Pith Number

pith:NOWUIRQL

pith:2010:NOWUIRQLNNNWI2XXYN3F2FGT6B

not attested not anchored not stored refs pending

The Star Formation History in The Far Outer Disc of M33

A. A. Cole (U. of Tasmania), A. M. N. Ferguson (U. of Edinburgh), G. F. Lewis (U. of Sydney), Irvine), M. Irwin (Cambridge U.), M. K. Barker, N. R. Tanvir (U. of Leicester), R. Ibata (Obs. Strasbourg), T. A. Smecker-Hane (U. of California

arxiv:1008.0760 v1 · 2010-08-04 · astro-ph.GA · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NOWUIRQLNNNWI2XXYN3F2FGT6B}

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	2026-05-18T02:05:59.422224Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6bad44460b6b5b646af7c3765d14d3f04eea2621229abd0f60afb0fe5066ac5d

Aliases

arxiv: 1008.0760 · arxiv_version: 1008.0760v1 · doi: 10.48550/arxiv.1008.0760 · pith_short_12: NOWUIRQLNNNW · pith_short_16: NOWUIRQLNNNWI2XX · pith_short_8: NOWUIRQL

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/NOWUIRQLNNNWI2XXYN3F2FGT6B \
  | 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: 6bad44460b6b5b646af7c3765d14d3f04eea2621229abd0f60afb0fe5066ac5d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "03fb5e00d0352f4015b7dc01348f3d6abbd7a763e9154daccfab7b4631edd5d2",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2010-08-04T12:11:34Z",
    "title_canon_sha256": "a2362c79a07a54f734e20c8031f38bd0eb4d774cf57a4d1c11ee7b05cd5f7819"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1008.0760",
    "kind": "arxiv",
    "version": 1
  }
}