Pith Number

pith:TIJXHEXP

pith:2021:TIJXHEXP6XBIQ7EPH72NHUCMFD

not attested not anchored not stored refs pending

Large HI optical depth and Redshifted 21-cm signal from cosmic dawn

Ariful Hoque, Kanan K. Datta, Raghunath Ghara, Suman Majumdar

arxiv:2110.06925 v1 · 2021-10-13 · 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{TIJXHEXP6XBIQ7EPH72NHUCMFD}

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	2026-07-05T03:28:27.838048Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9a137392eff5c2887c8f3ff4d3d04c28d8ce0fec7c2e1622a2157f5cc40169c8

Aliases

arxiv: 2110.06925 · arxiv_version: 2110.06925v1 · doi: 10.48550/arxiv.2110.06925 · pith_short_12: TIJXHEXP6XBI · pith_short_16: TIJXHEXP6XBIQ7EP · pith_short_8: TIJXHEXP

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/TIJXHEXP6XBIQ7EPH72NHUCMFD \
  | 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: 9a137392eff5c2887c8f3ff4d3d04c28d8ce0fec7c2e1622a2157f5cc40169c8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fed71294122bab0b25440c31213e6f8cbbddebe74de5d0a557ad871d650f299a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2021-10-13T17:59:58Z",
    "title_canon_sha256": "16f409178ef96a8713336e3a5ef8be8135a69a45d88f7969b25f50c754e81889"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2110.06925",
    "kind": "arxiv",
    "version": 1
  }
}