Pith Number

pith:BTPQD7KQ

pith:2013:BTPQD7KQ4UXCJMS2CWHKZ54K6Q

not attested not anchored not stored refs pending

Spectroscopic and Photometric Development of T Pyxidis (2011) from 0.8 to 250 Days After Discovery

D. J. Harman, F. M. Walter, F. Surina, M. F. Bode, M. J. Darnley, R. A. Hounsell

arxiv:1303.6592 v3 · 2013-03-25 · 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{BTPQD7KQ4UXCJMS2CWHKZ54K6Q}

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	2026-05-18T03:29:38.413084Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0cdf01fd50e52e24b25a158eacf78af4021ef41548b147af64df510b9eec5c58

Aliases

arxiv: 1303.6592 · arxiv_version: 1303.6592v3 · doi: 10.48550/arxiv.1303.6592 · pith_short_12: BTPQD7KQ4UXC · pith_short_16: BTPQD7KQ4UXCJMS2 · pith_short_8: BTPQD7KQ

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/BTPQD7KQ4UXCJMS2CWHKZ54K6Q \
  | 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: 0cdf01fd50e52e24b25a158eacf78af4021ef41548b147af64df510b9eec5c58

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d237029f5ccf0070193e54d522d8beba80138cf429cb93dba0ffd7d9dfe9e849",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2013-03-25T17:34:31Z",
    "title_canon_sha256": "c2e4496d4da6a3ad51b8357f0372be99a1294ee58283916d2bdb2c53bb56fac6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1303.6592",
    "kind": "arxiv",
    "version": 3
  }
}