Pith Number

pith:EKRKMROR

pith:2013:EKRKMROR4GHRRB7LEVVHYIUKBL

not attested not anchored not stored refs pending

The core shift effect in the blazar 3C 454.3

A. E. Volvach, A. Lahteenmaki, A. M. Kutkin, A. P. Lobanov, H. D. Aller, K. V. Sokolovsky, L. N. Volvach, M. F. Aller, M. M. Lisakov, M. Tornikoski, P. A. Voytsik, T. Savolainen, Y. Y. Kovalev

arxiv:1307.4100 v4 · 2013-07-15 · astro-ph.HE · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EKRKMROR4GHRRB7LEVVHYIUKBL}

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	2026-05-18T01:37:33.252618Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

22a2a645d1e18f1887eb256a7c228a0ad7faa5afd9809d605f3b6de74e5610ed

Aliases

arxiv: 1307.4100 · arxiv_version: 1307.4100v4 · doi: 10.48550/arxiv.1307.4100 · pith_short_12: EKRKMROR4GHR · pith_short_16: EKRKMROR4GHRRB7L · pith_short_8: EKRKMROR

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/EKRKMROR4GHRRB7LEVVHYIUKBL \
  | 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: 22a2a645d1e18f1887eb256a7c228a0ad7faa5afd9809d605f3b6de74e5610ed

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1ff86ac87a43542e3de3497486a7869796a483eb3a05eae81db3bbabf4ae388e",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2013-07-15T20:44:02Z",
    "title_canon_sha256": "d6b26c5db979f975d2e551f6be4afdc3c077c569f2f9904f8d569f1cfbac5910"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1307.4100",
    "kind": "arxiv",
    "version": 4
  }
}