Pith Number

pith:LRO6A7GL

pith:2026:LRO6A7GL26DD3ZM363VQF7UJ4F

not attested not anchored not stored refs pending

Inferences for f(R) Models from Late-Time Megamaser Observational Data

Abha Dev Habib, Nisha Rani, Umang

arxiv:2607.21129 v1 · 2026-07-23 · 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{LRO6A7GL26DD3ZM363VQF7UJ4F}

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	2026-07-24T01:23:54.445707Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5c5de07ccbd7863de59bf6eb02fe89e15fdef1f23e72ba19b36fb48c7a8c57c0

Aliases

arxiv: 2607.21129 · arxiv_version: 2607.21129v1 · doi: 10.48550/arxiv.2607.21129 · pith_short_12: LRO6A7GL26DD · pith_short_16: LRO6A7GL26DD3ZM3 · pith_short_8: LRO6A7GL

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/LRO6A7GL26DD3ZM363VQF7UJ4F \
  | 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: 5c5de07ccbd7863de59bf6eb02fe89e15fdef1f23e72ba19b36fb48c7a8c57c0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f54046f786ef9b32dd724a89141912a7af333d60143991e7fc24aced1eeef011",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/publicdomain/zero/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2026-07-23T10:05:23Z",
    "title_canon_sha256": "c4cb7d21bb2b4506b0e43c5ffd7cdb2c9502a8b87bfdef08ac34b5820ac77081"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.21129",
    "kind": "arxiv",
    "version": 1
  }
}