Pith Number

pith:AHUPN24B

pith:2013:AHUPN24BL53SERM77GBASWKDYQ

not attested not anchored not stored refs pending

Flare-like variability of the Mg II\lambda 2800\AA\ emission line in the gamma-ray blazar 3C 454.3

2), (2) Aalto University Mets\"ahovi Radio Observatory, (3) INAOE, (4) Tuorla Observatory, (5) Physikalisches Institut, (6) Astronomical Observatory Belgrade, (7) MPIfR, 8), (8) Institut f\"ur Experimentalphysik, A. Carrami\~nana (3), A. L\"ahteenm\"aki (2). ((1) Finnish Centre for Astronomy with ESO (FINCA), A. Lobanov (7, E. Valtaoja (4), J. Le\'on-Tavares (1, L. Carrasco (3), L. C. Popovic\altaffilmark (6), M. Tornikoski (2), T. G. Arshakian (5), Universit\"at Hamburg), Universit\"at zu K\"oln, V. Chavushyan (3), V. Pati\~no-\'Alvarez (3)

arxiv:1301.3064 v1 · 2013-01-14 · 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{AHUPN24BL53SERM77GBASWKDYQ}

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	2026-05-18T01:52:12.543369Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

01e8f6eb815f7722459ff982095943c40110b03f63504d15c268b202deee8580

Aliases

arxiv: 1301.3064 · arxiv_version: 1301.3064v1 · doi: 10.48550/arxiv.1301.3064 · pith_short_12: AHUPN24BL53S · pith_short_16: AHUPN24BL53SERM7 · pith_short_8: AHUPN24B

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/AHUPN24BL53SERM77GBASWKDYQ \
  | 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: 01e8f6eb815f7722459ff982095943c40110b03f63504d15c268b202deee8580

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "33df69665426654f0ebb690add9eb0b2d053b9db889749f2c5903f7c5712f5fb",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2013-01-14T17:13:44Z",
    "title_canon_sha256": "a0407829baef000d620faff3bf886953571664c3f50d8630305e34a083bae663"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1301.3064",
    "kind": "arxiv",
    "version": 1
  }
}