Pith Number

pith:7TVL4YWZ

pith:2015:7TVL4YWZVB36ZDWCFVD3WCHI4D

not attested not anchored not stored refs pending

Reconstruction formulas for X-ray transforms in negative curvature

Colin Guillarmou, Fran\c{c}ois Monard

arxiv:1511.05516 v1 · 2015-11-17 · math.DG · math.AP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7TVL4YWZVB36ZDWCFVD3WCHI4D}

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	2026-05-18T01:26:40.063215Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fceabe62d9a877ec8ec22d47bb08e8e0e776b6ff6ef6d95760788f538d56c15d

Aliases

arxiv: 1511.05516 · arxiv_version: 1511.05516v1 · doi: 10.48550/arxiv.1511.05516 · pith_short_12: 7TVL4YWZVB36 · pith_short_16: 7TVL4YWZVB36ZDWC · pith_short_8: 7TVL4YWZ

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/7TVL4YWZVB36ZDWCFVD3WCHI4D \
  | 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: fceabe62d9a877ec8ec22d47bb08e8e0e776b6ff6ef6d95760788f538d56c15d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bbc26718b8057a46373303ab8957fc36311ea5507b31932c0894129564ba6844",
    "cross_cats_sorted": [
      "math.AP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2015-11-17T19:35:29Z",
    "title_canon_sha256": "dfe1611b451ae5ebceabec700ce55373933603c724e5adcd1d9400beadce454a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1511.05516",
    "kind": "arxiv",
    "version": 1
  }
}