Pith Number

pith:5SFAZQR6

pith:2018:5SFAZQR6CHH5PTIVUSZVXU6HKK

not attested not anchored not stored refs pending

On the evolutionary state of massive stars in transition phases in M33

A. F. Torres, L. Cidale, M. Kourniotis, M. Kraus, M. L. Arias

arxiv:1808.00008 v1 · 2018-07-31 · 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{5SFAZQR6CHH5PTIVUSZVXU6HKK}

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	2026-05-18T00:08:37.446482Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ec8a0cc23e11cfd7cd15a4b35bd3c7529320a77e0781b3b6b1c3f138765e20dc

Aliases

arxiv: 1808.00008 · arxiv_version: 1808.00008v1 · doi: 10.48550/arxiv.1808.00008 · pith_short_12: 5SFAZQR6CHH5 · pith_short_16: 5SFAZQR6CHH5PTIV · pith_short_8: 5SFAZQR6

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/5SFAZQR6CHH5PTIVUSZVXU6HKK \
  | 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: ec8a0cc23e11cfd7cd15a4b35bd3c7529320a77e0781b3b6b1c3f138765e20dc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fd13ec115c3dc31cd7c9be3d919d39ab82c89d4835a9ddc2e5ca1392f8d320a7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2018-07-31T18:00:02Z",
    "title_canon_sha256": "e5480b30d39b9879d0e5fcfe3ce47e74310067730d7159390dde3dc7ba19e591"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1808.00008",
    "kind": "arxiv",
    "version": 1
  }
}