Pith Number

pith:2F7NB3HY

pith:2007:2F7NB3HYXUBPTDDBE3MDNU6FNG

not attested not anchored not stored refs pending

ROXA J081009.9+384757.0: a $10^{47}$ erg/s blazar with hard X-ray synchrotron peak or a new type of radio loud AGN?

D.N. Burrows, E. Cavazzuti, E. Massaro, G. Chincarini, G. Tagliaferri, G. Tosti, M. McMath Chester, M. Perri, N. Gehrels, P. Giommi, P. Padovani, S. Colafrancesco, S. Turriziani

arxiv:astro-ph/0703491 v1 · 2007-03-19 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2F7NB3HYXUBPTDDBE3MDNU6FNG}

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	2026-07-04T17:07:48.094564Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d17ed0ecf8bd02f98c6126d836d3c5698132e65e7e022b7116fa621fae05db35

Aliases

arxiv: astro-ph/0703491 · arxiv_version: astro-ph/0703491v1 · doi: 10.48550/arxiv.astro-ph/0703491 · pith_short_12: 2F7NB3HYXUBP · pith_short_16: 2F7NB3HYXUBPTDDB · pith_short_8: 2F7NB3HY

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/2F7NB3HYXUBPTDDBE3MDNU6FNG \
  | 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: d17ed0ecf8bd02f98c6126d836d3c5698132e65e7e022b7116fa621fae05db35

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1f01d413151f297c2e21e47c305da783612d63f95aa070e46d0a4a17c52d97e6",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2007-03-19T15:42:50Z",
    "title_canon_sha256": "5fc02b8d95d47b005985b888e4716e62beeab7cb1b434709d90e15e2fb476b01"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0703491",
    "kind": "arxiv",
    "version": 1
  }
}