Pith Number

pith:Z7CGDU5U

pith:2015:Z7CGDU5UZX7ZG23AXDBMREJY3J

not attested not anchored not stored refs pending

Probing the Physical Conditions of Supernova Ejecta with the Measured Sizes of Presolar Al2O3 Grains

Shigeru Wakita, Takashi Kozasa, Takaya Nozawa, Yasuhiro Hasegawa

arxiv:1509.01909 v1 · 2015-09-07 · 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{Z7CGDU5UZX7ZG23AXDBMREJY3J}

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	2026-05-18T01:30:57.511824Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cfc461d3b4cdff936b60b8c2c89138da494da470bcc043d8012ed3b107b6036e

Aliases

arxiv: 1509.01909 · arxiv_version: 1509.01909v1 · doi: 10.48550/arxiv.1509.01909 · pith_short_12: Z7CGDU5UZX7Z · pith_short_16: Z7CGDU5UZX7ZG23A · pith_short_8: Z7CGDU5U

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/Z7CGDU5UZX7ZG23AXDBMREJY3J \
  | 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: cfc461d3b4cdff936b60b8c2c89138da494da470bcc043d8012ed3b107b6036e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1080c9988978d8ffa333eb870ea42c9bd1bb562f25dbe9d7c101a8c411bc7126",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2015-09-07T05:30:31Z",
    "title_canon_sha256": "c915e149e313ec4030a083b927708f3858bed018fbe7ac464847b10915414bd0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1509.01909",
    "kind": "arxiv",
    "version": 1
  }
}