Pith Number

pith:NH2QFT5F

pith:2000:NH2QFT5FZUMMYWIOQLFEWP56PG

not attested not anchored not stored refs pending

A near-IR [Fe II] line imaging survey of supernova remnants in M33

Canada), London, N. St-Louis (2) ((1) Imperial College, R. Doyon (2), T. Morel (1), UK; (2) Universite de Montreal

arxiv:astro-ph/0008238 v1 · 2000-08-16 · 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{NH2QFT5FZUMMYWIOQLFEWP56PG}

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	2026-05-18T01:07:46.483520Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

69f502cfa5cd18cc590e82ca4b3fbe79b486bd7ed82c0e3f98ebc38be84e78b7

Aliases

arxiv: astro-ph/0008238 · arxiv_version: astro-ph/0008238v1 · doi: 10.48550/arxiv.astro-ph/0008238 · pith_short_12: NH2QFT5FZUMM · pith_short_16: NH2QFT5FZUMMYWIO · pith_short_8: NH2QFT5F

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/NH2QFT5FZUMMYWIOQLFEWP56PG \
  | 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: 69f502cfa5cd18cc590e82ca4b3fbe79b486bd7ed82c0e3f98ebc38be84e78b7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b3b8e8eb6654720cedf73ffbc9bce5b33b732058e496968d29638541cde215ed",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2000-08-16T12:34:55Z",
    "title_canon_sha256": "a680b4c3750b7550d1fee461a98f741512d3f10dc007152fc686b098280ed6b1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0008238",
    "kind": "arxiv",
    "version": 1
  }
}