Pith Number

pith:RM74ZKPK

pith:1995:RM74ZKPKBQR3OHJUCHVAQXFP5X

not attested not anchored not stored refs pending

Are Unidentified EUV Sources the Closest Neutron Stars?

Amotz Shemi

arxiv:astro-ph/9503085 v1 · 1995-03-23 · 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{RM74ZKPKBQR3OHJUCHVAQXFP5X}

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	2026-05-18T01:12:44.189747Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8b3fcca9ea0c23b71d3411ea085cafedff6fc9511834a472962be5b15dfd69c4

Aliases

arxiv: astro-ph/9503085 · arxiv_version: astro-ph/9503085v1 · doi: 10.48550/arxiv.astro-ph/9503085 · pith_short_12: RM74ZKPKBQR3 · pith_short_16: RM74ZKPKBQR3OHJU · pith_short_8: RM74ZKPK

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/RM74ZKPKBQR3OHJUCHVAQXFP5X \
  | 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: 8b3fcca9ea0c23b71d3411ea085cafedff6fc9511834a472962be5b15dfd69c4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "45446fad77f7c12a7962b799f75b293e9cf05b3ef79f24acf10c418c419d01b9",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1995-03-23T09:29:57Z",
    "title_canon_sha256": "f992b672634896f2532a0a81041c5b2e5866e698e302e474b5516879e8aec7d7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9503085",
    "kind": "arxiv",
    "version": 1
  }
}