Pith Number

pith:JLBYULV5

pith:2009:JLBYULV5DL5DPFDN6OBXA5IYXP

not attested not anchored not stored refs pending

Blazar nuclei in radio-loud narrow-line Seyfert 1?

F. Tavecchio, G. Ghisellini, L. Foschini, L. Maraschi, M. Gliozzi, R. M. Sambruna

arxiv:0901.0167 v1 · 2009-01-01 · astro-ph.HE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{JLBYULV5DL5DPFDN6OBXA5IYXP}

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	2026-07-04T17:13:59.565231Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4ac38a2ebd1afa37946df383707518bbd8e6a5c95fcb8e71e6f2665cac9bcb79

Aliases

arxiv: 0901.0167 · arxiv_version: 0901.0167v1 · doi: 10.48550/arxiv.0901.0167 · pith_short_12: JLBYULV5DL5D · pith_short_16: JLBYULV5DL5DPFDN · pith_short_8: JLBYULV5

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/JLBYULV5DL5DPFDN6OBXA5IYXP \
  | 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: 4ac38a2ebd1afa37946df383707518bbd8e6a5c95fcb8e71e6f2665cac9bcb79

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "75d4a14ce75b249b3fd9246d13cbb12547c5087930a4fec19d2922472d53ea41",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-sa/3.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2009-01-01T08:25:36Z",
    "title_canon_sha256": "0d427ff4cf68dc722060520e67bee017da972484c4d6e4b80e64416a517429e7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0901.0167",
    "kind": "arxiv",
    "version": 1
  }
}