Pith Number

pith:3ZD44FEL

pith:2015:3ZD44FELLOTZJGL4IDEU4TWQ4L

not attested not anchored not stored refs pending

Lensed: a code for the forward reconstruction of lenses and sources from strong lensing observations

Fabio Bellagamba, Nicolas Tessore, R. Benton Metcalf

arxiv:1505.07674 v2 · 2015-05-28 · astro-ph.CO · astro-ph.IM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{3ZD44FELLOTZJGL4IDEU4TWQ4L}

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	2026-05-18T01:04:41.734327Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

de47ce148b5ba794997c40c94e4ed0e2ffe7478b4cc97a11607a22a38ac2d2bd

Aliases

arxiv: 1505.07674 · arxiv_version: 1505.07674v2 · doi: 10.48550/arxiv.1505.07674 · pith_short_12: 3ZD44FELLOTZ · pith_short_16: 3ZD44FELLOTZJGL4 · pith_short_8: 3ZD44FEL

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/3ZD44FELLOTZJGL4IDEU4TWQ4L \
  | 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: de47ce148b5ba794997c40c94e4ed0e2ffe7478b4cc97a11607a22a38ac2d2bd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b504313a8e36e8dd53b9c45f8efcf69b69e92711fe74caa709a6e0c6cdc1e552",
    "cross_cats_sorted": [
      "astro-ph.IM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2015-05-28T12:43:22Z",
    "title_canon_sha256": "d4c9fb259bbf7d0e544eef30c04dbaf9cb0dc36179dfa469a2f6d426137b2fd0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1505.07674",
    "kind": "arxiv",
    "version": 2
  }
}