Pith Number

pith:6AHKQTOR

pith:2026:6AHKQTORPHDLANG5BC57VKSXEG

not attested not anchored not stored refs pending

The Absolute Age of the Open Cluster NGC 6791 and Its Implications for Galactic Archaeology and Asteroseismic Calibration

Brian Chaboyer, George Dufresne, Rayna Rampalli

arxiv:2605.21682 v1 · 2026-05-20 · astro-ph.SR · 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{6AHKQTORPHDLANG5BC57VKSXEG}

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	2026-05-22T01:03:27.987595Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f00ea84dd179c6b034dd08bbfaaa5721b2cf83f2db3ed3becea1aee92777c728

Aliases

arxiv: 2605.21682 · arxiv_version: 2605.21682v1 · doi: 10.48550/arxiv.2605.21682 · pith_short_12: 6AHKQTORPHDL · pith_short_16: 6AHKQTORPHDLANG5 · pith_short_8: 6AHKQTOR

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/6AHKQTORPHDLANG5BC57VKSXEG \
  | 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: f00ea84dd179c6b034dd08bbfaaa5721b2cf83f2db3ed3becea1aee92777c728

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "64dc943b6c4ebc8ec644694c42fe320fc3a72444b8c9d34fd296330fdc644f52",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2026-05-20T19:39:12Z",
    "title_canon_sha256": "16ddd1a0b09a0e96fd73aba900bbeae4e1c395aa5318fd1db8562a6ff2e69e8b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.21682",
    "kind": "arxiv",
    "version": 1
  }
}