Pith Number

pith:F2UQH7FA

pith:2025:F2UQH7FAYWMP3LYE5KDXV67RKH

not attested not anchored not stored refs pending

Fiber to the Room: Key Technologies, Challenges, and Prospects

Gangxiang Shen, Jinhan Cai, Tianhai Chang, Xiang Wang, XiaoLong Zhang

arxiv:2504.20433 v1 · 2025-04-29 · cs.NI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{F2UQH7FAYWMP3LYE5KDXV67RKH}

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	2026-07-05T10:55:42.460391Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2ea903fca0c598fdaf04ea877afbf151e4507f09d270eae60c14b9be26f689c7

Aliases

arxiv: 2504.20433 · arxiv_version: 2504.20433v1 · doi: 10.48550/arxiv.2504.20433 · pith_short_12: F2UQH7FAYWMP · pith_short_16: F2UQH7FAYWMP3LYE · pith_short_8: F2UQH7FA

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/F2UQH7FAYWMP3LYE5KDXV67RKH \
  | 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: 2ea903fca0c598fdaf04ea877afbf151e4507f09d270eae60c14b9be26f689c7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f1075dc5389df69d10b0d369028ac1e4359194f4da5c6c87cd7c4ae1a572274b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.NI",
    "submitted_at": "2025-04-29T05:12:53Z",
    "title_canon_sha256": "9e59eefdae2f5f092d264356d786ff37fd28f56881b0cf2367cc89645945d48e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2504.20433",
    "kind": "arxiv",
    "version": 1
  }
}