Pith Number

pith:WNIAWKLW

pith:2019:WNIAWKLWDRLDAJOLO44PUJ3MB3

not attested not anchored not stored refs pending

Cosmological test using the Hubble diagram of high-z quasars

Fulvio Melia

arxiv:1907.13127 v1 · 2019-07-30 · astro-ph.CO · 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{WNIAWKLWDRLDAJOLO44PUJ3MB3}

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	2026-07-05T02:21:12.567594Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b3500b29761c563025cb7738fa276c0efc6a692c19ea231a92f9de1399a4a50d

Aliases

arxiv: 1907.13127 · arxiv_version: 1907.13127v1 · doi: 10.48550/arxiv.1907.13127 · pith_short_12: WNIAWKLWDRLD · pith_short_16: WNIAWKLWDRLDAJOL · pith_short_8: WNIAWKLW

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/WNIAWKLWDRLDAJOLO44PUJ3MB3 \
  | 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: b3500b29761c563025cb7738fa276c0efc6a692c19ea231a92f9de1399a4a50d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "682f783ca5db5fa48e46ef13d3a73a42a5996868c40bd202b8e60cac87e3492a",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2019-07-30T14:35:55Z",
    "title_canon_sha256": "b555a50eaa403543fb7d8a2ea9e10e2f30d1e2fb21adee6ced271ddd4552b1fb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.13127",
    "kind": "arxiv",
    "version": 1
  }
}