Pith Number

pith:OAS554XA

pith:2015:OAS554XATMWLQLCDBGXWCQ3VBT

not attested not anchored not stored refs pending

Quantifying the Carbon Abundances in the Secondary Stars of SS Cygni, RU Pegasi, and GK Persei

Ryan T. Hamilton, Thomas E. Harrison

arxiv:1509.03664 v1 · 2015-09-11 · 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{OAS554XATMWLQLCDBGXWCQ3VBT}

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	2026-05-18T01:30:17.776802Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7025def2e09b2cb82c4309af6143750cc8041139bd6bc16caa2c2a477d0013ec

Aliases

arxiv: 1509.03664 · arxiv_version: 1509.03664v1 · doi: 10.48550/arxiv.1509.03664 · pith_short_12: OAS554XATMWL · pith_short_16: OAS554XATMWLQLCD · pith_short_8: OAS554XA

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/OAS554XATMWLQLCDBGXWCQ3VBT \
  | 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: 7025def2e09b2cb82c4309af6143750cc8041139bd6bc16caa2c2a477d0013ec

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "eccb184496c4118454714e5ec43217bb00322072dc0fb7531342b90e12e8a4f7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2015-09-11T21:11:02Z",
    "title_canon_sha256": "96994195ac0317a6826dd5e7d322494444c0b7e9abaff446918ce5da0ae4a08f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1509.03664",
    "kind": "arxiv",
    "version": 1
  }
}