Pith Number

pith:ZB3EPBHP

pith:2021:ZB3EPBHPXPXCSI37TVTYEUZFCD

not attested not anchored not stored refs pending

Relentless multi-wavelength variability of Mrk 421 and Mrk 501

Adelina Kalenski, Adrian Biland, Aleksander Paravac, Alison Mitchell, Axel Arbet-Engels, Bernd Schleicher, Daniela Dorner, Dominik Baack, Dominik Elsaesser, Dominik Neise, Dorothee Hildebrand, Jens Buss, Karl Mannheim, Laura Eisenberger, Matteo Balbo, Maximilian Noethe, Roland Walter, Roman Iotov, Thomas Bretz, Vitalii Sliusar, Wolfgang Rhode

arxiv:2108.08130 v1 · 2021-08-18 · 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{ZB3EPBHPXPXCSI37TVTYEUZFCD}

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	2026-07-05T03:06:59.910564Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c8764784efbbee29237f9d6782532510d48e7752d2124ebaf4488a93f03888a4

Aliases

arxiv: 2108.08130 · arxiv_version: 2108.08130v1 · doi: 10.48550/arxiv.2108.08130 · pith_short_12: ZB3EPBHPXPXC · pith_short_16: ZB3EPBHPXPXCSI37 · pith_short_8: ZB3EPBHP

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/ZB3EPBHPXPXCSI37TVTYEUZFCD \
  | 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: c8764784efbbee29237f9d6782532510d48e7752d2124ebaf4488a93f03888a4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a93091b2fa8ff94d4bf1ccf9b27d1a2ed43a522345884256080101760aa9c03e",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2021-08-18T13:15:15Z",
    "title_canon_sha256": "caa9d41839ae879273d9fcf54525ecfc64345aa98ffb1901953bee1bf343e910"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2108.08130",
    "kind": "arxiv",
    "version": 1
  }
}