Pith Number

pith:C4SNBP4Q

pith:2026:C4SNBP4QUYHFZABTYHOSMRA7WN

not attested not anchored not stored refs pending

Closing the UV Gap: Rest-frame EUV science from high-redshift QSOs as a legacy-defining capability

J. Michael Shull, Rongmon Bordoloi

arxiv:2605.28948 v1 · 2026-05-27 · 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{C4SNBP4QUYHFZABTYHOSMRA7WN}

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	2026-05-29T01:04:41.282658Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1724d0bf90a60e5c8033c1dd26441fb3536ff6e3710745c3cb65363322551239

Aliases

arxiv: 2605.28948 · arxiv_version: 2605.28948v1 · doi: 10.48550/arxiv.2605.28948 · pith_short_12: C4SNBP4QUYHF · pith_short_16: C4SNBP4QUYHFZABT · pith_short_8: C4SNBP4Q

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/C4SNBP4QUYHFZABTYHOSMRA7WN \
  | 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: 1724d0bf90a60e5c8033c1dd26441fb3536ff6e3710745c3cb65363322551239

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c402e0b14b9c0f192fd5b4abb3ef70fcc7890f565171f8868eed891572a37512",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2026-05-27T18:00:06Z",
    "title_canon_sha256": "95a79db49f0fb465ea6323fd54a7396ad2df9c894818df9f86fa10e81499e3d9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.28948",
    "kind": "arxiv",
    "version": 1
  }
}