Pith Number

pith:ZCBVKXUI

pith:2015:ZCBVKXUISCQIKU52YBLEUXAHM7

not attested not anchored not stored refs pending

On the origins of C IV absorption profile diversity in broad absorption line quasars

Alexei Baskin, Ari Laor, Fred Hamann

arxiv:1502.06609 v1 · 2015-02-23 · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZCBVKXUISCQIKU52YBLEUXAHM7}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T01:40:54.920996Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c883555e8890a08553bac0564a5c0767cbb4971b25ae84ef28d4f7d73ba55000

Aliases

arxiv: 1502.06609 · arxiv_version: 1502.06609v1 · doi: 10.48550/arxiv.1502.06609 · pith_short_12: ZCBVKXUISCQI · pith_short_16: ZCBVKXUISCQIKU52 · pith_short_8: ZCBVKXUI

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/ZCBVKXUISCQIKU52YBLEUXAHM7 \
  | 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: c883555e8890a08553bac0564a5c0767cbb4971b25ae84ef28d4f7d73ba55000

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c79c4328b00bb9f07c726dcbd96e38e160cb110bd71414a54c6142777041db51",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2015-02-23T21:00:10Z",
    "title_canon_sha256": "93e054d7eca59f46e53ff69be55d57470ab844c84404f211d7ed34478c3c6e60"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1502.06609",
    "kind": "arxiv",
    "version": 1
  }
}