Pith Number

pith:KFZCCEPU

pith:2020:KFZCCEPULDUSSENJMGZQTICD6D

not attested not anchored not stored refs pending

NuSTAR observation of Ark 564 reveals the variation of coronal temperature with flux

Amit Pathak, Gulab C Dewangan, Ranjeev Misra, Rathin Sarma, Samuzal Barua, V. Jithesh

arxiv:2001.02570 v1 · 2020-01-08 · 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{KFZCCEPULDUSSENJMGZQTICD6D}

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	2026-07-05T00:36:46.092565Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

51722111f458e92911a961b309a043f0e88769051abf55786bb980c1c0edf1f8

Aliases

arxiv: 2001.02570 · arxiv_version: 2001.02570v1 · doi: 10.48550/arxiv.2001.02570 · pith_short_12: KFZCCEPULDUS · pith_short_16: KFZCCEPULDUSSENJ · pith_short_8: KFZCCEPU

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/KFZCCEPULDUSSENJMGZQTICD6D \
  | 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: 51722111f458e92911a961b309a043f0e88769051abf55786bb980c1c0edf1f8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d96e8a14be3f583f9d4f91f60a3c0f9bd974f53a11d719e2615df9f720e075a8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2020-01-08T15:25:48Z",
    "title_canon_sha256": "0309b03433bf39063913c1a076846b9bb17d1b79464082be22ce619c338ee121"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2001.02570",
    "kind": "arxiv",
    "version": 1
  }
}