Pith Number

pith:P74NTS7G

pith:2017:P74NTS7GFQBFYR3TKZNHA2A7HU

not attested not anchored not stored refs pending

On the absolute continuity of radial projections

Tuomas Orponen

arxiv:1709.04653 v1 · 2017-09-14 · math.CA · math.MG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{P74NTS7GFQBFYR3TKZNHA2A7HU}

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	2026-05-18T00:35:11.018499Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7ff8d9cbe62c025c4773565a70681f3d101a4b9c4496eecd05e8ceddcc4799c8

Aliases

arxiv: 1709.04653 · arxiv_version: 1709.04653v1 · doi: 10.48550/arxiv.1709.04653 · pith_short_12: P74NTS7GFQBF · pith_short_16: P74NTS7GFQBFYR3T · pith_short_8: P74NTS7G

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/P74NTS7GFQBFYR3TKZNHA2A7HU \
  | 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: 7ff8d9cbe62c025c4773565a70681f3d101a4b9c4496eecd05e8ceddcc4799c8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b5bb6c5f517714dd5902713aaef8e4503caaeb4accf39bb8deeafc071441dde5",
    "cross_cats_sorted": [
      "math.MG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CA",
    "submitted_at": "2017-09-14T08:02:26Z",
    "title_canon_sha256": "b805bb061caa327575bb4f5e723f9008262f5334a320f2ee40b6a0bb42ec5122"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1709.04653",
    "kind": "arxiv",
    "version": 1
  }
}