Pith Number

pith:GZOI4DN5

pith:2025:GZOI4DN57XMGFE7UYL36ULHTIO

not attested not anchored not stored refs pending

The Initial Mass Function of Stars and Brown Dwarfs in the Upper Sco Association

K.L.Luhman

arxiv:2505.21747 v1 · 2025-05-27 · astro-ph.SR

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{GZOI4DN57XMGFE7UYL36ULHTIO}

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	2026-07-05T11:11:02.938924Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

365c8e0dbdfdd86293f4c2f7ea2cf343ab868c8bbe7a6d5cd5977d81a21a5e19

Aliases

arxiv: 2505.21747 · arxiv_version: 2505.21747v1 · doi: 10.48550/arxiv.2505.21747 · pith_short_12: GZOI4DN57XMG · pith_short_16: GZOI4DN57XMGFE7U · pith_short_8: GZOI4DN5

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/GZOI4DN57XMGFE7UYL36ULHTIO \
  | 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: 365c8e0dbdfdd86293f4c2f7ea2cf343ab868c8bbe7a6d5cd5977d81a21a5e19

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "780c70d51c23f4ce9a6138bd7bc4be82fede6950e7579a0862ac009a34859a6f",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2025-05-27T20:34:56Z",
    "title_canon_sha256": "3681733272cbcc56cb54872758ee59b36323e9a8c43ca57fd5147d8ffb9c1560"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2505.21747",
    "kind": "arxiv",
    "version": 1
  }
}