Pith Number

pith:32EDBQKR

pith:2015:32EDBQKR3YWHEVYR4F5GCL6G2B

not attested not anchored not stored refs pending

Light Echoes of Ancient Transients with the Blanco CTIO 4m Telescope

A. Rest, B. Sinnott, D. L. Welch, F. B. Bianco, J. L. Prieto, N. B. Suntzeff, R. C. Smith, T. Matheson

arxiv:1502.03705 v1 · 2015-02-12 · astro-ph.GA · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{32EDBQKR3YWHEVYR4F5GCL6G2B}

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	2026-05-18T02:27:16.968666Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

de8830c151de2c725711e17a612fc6d07161fead022d00093de831a0e1d1b152

Aliases

arxiv: 1502.03705 · arxiv_version: 1502.03705v1 · doi: 10.48550/arxiv.1502.03705 · pith_short_12: 32EDBQKR3YWH · pith_short_16: 32EDBQKR3YWHEVYR · pith_short_8: 32EDBQKR

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/32EDBQKR3YWHEVYR4F5GCL6G2B \
  | 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: de8830c151de2c725711e17a612fc6d07161fead022d00093de831a0e1d1b152

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cd2b1927a17b5623479d186cd222a24713dec05c083fb39880ccc28146c43ecc",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2015-02-12T15:39:59Z",
    "title_canon_sha256": "2c3994501e571a4756539c244b9480450c10af01ac2d3d941a0ada82a9a5b05b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1502.03705",
    "kind": "arxiv",
    "version": 1
  }
}