Pith Number

pith:WU6KIVEW

pith:2021:WU6KIVEW6KDIX2WULA2OLM2VRB

not attested not anchored not stored refs pending

Estimation of the CMB temperature from atomic C\,{\sc i} and molecular CO lines in the interstellar medium of early galaxies

A.V. Ivanchik, P. Noterdaeme, P. Petitjean, R. Srianand, V.V. Klimenko

arxiv:2106.00119 v1 · 2021-05-31 · 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{WU6KIVEW6KDIX2WULA2OLM2VRB}

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	2026-07-05T02:49:01.459535Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b53ca45496f2868bead45834e5b35588500c1c14df26eba1a40f09c2c3f7193a

Aliases

arxiv: 2106.00119 · arxiv_version: 2106.00119v1 · doi: 10.48550/arxiv.2106.00119 · pith_short_12: WU6KIVEW6KDI · pith_short_16: WU6KIVEW6KDIX2WU · pith_short_8: WU6KIVEW

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/WU6KIVEW6KDIX2WULA2OLM2VRB \
  | 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: b53ca45496f2868bead45834e5b35588500c1c14df26eba1a40f09c2c3f7193a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b7b166f86b89b67892e28820bf91624468063ee6ccee4a80ede494d0166e9374",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2021-05-31T22:13:04Z",
    "title_canon_sha256": "44c3d64a75a62f54f1495781565439bf71f1a73e865749481b2cc6daba168a55"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2106.00119",
    "kind": "arxiv",
    "version": 1
  }
}