Pith Number

pith:EXPLDZHW

pith:2019:EXPLDZHWGQZ5ACKGPGGH22S7ME

not attested not anchored not stored refs pending

Spectroscopy and polarimetry of the gravitationally lensed quasar SDSS J1004+4112 with the 6m SAO RAS telescope

A. Moiseev, A. Smirnova, C. Fian, Dj. Savi\'c, E. G. Mediavilla, L. \v{C}. Popovi\'c, S. Simi\'c, V. L. Afanasiev

arxiv:1912.08886 v1 · 2019-12-18 · 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{EXPLDZHWGQZ5ACKGPGGH22S7ME}

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	2026-07-05T00:38:29.821017Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

25deb1e4f63433d00946798c7d6a5f6114d091740aaf2acec2152450e2680f2b

Aliases

arxiv: 1912.08886 · arxiv_version: 1912.08886v1 · doi: 10.48550/arxiv.1912.08886 · pith_short_12: EXPLDZHWGQZ5 · pith_short_16: EXPLDZHWGQZ5ACKG · pith_short_8: EXPLDZHW

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/EXPLDZHWGQZ5ACKGPGGH22S7ME \
  | 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: 25deb1e4f63433d00946798c7d6a5f6114d091740aaf2acec2152450e2680f2b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8df89a683906ea2fbb4d7c4d97585714134413e7cc2814bd30b699781a6b7411",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2019-12-18T20:56:18Z",
    "title_canon_sha256": "68a8c8000fcd14c5cd97194d2113022fee4bf7ec622cf31dc76fb78fcab736f4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1912.08886",
    "kind": "arxiv",
    "version": 1
  }
}