Pith Number

pith:QHTR45WA

pith:2026:QHTR45WAMNCSFKWAPQT6Y3WQPE

not attested not anchored not stored refs pending

TBD LBD: The nature of `little blue dots'

Albert Sneppen, Darach Watson, Georgios Nikopoulos, James H. Matthews

arxiv:2606.12509 v1 · 2026-06-10 · astro-ph.GA · 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{QHTR45WAMNCSFKWAPQT6Y3WQPE}

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.

Cited by

1 paper in Pith

Little Red and Blue Dots: AGN-excited narrow lines, Lyman-$\alpha$ emission, and resemblance to standard quasars

Receipt and verification

First computed	2026-06-12T00:07:52.858172Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

81e71e76c0634522aac07c27ec6ed079329a6f05599901cab8341f725fa04de3

Aliases

arxiv: 2606.12509 · arxiv_version: 2606.12509v1 · doi: 10.48550/arxiv.2606.12509 · pith_short_12: QHTR45WAMNCS · pith_short_16: QHTR45WAMNCSFKWA · pith_short_8: QHTR45WA

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/QHTR45WAMNCSFKWAPQT6Y3WQPE \
  | 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: 81e71e76c0634522aac07c27ec6ed079329a6f05599901cab8341f725fa04de3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e04418014f71fb5cd1509c5f47dab07bfe57ca01042de587a4fb624a29b5b10d",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2026-06-10T18:00:00Z",
    "title_canon_sha256": "c7eeb889327552b12408472b10b8d07b15b924fff0260d14160396f800358d98"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.12509",
    "kind": "arxiv",
    "version": 1
  }
}