Pith Number

pith:C65TSV3U

pith:2005:C65TSV3UKGLXOISB7KQR2ZNKLD

not attested not anchored not stored refs pending

V838 Mon: light echo evolution and distance estimate

Fred Marang, John W. Menzies, Lisa A. Crause, Warrick A. Lawson

arxiv:astro-ph/0501490 v1 · 2005-01-22 · 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{C65TSV3UKGLXOISB7KQR2ZNKLD}

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	2026-07-04T16:50:41.253137Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

17bb3957745197772241faa11d65aa58cd6d80905bec8aa9ac5881a44fef2ec0

Aliases

arxiv: astro-ph/0501490 · arxiv_version: astro-ph/0501490v1 · doi: 10.48550/arxiv.astro-ph/0501490 · pith_short_12: C65TSV3UKGLX · pith_short_16: C65TSV3UKGLXOISB · pith_short_8: C65TSV3U

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/C65TSV3UKGLXOISB7KQR2ZNKLD \
  | 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: 17bb3957745197772241faa11d65aa58cd6d80905bec8aa9ac5881a44fef2ec0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "43aeeb0b5ad8190cc853304649f6155b754d60fab3a61f7b2be47c72279c3167",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2005-01-22T22:03:45Z",
    "title_canon_sha256": "be9f2bf342d8143a1a8de7007ef2f1f33f503bdc7bbc82290be1d5fdf39c2578"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0501490",
    "kind": "arxiv",
    "version": 1
  }
}