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 0x39c7de634bbbd651e2055ef108e8a7f5ae2e3a4a3f1df4cc742b4c571a7062fb. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/dce8d5a0-c6fe-453c-b4a6-4d877db6e5f1.json and https://artists.proofprofile.net/proofs/artist/dce8d5a0-c6fe-453c-b4a6-4d877db6e5f1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0xbc12553ce9a77b626e78d742de42095dfc2c22dbe23fdc3279f6245500caaa97","isrc":"SEPQM0614692","name":"Du är så vacker","registered_at":"2026-03-20T05:34:34Z","spotify_id":"1Pr7gOjMOp2TuHzrPAujqA","type":"track"}
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 0xbc12553ce9a77b626e78d742de42095dfc2c22dbe23fdc3279f6245500caaa97. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1Pr7gOjMOp2TuHzrPAujqA.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/1Pr7gOjMOp2TuHzrPAujqA.
{"copyright_id":"0x3fc31baa550685c611db297d5b9393842fdf20c08ba15d2fc21b2c6ab0f1e435","isrc":"SEPQM0614561","name":"Mariann från Skrea Strand","registered_at":"2026-03-20T06:18:19Z","spotify_id":"2hDVNiXmYVhKBWgSSq7OQa","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fc31baa550685c611db297d5b9393842fdf20c08ba15d2fc21b2c6ab0f1e435. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2hDVNiXmYVhKBWgSSq7OQa.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/2hDVNiXmYVhKBWgSSq7OQa.
{"copyright_id":"0xac6b85b74edde75106a9cfb0b24b96a166605f9e3247d32fa9cf557ac1d1297d","isrc":"SEPQM0612513","name":"Donna Bella Donna","registered_at":"2026-03-20T05:43:44Z","spotify_id":"2xJvwgblDs3r8jVEqWEmF0","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac6b85b74edde75106a9cfb0b24b96a166605f9e3247d32fa9cf557ac1d1297d. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2xJvwgblDs3r8jVEqWEmF0.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/2xJvwgblDs3r8jVEqWEmF0.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77a00dc56201df7e05c584f0fbd98f8c94b12b639ca35e6315666c5a052faf5b. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6KrZAMMTftMUcoGDuGU2WZ.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/6KrZAMMTftMUcoGDuGU2WZ.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9a86094329f93007290874ba64567c08658405aba8b18f6f36cb3fb10ee43c1. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5I4DB2PRJvb4dqA9DqtUof.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/5I4DB2PRJvb4dqA9DqtUof.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7ae8fe50f9e0274844e4064b1a62aee32a1d22a02f48916455017d38534a967. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1e634la6fm3XYsy7cZBUiK.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/1e634la6fm3XYsy7cZBUiK.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddeb3a2f64b8d2701858d5afddc22b1296ae26848021f4d80b08ddb5be04907b. 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/2eAbzkTuk77xjI4nb4Lxn4.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/2eAbzkTuk77xjI4nb4Lxn4.
Jag ska alltid känna glädje (I guess it never hurt sometimes)
Jag Ska Alltid Känna Glädje - I Guess It Never Hurt Sometimes
Tänk Om Allting Vore Country (feat. Mats Rådberg)
{"copyright_id":"0x3b7d8da332ae3617d6b1741369adda4f9b759be4094a146468a81745e608c0f6","isrc":"SEVSZ1300102","name":"Tänk om allting vore country","registered_at":"2026-06-29T03:36:14Z","spotify_id":"3McWVs8a4HO839ZusqoGnU","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b7d8da332ae3617d6b1741369adda4f9b759be4094a146468a81745e608c0f6. 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/3McWVs8a4HO839ZusqoGnU.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/3McWVs8a4HO839ZusqoGnU.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc37994790b2467e1dc72259399fc96255883892c2c627cc4ac87504eb2251c48. 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/0CXYW6QoXZ6qT5tbqvZZnE.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/0CXYW6QoXZ6qT5tbqvZZnE.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7ae8fe50f9e0274844e4064b1a62aee32a1d22a02f48916455017d38534a967. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3ow6mR4XvpS0eAytwd7XYx.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/3ow6mR4XvpS0eAytwd7XYx.
{"copyright_id":"0x7a0b999d8a63ec2cc05a955f34329629f1eeda2835f687237aeb190fc59d39bc","isrc":"SEPQM0612971","name":"Ännu blommar kärleken","registered_at":"2026-01-29T03:32:22Z","spotify_id":"67kDLfliIOuBoXDbmh3gYD","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a0b999d8a63ec2cc05a955f34329629f1eeda2835f687237aeb190fc59d39bc. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/67kDLfliIOuBoXDbmh3gYD.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/67kDLfliIOuBoXDbmh3gYD.