Pith Number

pith:DUFKS4CX

pith:2013:DUFKS4CX2ATDEGMGYFNBB5XNTC

not attested not anchored not stored refs pending

The digital randomness of black-body radiation

Sandor Varro

arxiv:1301.1997 v1 · 2013-01-09 · quant-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{DUFKS4CX2ATDEGMGYFNBB5XNTC}

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	2026-05-18T03:31:06.300335Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1d0aa97057d026321986c15a10f6ed98b203b0cd9ba0ea2d1ed5e966735b4a8a

Aliases

arxiv: 1301.1997 · arxiv_version: 1301.1997v1 · doi: 10.48550/arxiv.1301.1997 · pith_short_12: DUFKS4CX2ATD · pith_short_16: DUFKS4CX2ATDEGMG · pith_short_8: DUFKS4CX

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/DUFKS4CX2ATDEGMGYFNBB5XNTC \
  | 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: 1d0aa97057d026321986c15a10f6ed98b203b0cd9ba0ea2d1ed5e966735b4a8a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "13bc92b3d81420438b753a1a594ab2e1b60a75563248cecf5347e63d603b23c8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2013-01-09T22:09:47Z",
    "title_canon_sha256": "bebe3d447fc05db25bee048c1c38aac010d7947b3b2152771b9fea1961bba7d4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1301.1997",
    "kind": "arxiv",
    "version": 1
  }
}