Pith Number

pith:T627GNY2

pith:2012:T627GNY2WZBANXHVHQVWF5E5WU

not attested not anchored not stored refs pending

Probing the time variability of five Fe low broad absorption line quasars

A. Mahabal, M. Vivek, P. Noterdaeme, P. Petitjean, R. Srianand, V.C. Kuriakose, V.Mohan

arxiv:1204.3629 v1 · 2012-04-16 · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{T627GNY2WZBANXHVHQVWF5E5WU}

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	2026-05-18T01:57:51.814146Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9fb5f3371ab64206dcf53c2b62f49db506e5a62a11c8f021b2c6838b05a4d2d8

Aliases

arxiv: 1204.3629 · arxiv_version: 1204.3629v1 · doi: 10.48550/arxiv.1204.3629 · pith_short_12: T627GNY2WZBA · pith_short_16: T627GNY2WZBANXHV · pith_short_8: T627GNY2

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/T627GNY2WZBANXHVHQVWF5E5WU \
  | 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: 9fb5f3371ab64206dcf53c2b62f49db506e5a62a11c8f021b2c6838b05a4d2d8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1a3f208a40f29518651cf9957ee5d7caece2909f4ed15b0035d6a1b737237e39",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2012-04-16T20:00:06Z",
    "title_canon_sha256": "25d1b331b07719a5e9094b23e0c777fcd2993f57e5d4179b791580f4bed38dab"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1204.3629",
    "kind": "arxiv",
    "version": 1
  }
}