Pith Number

pith:6I7WBMUJ

pith:2020:6I7WBMUJAGCCNA6BZPT73WMD2D

not attested not anchored not stored refs pending

The gray body approximation for radiative heat transfer in evacuated tube solar collectors: Effects of envelope infrared transparency

David R. McKenzie, Mark A. George, Noboru Takamure

arxiv:2011.12015 v3 · 2020-11-24 · physics.app-ph

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{6I7WBMUJAGCCNA6BZPT73WMD2D}

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	2026-07-05T04:08:38.311562Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f23f60b28901842683c1cbe7fdd983d0cb34f28f846cede203ac654df0f4394b

Aliases

arxiv: 2011.12015 · arxiv_version: 2011.12015v3 · doi: 10.48550/arxiv.2011.12015 · pith_short_12: 6I7WBMUJAGCC · pith_short_16: 6I7WBMUJAGCCNA6B · pith_short_8: 6I7WBMUJ

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/6I7WBMUJAGCCNA6BZPT73WMD2D \
  | 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: f23f60b28901842683c1cbe7fdd983d0cb34f28f846cede203ac654df0f4394b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d486710a0f7147230afbd2a42947703fcb0bea0dcf628d11e58e5adef39f71ae",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.app-ph",
    "submitted_at": "2020-11-24T10:43:35Z",
    "title_canon_sha256": "3afebec0927b12354044e1017edfdcf840db32e24bdace166eb664a4480dd3e2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2011.12015",
    "kind": "arxiv",
    "version": 3
  }
}