Pith Number

pith:U7OMTHLB

pith:2024:U7OMTHLBS5XLVHB3RNZWNMG3LS

not attested not anchored not stored refs pending

On the implausible physical implications of a claimed lensed neutral hydrogen detection at redshift z = 1.3

Danail Obreschkow, Ian Heywood, Roger P. Deane, Tariq Blecher

arxiv:2409.06812 v1 · 2024-09-10 · astro-ph.GA · 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{U7OMTHLBS5XLVHB3RNZWNMG3LS}

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	2026-07-05T09:05:41.501468Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a7dcc99d61976eba9c3b8b7366b0db5c91fea0103a454f2e53fa269146cfbef4

Aliases

arxiv: 2409.06812 · arxiv_version: 2409.06812v1 · doi: 10.48550/arxiv.2409.06812 · pith_short_12: U7OMTHLBS5XL · pith_short_16: U7OMTHLBS5XLVHB3 · pith_short_8: U7OMTHLB

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/U7OMTHLBS5XLVHB3RNZWNMG3LS \
  | 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: a7dcc99d61976eba9c3b8b7366b0db5c91fea0103a454f2e53fa269146cfbef4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c24c6c85781c575362bf64bdc5d1dfc6d447bfaa40babc6a3d6a20a81b71ee30",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2024-09-10T18:35:17Z",
    "title_canon_sha256": "5bbf299d024ce673989f2d29f2630ea6897893c1cb24f70fe1aba8572e1855ad"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2409.06812",
    "kind": "arxiv",
    "version": 1
  }
}