Pith Number

pith:TWNZGAJZ

pith:2018:TWNZGAJZI6JWVWGTLAVG2H3AK5

not attested not anchored not stored refs pending

Broad absorption line disappearance/emergence in multiple ions in a weak emission-line quasar

B. L. Indahl, D. P. Schneider, F. Vito, J. P. U. Fynbo, J. Timlin, M. Vivek, N. Filiz Ak, Q. Ni, Sameer, T. Wang, Weimin Yi, W. N. Brandt

arxiv:1811.12483 v3 · 2018-11-29 · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{TWNZGAJZI6JWVWGTLAVG2H3AK5}

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	2026-05-17T23:55:53.709586Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9d9b93013947936ad8d3582a6d1f605757d2746fc535961eaec5a9478fbde9e9

Aliases

arxiv: 1811.12483 · arxiv_version: 1811.12483v3 · doi: 10.48550/arxiv.1811.12483 · pith_short_12: TWNZGAJZI6JW · pith_short_16: TWNZGAJZI6JWVWGT · pith_short_8: TWNZGAJZ

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/TWNZGAJZI6JWVWGTLAVG2H3AK5 \
  | 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: 9d9b93013947936ad8d3582a6d1f605757d2746fc535961eaec5a9478fbde9e9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f06069ed72026027478065994a48e7c366c925e8a997dd1e73c45e3f1947f773",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2018-11-29T20:57:57Z",
    "title_canon_sha256": "2a2db98b38f5ef8ff5315691d7cd20c330bcdfcccaf7c9d44f6c1f5de40dfa48"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1811.12483",
    "kind": "arxiv",
    "version": 3
  }
}