Pith Number

pith:X2NRJGM2

pith:2017:X2NRJGM2FVIQMF2CNTK2JIU4HY

not attested not anchored not stored refs pending

Mathematical Knowledge and the Role of an Observer: Ontological and epistemological aspects

Mark Burgin

arxiv:1709.06884 v1 · 2017-09-19 · 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{X2NRJGM2FVIQMF2CNTK2JIU4HY}

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	2026-05-18T00:34:40.181295Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

be9b14999a2d510617426cd5a4a29c3e0ba711723a1c9c3631cd91d45f93e53b

Aliases

arxiv: 1709.06884 · arxiv_version: 1709.06884v1 · doi: 10.48550/arxiv.1709.06884 · pith_short_12: X2NRJGM2FVIQ · pith_short_16: X2NRJGM2FVIQMF2C · pith_short_8: X2NRJGM2

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/X2NRJGM2FVIQMF2CNTK2JIU4HY \
  | 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: be9b14999a2d510617426cd5a4a29c3e0ba711723a1c9c3631cd91d45f93e53b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7c6983aba3d98b8b59a75d5347892f4c0fb18d113b409fd5eacf2ed20a39f3fc",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.HO",
    "submitted_at": "2017-09-19T02:11:51Z",
    "title_canon_sha256": "84c6eaeb6414160b5d98076638cd7dc6848db018ea572d2a0106d4c063f9aa61"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1709.06884",
    "kind": "arxiv",
    "version": 1
  }
}