Pith Number

pith:IGPEJSWD

pith:1997:IGPEJSWDYNWWX67MYDP2EV6HTL

not attested not anchored not stored refs pending

ASCA Observations of the Supernova Remnant VRO42.05.01

David N. Burrows, Zhiyu Guo

arxiv:astro-ph/9702229 v1 · 1997-02-26 · 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{IGPEJSWDYNWWX67MYDP2EV6HTL}

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	2026-07-04T16:02:53.912622Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

419e44cac3c36d6bfbecc0dfa257c79aea77b2f1631b21bb5bc54108ad4ddd77

Aliases

arxiv: astro-ph/9702229 · arxiv_version: astro-ph/9702229v1 · doi: 10.48550/arxiv.astro-ph/9702229 · pith_short_12: IGPEJSWDYNWW · pith_short_16: IGPEJSWDYNWWX67M · pith_short_8: IGPEJSWD

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/IGPEJSWDYNWWX67MYDP2EV6HTL \
  | 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: 419e44cac3c36d6bfbecc0dfa257c79aea77b2f1631b21bb5bc54108ad4ddd77

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "35587e6f18f284e8d54944136ed387e6d2065b0218010ba3ef0c2c61b5cf3bbf",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1997-02-26T19:14:55Z",
    "title_canon_sha256": "904e892575e683234ae2a95e1ede95f3cfac7f5b4b423b650b3f4d8f290384e6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9702229",
    "kind": "arxiv",
    "version": 1
  }
}