Pith Number

pith:OASBJXEQ

pith:2021:OASBJXEQHKJYBCDR4RTRQZLZIO

not attested not anchored not stored refs pending

A Deep Census of Outlying Star Formation in the M101 Group

(2) Liverpool John Moores University, 3) ((1) Case Western Reserve University, (3) University of Hertfordshire), Aaron E. Watkins (2, J. Christopher Mihos (1), Paul Harding (1), Ray Garner III (1)

arxiv:2105.05167 v1 · 2021-05-11 · 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{OASBJXEQHKJYBCDR4RTRQZLZIO}

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	2026-07-05T02:57:20.678389Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

702414dc903a93808871e46718657943af01302109e63936a83d3eb48dfa61f4

Aliases

arxiv: 2105.05167 · arxiv_version: 2105.05167v1 · doi: 10.48550/arxiv.2105.05167 · pith_short_12: OASBJXEQHKJY · pith_short_16: OASBJXEQHKJYBCDR · pith_short_8: OASBJXEQ

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/OASBJXEQHKJYBCDR4RTRQZLZIO \
  | 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: 702414dc903a93808871e46718657943af01302109e63936a83d3eb48dfa61f4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "baf9df49bcf9b02d910b588072e92f9898deded9573f3fed468a65e80c28b4db",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2021-05-11T16:24:04Z",
    "title_canon_sha256": "df6d4f97e4d66f7b734872aa21c6a9cc71fb9d32edda061b58103dfb782de2d8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2105.05167",
    "kind": "arxiv",
    "version": 1
  }
}