Pith Number

pith:LL5UV5LB

pith:2021:LL5UV5LBIAHWUIM7DNN4QBISR3

not attested not anchored not stored refs pending

Resolving the Radio Emission from the Quasar P172+18 at $z = 6.82$

Chiara Mazzucchelli, Christopher L. Carilli, Eduardo Ba\~nados, Emmanuel Momjian, Fabian Walter

arxiv:2103.03481 v1 · 2021-03-05 · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{LL5UV5LBIAHWUIM7DNN4QBISR3}

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	2026-07-05T02:31:54.166712Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5afb4af561400f6a219f1b5bc805128ef9eaf03e2791898005c5fdc062213dee

Aliases

arxiv: 2103.03481 · arxiv_version: 2103.03481v1 · doi: 10.48550/arxiv.2103.03481 · pith_short_12: LL5UV5LBIAHW · pith_short_16: LL5UV5LBIAHWUIM7 · pith_short_8: LL5UV5LB

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/LL5UV5LBIAHWUIM7DNN4QBISR3 \
  | 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: 5afb4af561400f6a219f1b5bc805128ef9eaf03e2791898005c5fdc062213dee

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fe18ce25fd4aa9ab11c4a58d2493989e321196f270f438c014e7961aa87206be",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2021-03-05T05:51:37Z",
    "title_canon_sha256": "89c4a531a226006db1e3a6cf42741038d5afc0e16eae797a0ab7264b094c2f84"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2103.03481",
    "kind": "arxiv",
    "version": 1
  }
}