Pith Number

pith:Q4LWMO5U

pith:2016:Q4LWMO5UKOEUXFYGPX4ZAZ23BK

not attested not anchored not stored refs pending

Precise measurements of inflationary features with 21 cm observations

Jan Hamann, Xuelei Chen, Yidong Xu

arxiv:1607.00817 v2 · 2016-07-04 · 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{Q4LWMO5UKOEUXFYGPX4ZAZ23BK}

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	2026-05-18T00:54:10.690220Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8717663bb453894b97067df990675b0abcaf15f3813eb08602f8433c82fda0a0

Aliases

arxiv: 1607.00817 · arxiv_version: 1607.00817v2 · doi: 10.48550/arxiv.1607.00817 · pith_short_12: Q4LWMO5UKOEU · pith_short_16: Q4LWMO5UKOEUXFYG · pith_short_8: Q4LWMO5U

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/Q4LWMO5UKOEUXFYGPX4ZAZ23BK \
  | 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: 8717663bb453894b97067df990675b0abcaf15f3813eb08602f8433c82fda0a0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8437061f3164809b93b83375bcfca6ebc693d3e33e5b29908e5a95e8bfd4fd39",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2016-07-04T10:49:35Z",
    "title_canon_sha256": "50524405f7538412b8a53752b20486c0b418342a0c2496dffce581b500ba5a37"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1607.00817",
    "kind": "arxiv",
    "version": 2
  }
}