Pith Number

pith:D7UVFIEI

pith:2018:D7UVFIEIYFOV2DBLMCOQLALAZV

not attested not anchored not stored refs pending

Daytime passive radiative cooler using porous alumina

Jiang Yang, Wei Du, Yang Fu, Yishu Su, Yungui Ma

arxiv:1803.07906 v1 · 2018-02-28 · physics.app-ph · physics.optics

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{D7UVFIEIYFOV2DBLMCOQLALAZV}

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	2026-05-18T00:20:28.577780Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1fe952a088c15d5d0c2b609d058160cd50be3e1e3aea7016a2faffba71c320fa

Aliases

arxiv: 1803.07906 · arxiv_version: 1803.07906v1 · doi: 10.48550/arxiv.1803.07906 · pith_short_12: D7UVFIEIYFOV · pith_short_16: D7UVFIEIYFOV2DBL · pith_short_8: D7UVFIEI

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/D7UVFIEIYFOV2DBLMCOQLALAZV \
  | 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: 1fe952a088c15d5d0c2b609d058160cd50be3e1e3aea7016a2faffba71c320fa

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c6f4c64c0f2cdba15f0c6acdb7cb8d4967232d30ea0eb8a27e4cdc15d7ae67c5",
    "cross_cats_sorted": [
      "physics.optics"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.app-ph",
    "submitted_at": "2018-02-28T12:07:22Z",
    "title_canon_sha256": "c3757241172bb9d3fe2718d3331219e97b59956a9ed39146982ca5ddb2dad0d4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1803.07906",
    "kind": "arxiv",
    "version": 1
  }
}