Pith Number

pith:DTJWO6IV

pith:2021:DTJWO6IVMXVLZQMNXYNU262I7K

not attested not anchored not stored refs pending

Understanding the relationship between visual-angle and eye-angle for reliable determination of the field-of-view in ultra-wide field fundus photography

Devrim Toslak, Jiechao Ma, Taeyoon Son, Xincheng Yao

arxiv:2106.09095 v1 · 2021-06-16 · physics.med-ph · physics.optics

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DTJWO6IVMXVLZQMNXYNU262I7K}

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	2026-07-05T03:41:03.324952Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1cd367791565eabcc18dbe1b4d7b48fa90a3a868d444b5e31d94db4930001882

Aliases

arxiv: 2106.09095 · arxiv_version: 2106.09095v1 · doi: 10.48550/arxiv.2106.09095 · pith_short_12: DTJWO6IVMXVL · pith_short_16: DTJWO6IVMXVLZQMN · pith_short_8: DTJWO6IV

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/DTJWO6IVMXVLZQMNXYNU262I7K \
  | 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: 1cd367791565eabcc18dbe1b4d7b48fa90a3a868d444b5e31d94db4930001882

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "eae9a8b5e4d8f7e9e0187543a63052fc7a5ee2d03d77d6efd17f0cfc61e656ee",
    "cross_cats_sorted": [
      "physics.optics"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "physics.med-ph",
    "submitted_at": "2021-06-16T19:40:13Z",
    "title_canon_sha256": "606746ac28522acc815244c9d6f1d252f3b3d4ce12596e8639909be07f436d82"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2106.09095",
    "kind": "arxiv",
    "version": 1
  }
}