Pith Number

pith:E5EM7ESS

pith:2017:E5EM7ESSKGPKJX4BIQIC65ZJAR

not attested not anchored not stored refs pending

The computational content of intrinsic density

Eric P. Astor

arxiv:1708.04267 v2 · 2017-08-14 · math.LO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{E5EM7ESSKGPKJX4BIQIC65ZJAR}

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	2026-05-18T00:36:02.696690Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2748cf9252519ea4df8144102f77290478f471b4984d89a6a0d6c333f7466945

Aliases

arxiv: 1708.04267 · arxiv_version: 1708.04267v2 · doi: 10.48550/arxiv.1708.04267 · pith_short_12: E5EM7ESSKGPK · pith_short_16: E5EM7ESSKGPKJX4B · pith_short_8: E5EM7ESS

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/E5EM7ESSKGPKJX4BIQIC65ZJAR \
  | 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: 2748cf9252519ea4df8144102f77290478f471b4984d89a6a0d6c333f7466945

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3a725bb2ae8dfde9d16a075712060847b0b8d820c2adf29682b93dbfd6a816e9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2017-08-14T18:40:01Z",
    "title_canon_sha256": "d26be2b3a8ff7ab604413c43b33a2f694d80c6aaa3d1c4b6678f1b100c5965c4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1708.04267",
    "kind": "arxiv",
    "version": 2
  }
}