ISRC SEWDL6012904
Verified recording
SEWDL6012904 is “String Quartet No. 1 in D Major, Op. 11: II. Andante cantabile” by Pyotr Ilyich Tchaikovsky,
registered on the CopyrightChains blockchain with CopyrightID
0x1f5ff0c74e29692a9180c189b92e4eb2b0395395517bb0ba07bbade0c171b1ed and independently timestamped
in Bitcoin block 957118 on 2026-07-08.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEWDL6012904.
Recording identifiers
- ISRC
- SEWDL6012904
- Title
- String Quartet No. 1 in D Major, Op. 11: II. Andante cantabile
- Artist
- Pyotr Ilyich Tchaikovsky
- CopyrightID (CopyrightChains transaction hash)
0x1f5ff0c74e29692a9180c189b92e4eb2b0395395517bb0ba07bbade0c171b1ed
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-08T03:20:19+00:00
- Bitcoin block
- 957118
- Canonical record hash
sha256:bcc33bc26f0fea5accf08215d0129543cdc43a7e1dca8189a133c7cede3b359b- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEWDL6012904
- Bitcoin block existence check
- https://blockstream.info/api/block/957118
Full record
Track page: String Quartet No. 1 in D Major, Op. 11: II. Andante cantabile · Machine-readable JSON-LD