Pith Number

pith:6H4NJLRA

pith:2011:6H4NJLRAUOTQDKINZNGC4VZBJ7

not attested not anchored not stored refs pending

Time-Resolved Spectroscopy with SDSS

Carles Badenes, Sonya Huang, Steven Bickerton, Thomas Hettinger, Timothy Beers

arxiv:1111.6989 v1 · 2011-11-29 · astro-ph.IM

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{6H4NJLRAUOTQDKINZNGC4VZBJ7}

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	2026-05-18T01:59:21.610742Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f1f8d4ae20a3a701a90dcb4c2e57214ffd3d5a97a2e923ef7999cb60ceed1ae9

Aliases

arxiv: 1111.6989 · arxiv_version: 1111.6989v1 · doi: 10.48550/arxiv.1111.6989 · pith_short_12: 6H4NJLRAUOTQ · pith_short_16: 6H4NJLRAUOTQDKIN · pith_short_8: 6H4NJLRA

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/6H4NJLRAUOTQDKINZNGC4VZBJ7 \
  | 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: f1f8d4ae20a3a701a90dcb4c2e57214ffd3d5a97a2e923ef7999cb60ceed1ae9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0fa69934a24f604097c24aaa3d3a7a08628aaf60d3169549dbf74d6dab96de10",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2011-11-29T21:22:42Z",
    "title_canon_sha256": "ccb378304696012acf65e60e3a598ce78635033be1c297c1aad2be19a184d759"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1111.6989",
    "kind": "arxiv",
    "version": 1
  }
}