Pith Number

pith:Q4T63LFB

pith:2018:Q4T63LFBANXIZA3QIFOIIHG5WP

not attested not anchored not stored refs pending

Impact of astrophysics on cosmology forecasts for 21 cm surveys

Adam Amara (ETH Zurich), Alexandre Refregier (ETH Zurich), Hamsa Padmanabhan (ETH Zurich/CITA)

arxiv:1804.10627 v2 · 2018-04-27 · 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{Q4T63LFBANXIZA3QIFOIIHG5WP}

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	2026-05-17T23:50:59.763389Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8727edaca1036e8c8370415c841cddb3d1f0873caa0d4088535de1dbb7cb50bd

Aliases

arxiv: 1804.10627 · arxiv_version: 1804.10627v2 · doi: 10.48550/arxiv.1804.10627 · pith_short_12: Q4T63LFBANXI · pith_short_16: Q4T63LFBANXIZA3Q · pith_short_8: Q4T63LFB

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/Q4T63LFBANXIZA3QIFOIIHG5WP \
  | 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: 8727edaca1036e8c8370415c841cddb3d1f0873caa0d4088535de1dbb7cb50bd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e2255bd33ed0b385b7130286035896124a0824ac31143c37cf972817d9f87d5f",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2018-04-27T18:00:06Z",
    "title_canon_sha256": "e641eae777972503691b38d4281189c2bc1202b8012f8909cbcb64601ee0e323"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.10627",
    "kind": "arxiv",
    "version": 2
  }
}