Pith Number

pith:SPRYJZOI

pith:2011:SPRYJZOIL6QEB5U7NCEVK2YWZJ

not attested not anchored not stored refs pending

Chemical properties in the most distant radio galaxy

Alessandro Marconi, Kenta Matsuoka, Roberto Maiolino, Tohru Nagao, Yoshiaki Taniguchi

arxiv:1107.5116 v1 · 2011-07-26 · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SPRYJZOIL6QEB5U7NCEVK2YWZJ}

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	2026-05-18T02:01:09.969595Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

93e384e5c85fa040f69f6889556b16ca64e671b2fac315f3f6e120e748d77ea5

Aliases

arxiv: 1107.5116 · arxiv_version: 1107.5116v1 · doi: 10.48550/arxiv.1107.5116 · pith_short_12: SPRYJZOIL6QE · pith_short_16: SPRYJZOIL6QEB5U7 · pith_short_8: SPRYJZOI

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/SPRYJZOIL6QEB5U7NCEVK2YWZJ \
  | 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: 93e384e5c85fa040f69f6889556b16ca64e671b2fac315f3f6e120e748d77ea5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f33ad036e331b3031946ad972b6c2acbc73e60905ab260d169897be65bd6d68a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2011-07-26T04:41:36Z",
    "title_canon_sha256": "86b3df4e73524e89893a5c95ea5c4cfc16bfe704552a161e43abf4bc90688ddb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1107.5116",
    "kind": "arxiv",
    "version": 1
  }
}