Pith Number

pith:WLHXG65H

pith:2017:WLHXG65HGVUMS6M6CSB5FCYELY

not attested not anchored not stored refs pending

On the propagation of singularities for a class of linearised hybrid inverse problems

Guillaume Bal, Kim Knudsen, Kristoffer Hoffmann

arxiv:1708.00621 v1 · 2017-08-02 · 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{WLHXG65HGVUMS6M6CSB5FCYELY}

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	2026-05-18T00:38:45.220156Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b2cf737ba73568c9799e1483d28b045e264bc1d49f8e21eba5b441e0c8242288

Aliases

arxiv: 1708.00621 · arxiv_version: 1708.00621v1 · doi: 10.48550/arxiv.1708.00621 · pith_short_12: WLHXG65HGVUM · pith_short_16: WLHXG65HGVUMS6M6 · pith_short_8: WLHXG65H

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/WLHXG65HGVUMS6M6CSB5FCYELY \
  | 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: b2cf737ba73568c9799e1483d28b045e264bc1d49f8e21eba5b441e0c8242288

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "86655cf3bad76072673fc101b28060897536d21b9b98edd1372f95d7b70edbd2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2017-08-02T07:25:04Z",
    "title_canon_sha256": "b3bd8e6f888d00b5632b97f7fd92be472d301a29c42a172dcb29852200200a6e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1708.00621",
    "kind": "arxiv",
    "version": 1
  }
}