 · doi: 10.48550/arxiv.1501.00908 · pith_short_12: USJ3OKCNW2IT · pith_short_16: USJ3OKCNW2ITAVFO · pith_short_8: USJ3OKCN

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/USJ3OKCNW2ITAVFOV6RYXU5TLJ \
  | 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: a493b7284db6913054aeafa38bd3b35a674826027b6c023cf15f4a76cf5fb254

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "18918d6f942ebcb6f060f8d1604ae907a39d8a5178956005848275e47811bc23",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2015-01-05T16:12:24Z",
    "title_canon_sha256": "1975f2a6dd1423b81acc635f2a07dedd99dcb6547b41c9756111b98a9a12c610"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1501.00908",
    "kind": "arxiv",
    "version": 1
  }
}