Pith Number

pith:JJSDESUG

pith:2005:JJSDESUGE33PGRQ3ZJOMHETWUX

not attested not anchored not stored refs pending

An Upper Limit on the Expansion Velocity of GRB Candidate SN 2001em

M. F. Bietenholz, N. Bartel

arxiv:astro-ph/0504671 v1 · 2005-04-29 · 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{JJSDESUGE33PGRQ3ZJOMHETWUX}

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	2026-05-18T04:15:48.965718Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4a64324a8626f6f3461bca5cc39276a5f929a07e534ac603d0bfdea921dd6eef

Aliases

arxiv: astro-ph/0504671 · arxiv_version: astro-ph/0504671v1 · doi: 10.48550/arxiv.astro-ph/0504671 · pith_short_12: JJSDESUGE33P · pith_short_16: JJSDESUGE33PGRQ3 · pith_short_8: JJSDESUG

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/JJSDESUGE33PGRQ3ZJOMHETWUX \
  | 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: 4a64324a8626f6f3461bca5cc39276a5f929a07e534ac603d0bfdea921dd6eef

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7a78a08d274507e521ddeb5eb98e1a8e369d10f5fab4cf7a7cca62daa5d7edd9",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2005-04-29T18:57:03Z",
    "title_canon_sha256": "b271f076be90c428567953b7b6d0ca1f2199a94b5c90fdf861e811a23e2df32b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0504671",
    "kind": "arxiv",
    "version": 1
  }
}