Pith Number

pith:TZT23P37

pith:1999:TZT23P37O2AKOPU2RXN6U6Q7G5

not attested not anchored not stored refs pending

Spectroscopic Study of the Vela-Shrapnel

B. Aschenbach, E. Miyata, H. Tsunemi

arxiv:astro-ph/9909393 v1 · 1999-09-23 · astro-ph

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{TZT23P37O2AKOPU2RXN6U6Q7G5}

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	2026-05-18T01:40:12.617828Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9e67adbf7f7680a73e9a8ddbea7a1f37678c33239ce3a303ff40eea312c89812

Aliases

arxiv: astro-ph/9909393 · arxiv_version: astro-ph/9909393v1 · doi: 10.48550/arxiv.astro-ph/9909393 · pith_short_12: TZT23P37O2AK · pith_short_16: TZT23P37O2AKOPU2 · pith_short_8: TZT23P37

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/TZT23P37O2AKOPU2RXN6U6Q7G5 \
  | 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: 9e67adbf7f7680a73e9a8ddbea7a1f37678c33239ce3a303ff40eea312c89812

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c0c7a76dd85950ff13fdd5ee408e79fdededdc4e1e179ee9ff9cb28660cfe88f",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1999-09-23T12:55:14Z",
    "title_canon_sha256": "3989188a93f34f5b14380899424d2e76c7005f7ec916fc93588c15cf1449bf1a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9909393",
    "kind": "arxiv",
    "version": 1
  }
}