Pith Number

pith:SC4BLN6E

pith:2016:SC4BLN6EUQH56ABGGMSLO6AP2I

not attested not anchored not stored refs pending

Reply to comment on "Observation of subluminal twisted light in vacuum"

Ebrahim Karimi, Fr\'ed\'eric Bouchard, Robert W. Boyd

arxiv:1612.01629 v1 · 2016-12-06 · 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{SC4BLN6EUQH56ABGGMSLO6AP2I}

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	2026-05-18T00:55:48.035805Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

90b815b7c4a40fdf00263324b7780fd214bbb7cec3ad345e6b18010345ed2088

Aliases

arxiv: 1612.01629 · arxiv_version: 1612.01629v1 · doi: 10.48550/arxiv.1612.01629 · pith_short_12: SC4BLN6EUQH5 · pith_short_16: SC4BLN6EUQH56ABG · pith_short_8: SC4BLN6E

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/SC4BLN6EUQH56ABGGMSLO6AP2I \
  | 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: 90b815b7c4a40fdf00263324b7780fd214bbb7cec3ad345e6b18010345ed2088

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f2f8e06170093167baab2d0d26f586ca556b46e2daae96f9cbdb8c215a594615",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2016-12-06T01:59:27Z",
    "title_canon_sha256": "1630ed2049cbbdaeb2611d9411f30694cc3ddfd6d50e8c5226cde11086bb7dbe"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1612.01629",
    "kind": "arxiv",
    "version": 1
  }
}