Pith Number

pith:COJ7MCW7

pith:2023:COJ7MCW7CPIRKSIFHYYDQ3EQIL

not attested not anchored not stored refs pending

Borehole fibre-optic seismology inside the Northeast Greenland Ice Stream

Andreas Fichtner, Andrea Zunino, Coen Hofstede, Dimitri Zigone, Lars Gebraad, Olaf Eisen

arxiv:2307.05976 v1 · 2023-07-12 · physics.geo-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{COJ7MCW7CPIRKSIFHYYDQ3EQIL}

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	2026-07-05T06:30:14.905960Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1393f60adf13d11549053e30386c9042ebf935eacb75f25d01d6ed64db90c656

Aliases

arxiv: 2307.05976 · arxiv_version: 2307.05976v1 · doi: 10.48550/arxiv.2307.05976 · pith_short_12: COJ7MCW7CPIR · pith_short_16: COJ7MCW7CPIRKSIF · pith_short_8: COJ7MCW7

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/COJ7MCW7CPIRKSIFHYYDQ3EQIL \
  | 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: 1393f60adf13d11549053e30386c9042ebf935eacb75f25d01d6ed64db90c656

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c50893df5ac3e8887aa967fc52e87c5410701e50ebd7e47ebd6de732c63483ce",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "physics.geo-ph",
    "submitted_at": "2023-07-12T07:47:36Z",
    "title_canon_sha256": "4f35c9ddbeca84358a89155c8361e51a85b070942d177cd5d9cdb3d365da6811"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2307.05976",
    "kind": "arxiv",
    "version": 1
  }
}