Pith Number

pith:X37TDJUW

pith:2018:X37TDJUWWIYSUEPBPRJS2QZTTV

not attested not anchored not stored refs pending

Constraining the mass density of free-floating black holes using razor-thin lensing arcs

Anupreeta More, Frank C. van den Bosch, Giulia Despali, John P. McKean, Michael Tremmel, Simona Vegetti, Surhud More, Uddipan Banik

arxiv:1811.00637 v2 · 2018-11-01 · astro-ph.CO · 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{X37TDJUWWIYSUEPBPRJS2QZTTV}

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	2026-05-17T23:57:56.914424Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

beff31a696b2312a11e17c532d43339d7682abefb9d9188a592774bc91dab837

Aliases

arxiv: 1811.00637 · arxiv_version: 1811.00637v2 · doi: 10.48550/arxiv.1811.00637 · pith_short_12: X37TDJUWWIYS · pith_short_16: X37TDJUWWIYSUEPB · pith_short_8: X37TDJUW

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/X37TDJUWWIYSUEPBPRJS2QZTTV \
  | 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: beff31a696b2312a11e17c532d43339d7682abefb9d9188a592774bc91dab837

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "107b7b03a2989a64b292c854312a0be2bdf24b0ac457c7af7852a58012e97408",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2018-11-01T21:15:21Z",
    "title_canon_sha256": "1d26cf91502bcd52756a1b756c3296cc463c108682d29d0f0cf7fe7ba779313f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1811.00637",
    "kind": "arxiv",
    "version": 2
  }
}