Pith Number

pith:SFSYL3QQ

pith:2008:SFSYL3QQU3ZW2LZTBU5KFDTVHY

not attested not anchored not stored refs pending

The cosmological consequence of an obscured AGN population on the radiation efficiency

Alejo Martinez-Sansigre, Andrew M. Taylor

arxiv:0810.3920 v1 · 2008-10-21 · 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{SFSYL3QQU3ZW2LZTBU5KFDTVHY}

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	2026-05-18T04:29:25.805108Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

916585ee10a6f36d2f330d3aa28e753e17771f8fb3f4ef5088a344e81934c773

Aliases

arxiv: 0810.3920 · arxiv_version: 0810.3920v1 · doi: 10.48550/arxiv.0810.3920 · pith_short_12: SFSYL3QQU3ZW · pith_short_16: SFSYL3QQU3ZW2LZT · pith_short_8: SFSYL3QQ

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/SFSYL3QQU3ZW2LZTBU5KFDTVHY \
  | 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: 916585ee10a6f36d2f330d3aa28e753e17771f8fb3f4ef5088a344e81934c773

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d4028f70aaf3612103280c034589cca43248646cc23d1358933be6dff7e51ded",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph",
    "submitted_at": "2008-10-21T20:05:27Z",
    "title_canon_sha256": "e0ec1c525b65d8a77cc7f6e46c4c705b5cb5765b5b0fdf5bfc8e930594498c46"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0810.3920",
    "kind": "arxiv",
    "version": 1
  }
}