Pith Number

pith:H6OZMIS4

pith:2008:H6OZMIS4Y6TGBNADPCOMOUFXGA

not attested not anchored not stored refs pending

Modification of the gamma-ray spectra by internal absorption in OVV blazars: The example cases of 3C 273 and 3C 279

J. Sitarek, W. Bednarek

arxiv:0807.4228 v1 · 2008-07-26 · 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{H6OZMIS4Y6TGBNADPCOMOUFXGA}

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	2026-05-18T03:20:33.296112Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3f9d96225cc7a660b403789cc750b730159d11c4d4aaec635ac3a959d81de622

Aliases

arxiv: 0807.4228 · arxiv_version: 0807.4228v1 · doi: 10.48550/arxiv.0807.4228 · pith_short_12: H6OZMIS4Y6TG · pith_short_16: H6OZMIS4Y6TGBNAD · pith_short_8: H6OZMIS4

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/H6OZMIS4Y6TGBNADPCOMOUFXGA \
  | 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: 3f9d96225cc7a660b403789cc750b730159d11c4d4aaec635ac3a959d81de622

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "767bab6c023f91d4961317f5a68499459f532131bb66e09833e786b51cb893ac",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph",
    "submitted_at": "2008-07-26T09:32:27Z",
    "title_canon_sha256": "a62b975b5174065ca9257d5bc2fb5b9340ed6a7e4a366eb1b16ae6cee2bd0d81"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0807.4228",
    "kind": "arxiv",
    "version": 1
  }
}