Pith Number

pith:7536YZ3T

pith:2008:7536YZ3TAWBGMBTC4C7ROKNWFX

not attested not anchored not stored refs pending

Relative and absolute calibration for multi-band data collected with the 2.2m ESO/MPI and 1.54m Danish Telescopes

A. Calamida, C.E. Corsi, G. Bono (OAR/INAF), L. M. Freyhammer (Univ. Lancashire), P. B. Stetson (HIA/NRC), R. Buonanno (Univ. Rome)

arxiv:0801.0693 v1 · 2008-01-04 · astro-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{7536YZ3TAWBGMBTC4C7ROKNWFX}

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	2026-05-18T02:16:02.267779Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ff77ec67730582660662e0bf1729b62dcc2594479f641c8ebfbdf5381dbdbc8d

Aliases

arxiv: 0801.0693 · arxiv_version: 0801.0693v1 · doi: 10.48550/arxiv.0801.0693 · pith_short_12: 7536YZ3TAWBG · pith_short_16: 7536YZ3TAWBGMBTC · pith_short_8: 7536YZ3T

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/7536YZ3TAWBGMBTC4C7ROKNWFX \
  | 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: ff77ec67730582660662e0bf1729b62dcc2594479f641c8ebfbdf5381dbdbc8d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fc4169d6e08930ff203147281380696047a5ccda0fd1142cc1e944caa873a631",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2008-01-04T15:47:01Z",
    "title_canon_sha256": "8ecc55eccc24b4475ce02b51cd21bff0c21a5119b8a6765f38166de7f8f04369"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0801.0693",
    "kind": "arxiv",
    "version": 1
  }
}