Pith Number

pith:TT3L5LLS

pith:2004:TT3L5LLSLUNINLFZM2NLX4ARU2

not attested not anchored not stored refs pending

On the Persistence of Homogeneous Matter

Jeremy Butterfield

arxiv:physics/0406021 v1 · 2004-06-04 · physics.class-ph · physics.gen-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{TT3L5LLSLUNINLFZM2NLX4ARU2}

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	2026-05-18T01:05:08.839176Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9cf6bead725d1a86acb9669abbf011a6be47de272607934a8b02aae599b63106

Aliases

arxiv: physics/0406021 · arxiv_version: physics/0406021v1 · doi: 10.48550/arxiv.physics/0406021 · pith_short_12: TT3L5LLSLUNI · pith_short_16: TT3L5LLSLUNINLFZ · pith_short_8: TT3L5LLS

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/TT3L5LLSLUNINLFZM2NLX4ARU2 \
  | 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: 9cf6bead725d1a86acb9669abbf011a6be47de272607934a8b02aae599b63106

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cb2d2949b9cdb4fcc805e834d77500ef80a7e11837f2aebdd3f53f435de01a1d",
    "cross_cats_sorted": [
      "physics.gen-ph"
    ],
    "license": "",
    "primary_cat": "physics.class-ph",
    "submitted_at": "2004-06-04T16:58:02Z",
    "title_canon_sha256": "636d9f86af90cc257947c4c31f2dfd7a52f92e33adbc17e88aad1c2dbe6b813e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "physics/0406021",
    "kind": "arxiv",
    "version": 1
  }
}