Pith Number

pith:5UNAN4DR

pith:2017:5UNAN4DRTH6APTHGU6RVHX2CQD

not attested not anchored not stored refs pending

Accelerated cosmological expansion without tension in the Hubble parameter

Maurice H.P.M. van Putten

arxiv:1707.02588 v2 · 2017-07-09 · astro-ph.CO · gr-qc

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5UNAN4DRTH6APTHGU6RVHX2CQD}

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	2026-05-18T00:35:13.549914Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ed1a06f07199fc07cce6a7a353df4280cde268d9735ffdf60e38a939f0d7f81c

Aliases

arxiv: 1707.02588 · arxiv_version: 1707.02588v2 · doi: 10.48550/arxiv.1707.02588 · pith_short_12: 5UNAN4DRTH6A · pith_short_16: 5UNAN4DRTH6APTHG · pith_short_8: 5UNAN4DR

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/5UNAN4DRTH6APTHGU6RVHX2CQD \
  | 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: ed1a06f07199fc07cce6a7a353df4280cde268d9735ffdf60e38a939f0d7f81c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7bd904790cf26f6e3303838bfb288a00c711496acbd62c34a727ef9034b8e06b",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2017-07-09T14:39:04Z",
    "title_canon_sha256": "3aaa68f72b3623d0ebe7f93d0412ada3e10b107cdd5d262381a439b1c21ffcae"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1707.02588",
    "kind": "arxiv",
    "version": 2
  }
}