Pith Number

pith:PEMTDQJG

pith:2013:PEMTDQJGPN6ZFY5B4ZG5CJDC6X

not attested not anchored not stored refs pending

Improving the precision of time-delay cosmography with observations of galaxies along the line of sight

Christopher D. Fassnacht, L\'eon V.E. Koopmans, Marua Bradac, Matthew W. Auger, Philip J. Marshall, Roger D. Blandford, Sherry H. Suyu, Stefan Hilbert, Thomas E. Collett, Tommaso Treu, Zach S. Greene

arxiv:1303.3588 v1 · 2013-03-14 · 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{PEMTDQJGPN6ZFY5B4ZG5CJDC6X}

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	2026-05-18T01:51:07.128364Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

791931c1267b7d92e3a1e64dd12462f5f0d4245403102e4f018223dd3a6bd7ca

Aliases

arxiv: 1303.3588 · arxiv_version: 1303.3588v1 · doi: 10.48550/arxiv.1303.3588 · pith_short_12: PEMTDQJGPN6Z · pith_short_16: PEMTDQJGPN6ZFY5B · pith_short_8: PEMTDQJG

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/PEMTDQJGPN6ZFY5B4ZG5CJDC6X \
  | 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: 791931c1267b7d92e3a1e64dd12462f5f0d4245403102e4f018223dd3a6bd7ca

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6d86b5bf82d9becd3a527bef0b7058c0cb38829b63a4e851a84cca08f72e6143",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2013-03-14T20:00:11Z",
    "title_canon_sha256": "18da4898d9b62be655821254ca89598c827ec281a04242d0d40a7c4a65bd8670"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1303.3588",
    "kind": "arxiv",
    "version": 1
  }
}