Pith Number

pith:Q4AKLYXG

pith:2015:Q4AKLYXGGAGJCKMANM7RFGVWN6

not attested not anchored not stored refs pending

On fields inspired with the polar HSV -- RGB theory of Colour

J\'an Halu\v{s}ka

arxiv:1512.01440 v1 · 2015-11-30 · math.HO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{Q4AKLYXGGAGJCKMANM7RFGVWN6}

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	2026-05-18T01:25:16.866352Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8700a5e2e6300c9129806b3f129ab66fa4a1bbad9ab804f42791d7548b7745ba

Aliases

arxiv: 1512.01440 · arxiv_version: 1512.01440v1 · doi: 10.48550/arxiv.1512.01440 · pith_short_12: Q4AKLYXGGAGJ · pith_short_16: Q4AKLYXGGAGJCKMA · pith_short_8: Q4AKLYXG

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/Q4AKLYXGGAGJCKMANM7RFGVWN6 \
  | 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: 8700a5e2e6300c9129806b3f129ab66fa4a1bbad9ab804f42791d7548b7745ba

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "723525a082ed132370fc186cfb7b10a23eb282a8e9f1b727cf73956d0e929295",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.HO",
    "submitted_at": "2015-11-30T12:31:47Z",
    "title_canon_sha256": "c8c09f0e463526b3b751a8502053224cc90bcea89334f05a64861971c75d54f3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1512.01440",
    "kind": "arxiv",
    "version": 1
  }
}