Pith Number

pith:UFHOY75J

pith:2023:UFHOY75JFWPUNJD2QFBB6LZB7B

not attested not anchored not stored refs pending

A redshifted excess in the broad emission lines after the flare of the $\gamma$-ray narrow-line Seyfert 1 PKS 2004-447

A. F. Rojas, C. Wolf, E. Congiu, E. Sani, J. Kotilainen, M. Berton, P. Marziani, R. Webster, W. Hon

arxiv:2303.12109 v1 · 2023-03-21 · 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{UFHOY75JFWPUNJD2QFBB6LZB7B}

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	2026-07-05T06:04:30.745675Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a14eec7fa92d9f46a47a81421f2f21f879770341faf81411547d3965acd1ddeb

Aliases

arxiv: 2303.12109 · arxiv_version: 2303.12109v1 · doi: 10.48550/arxiv.2303.12109 · pith_short_12: UFHOY75JFWPU · pith_short_16: UFHOY75JFWPUNJD2 · pith_short_8: UFHOY75J

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/UFHOY75JFWPUNJD2QFBB6LZB7B \
  | 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: a14eec7fa92d9f46a47a81421f2f21f879770341faf81411547d3965acd1ddeb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "50eeb04f3082cad3fc85ce223556316bec3a38488e069ad9bb98f745c1fec790",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2023-03-21T18:01:30Z",
    "title_canon_sha256": "b0744973b4470e403f593904ec00be1aaefe895055c780cfdf18515e09454f33"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2303.12109",
    "kind": "arxiv",
    "version": 1
  }
}