Pith Number

pith:SSGOWNX3

pith:2020:SSGOWNX3SUUJ7I7Q2JLL7HHR25

not attested not anchored not stored refs pending

Variations of the physical parameters of the blazar Mrk 421 based on the analysis of the spectral energy distributions

Fumiya Imazato, Makoto Uemura, Masanori Ohno, Ryosuke Itoh, Yasushi Fukazawa, Yurika Yamada

arxiv:2003.08016 v1 · 2020-03-18 · 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{SSGOWNX3SUUJ7I7Q2JLL7HHR25}

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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	2026-07-05T01:05:45.315396Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

948ceb36fb95289fa3f0d256bf9cf1d76e4a2cb67c3251786ea33b49ed4f9460

Aliases

arxiv: 2003.08016 · arxiv_version: 2003.08016v1 · doi: 10.48550/arxiv.2003.08016 · pith_short_12: SSGOWNX3SUUJ · pith_short_16: SSGOWNX3SUUJ7I7Q · pith_short_8: SSGOWNX3

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/SSGOWNX3SUUJ7I7Q2JLL7HHR25 \
  | 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: 948ceb36fb95289fa3f0d256bf9cf1d76e4a2cb67c3251786ea33b49ed4f9460

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d48da1796a787aec25e9fbca952e0c605e1082ec3bd6a0c9a093b461d6713930",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2020-03-18T02:20:08Z",
    "title_canon_sha256": "c58335af66bb1420e084d66161b25430683a4c10e5ccf4ef70ef45bf88216713"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2003.08016",
    "kind": "arxiv",
    "version": 1
  }
}