Pith Number

pith:AY3CR3K4

pith:2018:AY3CR3K4DR2XSCXNKGC7W5IFCP

not attested not anchored not stored refs pending

Ruprecht 106: A riddle, wrapped in a mystery, inside an enigma

Aaron Dotter, Anna F. Marino, Antonino P. Milone, Ata Sarajedini, Charlie Conroy

arxiv:1808.05582 v2 · 2018-08-16 · 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{AY3CR3K4DR2XSCXNKGC7W5IFCP}

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	2026-05-18T00:05:13.748613Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

063628ed5c1c75790aed5185fb750513c579597e5f068b6151b8df3d179c30af

Aliases

arxiv: 1808.05582 · arxiv_version: 1808.05582v2 · doi: 10.48550/arxiv.1808.05582 · pith_short_12: AY3CR3K4DR2X · pith_short_16: AY3CR3K4DR2XSCXN · pith_short_8: AY3CR3K4

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/AY3CR3K4DR2XSCXNKGC7W5IFCP \
  | 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: 063628ed5c1c75790aed5185fb750513c579597e5f068b6151b8df3d179c30af

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "097dc5088952749fa71739d7f5d1cad74e52cd206af70d21b6fbc42d179ee334",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2018-08-16T16:58:49Z",
    "title_canon_sha256": "2fa8d2b3aa16c68fa90467c768402ccc218f948ebf29c102ad0f125e1df6d1f4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1808.05582",
    "kind": "arxiv",
    "version": 2
  }
}