Pith Number

pith:YP42UOID

pith:2008:YP42UOIDCJ3FTTDYJFMRKXX5KM

not attested not anchored not stored refs pending

Emission from Large-scale Jets in Quasars

Yasunobu Uchiyama (SLAC/KIPAC)

arxiv:0809.2620 v1 · 2008-09-15 · 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{YP42UOIDCJ3FTTDYJFMRKXX5KM}

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	2026-05-18T04:27:15.322090Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c3f9aa3903127659cc784959155efd533c37b8b97c706c013e014b8d82c60019

Aliases

arxiv: 0809.2620 · arxiv_version: 0809.2620v1 · doi: 10.48550/arxiv.0809.2620 · pith_short_12: YP42UOIDCJ3F · pith_short_16: YP42UOIDCJ3FTTDY · pith_short_8: YP42UOID

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/YP42UOIDCJ3FTTDYJFMRKXX5KM \
  | 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: c3f9aa3903127659cc784959155efd533c37b8b97c706c013e014b8d82c60019

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "43c1e4f621a9601a06caf4f45f458640679e6755c2005177cc59a6aeb58226e7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph",
    "submitted_at": "2008-09-15T21:20:20Z",
    "title_canon_sha256": "1de754b18f9c8eb1e0840a7d174af71ae61f0857b777156cb8c632baf6a7921b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0809.2620",
    "kind": "arxiv",
    "version": 1
  }
}