Pith Number

pith:BEXCYSSX

pith:2020:BEXCYSSXF6RUZBG6J6I3HH6R4T

not attested not anchored not stored refs pending

The Ultimately Large Telescope -- what kind of facility do we need to detect Population III stars?

Anna T. P. Schauer, Niv Drory, Volker Bromm

arxiv:2007.02946 v2 · 2020-07-06 · astro-ph.GA · 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{BEXCYSSXF6RUZBG6J6I3HH6R4T}

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	2026-07-05T01:57:52.378832Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

092e2c4a572fa34c84de4f91b39fd1e4f1f098ea4c6a559226e9bcfe9eb9f238

Aliases

arxiv: 2007.02946 · arxiv_version: 2007.02946v2 · doi: 10.48550/arxiv.2007.02946 · pith_short_12: BEXCYSSXF6RU · pith_short_16: BEXCYSSXF6RUZBG6 · pith_short_8: BEXCYSSX

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/BEXCYSSXF6RUZBG6J6I3HH6R4T \
  | 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: 092e2c4a572fa34c84de4f91b39fd1e4f1f098ea4c6a559226e9bcfe9eb9f238

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a0a7e303b1999cc5495fd0bcc9b169e863cb8b98cfb28b7dfe91aee9bff3775b",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2020-07-06T18:00:01Z",
    "title_canon_sha256": "e2c011115cc9e7a09bbf26cff39d454d8276f688a0ed757e7150753ec3ee7fb1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2007.02946",
    "kind": "arxiv",
    "version": 2
  }
}