Pith Number

pith:OPIIMAYD

pith:2015:OPIIMAYD7UAHSSKRYHK56Y2B7H

not attested not anchored not stored refs pending

Herschel observations of extreme OH/IR stars - the isotopic ratios of oxygen as a sign-post for the stellar mass

B. Swinyard, D. Teyssier, F. Kerschbaum, H. Olofsson, J. Blommaert, J. Yates, K. Justtanont, L.B.F.M. Waters, L. Decin, M.J. Barlow, M. Matsuura, P. Owen, P. Royer

arxiv:1505.05750 v2 · 2015-05-21 · 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{OPIIMAYD7UAHSSKRYHK56Y2B7H}

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	2026-05-18T01:59:34.512900Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

73d0860303fd00794951c1d5df6341f9d32279c1caa62d1d9955a8b0c9c4a84e

Aliases

arxiv: 1505.05750 · arxiv_version: 1505.05750v2 · doi: 10.48550/arxiv.1505.05750 · pith_short_12: OPIIMAYD7UAH · pith_short_16: OPIIMAYD7UAHSSKR · pith_short_8: OPIIMAYD

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/OPIIMAYD7UAHSSKRYHK56Y2B7H \
  | 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: 73d0860303fd00794951c1d5df6341f9d32279c1caa62d1d9955a8b0c9c4a84e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "92fa74cddc284f1e55d85062b974cbe6b195bdfc1de92056119c55b788fa7cb8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2015-05-21T14:22:42Z",
    "title_canon_sha256": "01fdb044e83d268209a62536bda58b906f4b03d3bb035cf9ecef893106986f29"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1505.05750",
    "kind": "arxiv",
    "version": 2
  }
}