Pith Number

pith:IRWMSC3R

pith:2021:IRWMSC3RF7YPL6BHJOU77DIFZK

not attested not anchored not stored refs pending

Massive young stellar objects in the Local Group irregular galaxy NGC6822 identified using machine learning

David A. Kinson, Jacco Th. van Loon, Joana M. Oliveira

arxiv:2108.07105 v1 · 2021-08-16 · 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{IRWMSC3RF7YPL6BHJOU77DIFZK}

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	2026-07-05T03:08:38.645802Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

446cc90b712ff0f5f8274ba9ff8d05ca8ff5f49a4fea293b84b963fe6dc71723

Aliases

arxiv: 2108.07105 · arxiv_version: 2108.07105v1 · doi: 10.48550/arxiv.2108.07105 · pith_short_12: IRWMSC3RF7YP · pith_short_16: IRWMSC3RF7YPL6BH · pith_short_8: IRWMSC3R

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/IRWMSC3RF7YPL6BHJOU77DIFZK \
  | 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: 446cc90b712ff0f5f8274ba9ff8d05ca8ff5f49a4fea293b84b963fe6dc71723

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "422893bcbd00889e2af72b7c95a0bd3649f529147ee1557935ad75b92cea21d7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2021-08-16T14:20:51Z",
    "title_canon_sha256": "d550ee857aba2c77838a72ae8d4816fc8ddeb18eb4cb805b80227a31122b4bb2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2108.07105",
    "kind": "arxiv",
    "version": 1
  }
}