Pith Number

pith:QI3G3MLL

pith:2016:QI3G3MLLUDQV435BY7OC2574OF

not attested not anchored not stored refs pending

Detection of quasars in the time domain

Andrew J. Drake, Ashish Mahabal, Daniel J. Stern, Matthew J. Graham, S. G. Djorgovski

arxiv:1612.07271 v1 · 2016-12-21 · 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{QI3G3MLLUDQV435BY7OC2574OF}

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	2026-05-18T00:42:30.124558Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

82366db16ba0e15e6fa1c7dc2d77fc71556432f06582a8cf0fc66c931411c4a6

Aliases

arxiv: 1612.07271 · arxiv_version: 1612.07271v1 · doi: 10.48550/arxiv.1612.07271 · pith_short_12: QI3G3MLLUDQV · pith_short_16: QI3G3MLLUDQV435B · pith_short_8: QI3G3MLL

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/QI3G3MLLUDQV435BY7OC2574OF \
  | 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: 82366db16ba0e15e6fa1c7dc2d77fc71556432f06582a8cf0fc66c931411c4a6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9ea85a66691c058ddc608451a794232df32e793f811faf3d352e5491edd634e7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2016-12-21T18:49:22Z",
    "title_canon_sha256": "6f03069ff5a2d88219c4fff429d2342b4a9144088182a5bf649e83b22278fc6c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1612.07271",
    "kind": "arxiv",
    "version": 1
  }
}