Pith Number

pith:M6MY74OS

pith:2015:M6MY74OSVGWFS7WR6SDVJT2XJJ

not attested not anchored not stored refs pending

The linear polarisation of southern bright stars measured at the parts-per-million level

Daniel V. Cotton, Jeremy Bailey, J. H. Hough, Jonathan P. Marshall, Kimberly Bott, Lucyna Kedziora-Chudczer, P. W. Lucas

arxiv:1509.07221 v1 · 2015-09-24 · 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{M6MY74OSVGWFS7WR6SDVJT2XJJ}

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	2026-05-18T00:47:51.172104Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

67998ff1d2a9ac597ed1f48754cf574a4c7cf2dcd5d95b669821d5fb6a59ef22

Aliases

arxiv: 1509.07221 · arxiv_version: 1509.07221v1 · doi: 10.48550/arxiv.1509.07221 · pith_short_12: M6MY74OSVGWF · pith_short_16: M6MY74OSVGWFS7WR · pith_short_8: M6MY74OS

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/M6MY74OSVGWFS7WR6SDVJT2XJJ \
  | 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: 67998ff1d2a9ac597ed1f48754cf574a4c7cf2dcd5d95b669821d5fb6a59ef22

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "74fd1443dedc708901b52dc64cf31418bcf14aecd956028f538f2336b220bc6b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2015-09-24T03:07:50Z",
    "title_canon_sha256": "df650aab61d56da0eee72b0865ad58cd915b1e56b479cf5888f5fa068119efc6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1509.07221",
    "kind": "arxiv",
    "version": 1
  }
}