Pith Number

pith:HDFBCQDZ

pith:2006:HDFBCQDZB77MUVPVMV5UNT5RBM

not attested not anchored not stored refs pending

A Light Echo from Type Ia Supernova 1995E?

A. Riess, B. P. Schmidt, J. L. Quinn, M. Della Valle, N. Panagia, P. M. Garnavich, W. Li

arxiv:astro-ph/0610431 v1 · 2006-10-13 · 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{HDFBCQDZB77MUVPVMV5UNT5RBM}

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	2026-05-18T04:28:57.475686Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

38ca1140790ffeca55f5657b46cfb10b35dd44ba97c2a7bdd62dd16e4f49586c

Aliases

arxiv: astro-ph/0610431 · arxiv_version: astro-ph/0610431v1 · doi: 10.48550/arxiv.astro-ph/0610431 · pith_short_12: HDFBCQDZB77M · pith_short_16: HDFBCQDZB77MUVPV · pith_short_8: HDFBCQDZ

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/HDFBCQDZB77MUVPVMV5UNT5RBM \
  | 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: 38ca1140790ffeca55f5657b46cfb10b35dd44ba97c2a7bdd62dd16e4f49586c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3c1309f85f5f27c081daa1a55afb0e10eb5c5c6dd8e32f2e1491f1c2e3dd11e1",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2006-10-13T21:32:03Z",
    "title_canon_sha256": "6c562a4e963843e8bbdda379351940c408906a4fc8205105e11c5b8a507f064d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0610431",
    "kind": "arxiv",
    "version": 1
  }
}