Pith Number

pith:BJ6RHKS3

pith:2025:BJ6RHKS3BO674UICNJRYQLTDIQ

not attested not anchored not stored refs pending

Extracting Structured Requirements from Unstructured Building Technical Specifications for Building Information Modeling

Insaf Nahri, Mathieu Thorel, Nicolas Bus, Philippe V\'eron, Romain Pinqui\'e

arxiv:2508.13833 v1 · 2025-08-19 · cs.CL · cs.AI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BJ6RHKS3BO674UICNJRYQLTDIQ}

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	2026-07-05T11:56:08.347389Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0a7d13aa5b0bbdfe51026a63882e63443390c180403c9fd043a0a50dd9d43fe2

Aliases

arxiv: 2508.13833 · arxiv_version: 2508.13833v1 · doi: 10.48550/arxiv.2508.13833 · pith_short_12: BJ6RHKS3BO67 · pith_short_16: BJ6RHKS3BO674UIC · pith_short_8: BJ6RHKS3

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/BJ6RHKS3BO674UICNJRYQLTDIQ \
  | 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: 0a7d13aa5b0bbdfe51026a63882e63443390c180403c9fd043a0a50dd9d43fe2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1d152e0a984e6c94a9ff730676fab5581b5dbac3b64671f6ce582d5b90cea04e",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://creativecommons.org/licenses/by-sa/4.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2025-08-19T13:55:41Z",
    "title_canon_sha256": "e8afb1623450e095516fade072232974572cfbfa7c04befe55880c9e46519d59"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2508.13833",
    "kind": "arxiv",
    "version": 1
  }
}