1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69092e9dcb699014d2a19a97d3169b967b68faaa0bb542abcce45a1cfb8a3fb0. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/00d9f0d7-e9e1-465d-8876-5c1618876d55.json and https://artists.proofprofile.net/proofs/artist/00d9f0d7-e9e1-465d-8876-5c1618876d55.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Young at Heart (with Ola Gustafsson, Jesper Nordenström, Dan Berglund & Christer Jansson)
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b8f3d69431c54e5ea7b4e32dab510704fa0274d5765f2398c17d062f24466bd. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2YQ0G7SZrlKeW1ypIxtT26.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2YQ0G7SZrlKeW1ypIxtT26.
{"copyright_id":"0x9bd3749f2e76b80947be54b3b45ef4e5970ee176fc302df3fd028145bca80f44","isrc":"DEA891500173","name":"Harvest Moon","registered_at":"2026-06-17T23:49:29Z","spotify_id":"6jWNWeErGVYw8JakgNvbLL","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bd3749f2e76b80947be54b3b45ef4e5970ee176fc302df3fd028145bca80f44. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6jWNWeErGVYw8JakgNvbLL.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6jWNWeErGVYw8JakgNvbLL.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x852bb88eee615ee697b2c5020542ba145d86052c37970965ca65fd6d2ba78758. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5R2up8HJBjW4FpcxUkO1kV.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5R2up8HJBjW4FpcxUkO1kV.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d80778884181a45508445780c7fb6a15ea5f6859a3c825fd11dba567d0d32f1. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5poj9c10waCbBqSzzQhx99.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5poj9c10waCbBqSzzQhx99.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa915188ca5fa35ea916f66f552f164d92fa4b2b7ee9eb6852b868df0beab696c. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/361WCShBugJ1BR0BwBQkdI.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/361WCShBugJ1BR0BwBQkdI.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x580b5682d367d521e3bb3cf969ffc4c41d50a151e150a65bd233528cd3aef047. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1NhenYgJpyzKnJ3fESyo2u.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1NhenYgJpyzKnJ3fESyo2u.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e7b0e725519aa4277ff4f850c22204d8abe4cb2a578d0c077238615b3e06a13. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3p2foRh5LnZnbyxx2cRJ4H.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3p2foRh5LnZnbyxx2cRJ4H.
Upgraded in Gothenburg (Bonus Track Edition) [feat. Nils Landgren, Ida Sand & Magnus Lindgren]
Fahrt Ins Blaue II (Groovin'in the Spirit of Jazz)
Magic Moments 11 (In the Spirit of Jazz)
Fahrt ins Blaue - Relaxin in the Spirit of Jazz
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c6b9e9a84f47cc6c44277d8913b4eee3f724f37da13a5813fc13a904940c421. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7hVsD7hAfZELOrKdxGxRS3.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7hVsD7hAfZELOrKdxGxRS3.