Pith Number

pith:TZ4N7UES

pith:2011:TZ4N7UESTNH22YCF6BJBOOB5AT

not attested not anchored not stored refs pending

PACCE: Perl Algorithm to Compute Continuum and Equivalent Widths

Rog\'erio Riffel, Tib\'erio Borges Vale

arxiv:1105.0318 v1 · 2011-05-02 · 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{TZ4N7UESTNH22YCF6BJBOOB5AT}

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	2026-05-18T02:02:10.257173Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9e78dfd0929b4fad6045f05217383d04ee7ad8a67ce3667351f194ccb491c46a

Aliases

arxiv: 1105.0318 · arxiv_version: 1105.0318v1 · doi: 10.48550/arxiv.1105.0318 · pith_short_12: TZ4N7UESTNH2 · pith_short_16: TZ4N7UESTNH22YCF · pith_short_8: TZ4N7UES

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/TZ4N7UESTNH22YCF6BJBOOB5AT \
  | 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: 9e78dfd0929b4fad6045f05217383d04ee7ad8a67ce3667351f194ccb491c46a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "35f9e585d6574f5f62ee12f61651b51e1b1f0bd8c9348cfacedea6e4249264af",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2011-05-02T13:02:31Z",
    "title_canon_sha256": "9d6919ccd3e7a5c11c2111a601319afc1af51fd0eb047ccedc4319600cd482c2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1105.0318",
    "kind": "arxiv",
    "version": 1
  }
}