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 0xce307068f9e1430cb2d2d732888b4956ebc4505e5659f2d151b8647f042eeff2. 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/92e843a4-fed5-4a1f-8c62-8d25a543f0da.json and https://artists.proofprofile.net/proofs/artist/92e843a4-fed5-4a1f-8c62-8d25a543f0da.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0xcb55c8c8056e979f1ffc0396ac39b18f123a9f52ed3231e08c1371cc4894f10d. 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/0CbNz8F2OUOfxOnZyV6pDJ.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/0CbNz8F2OUOfxOnZyV6pDJ.
Trinken ist auch Sport (Noisetime Remix)
Trinken ist auch Sport - Noisetime Remix
{"copyright_id":"0x19e8178b6cd28ec74ec39b5c5236d7fa4ac9e4ef682414cc292411f99e0bdfba","isrc":"DEUM72300449","name":"Trinken ist auch Sport - Noisetime Remix","registered_at":"2026-06-05T13:15:58Z","spotify_id":"3z5hKDrkdgD1PS0OLWKwJB","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19e8178b6cd28ec74ec39b5c5236d7fa4ac9e4ef682414cc292411f99e0bdfba. 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/3z5hKDrkdgD1PS0OLWKwJB.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/3z5hKDrkdgD1PS0OLWKwJB.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffe6e0c02a5165fa77283193067c60da9354097c01b790b52c85244e066dc960. 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/2LEXL4gU32Bd8pMQE7e1Mg.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/2LEXL4gU32Bd8pMQE7e1Mg.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d8c6bef50af7e05cd823c209d69013f51b8517eb2d3082fffb7191dd783ae7a. 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/1JmhLsvn2J4NEeCyDO5Q9k.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/1JmhLsvn2J4NEeCyDO5Q9k.
{"copyright_id":"0xd086f31fda31fe73500204a8446402cb2c3408c6553544b694b900a3dacae092","isrc":"DEUM72313435","name":"Endlich Wochenende, drei Tage Krach","registered_at":"2026-06-05T05:06:44Z","spotify_id":"20czp3CIsPmSX2XjKIO5cV","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd086f31fda31fe73500204a8446402cb2c3408c6553544b694b900a3dacae092. 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/20czp3CIsPmSX2XjKIO5cV.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/20czp3CIsPmSX2XjKIO5cV.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffe6e0c02a5165fa77283193067c60da9354097c01b790b52c85244e066dc960. 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/6vPDpwozd5ucOd5QO4Cb4r.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/6vPDpwozd5ucOd5QO4Cb4r.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffe6e0c02a5165fa77283193067c60da9354097c01b790b52c85244e066dc960. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2qO4stKjyxAyHaEjhGhTjC.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/2qO4stKjyxAyHaEjhGhTjC.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb55c8c8056e979f1ffc0396ac39b18f123a9f52ed3231e08c1371cc4894f10d. 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/4hMlOaWj5IjcO6VAi2ok1h.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/4hMlOaWj5IjcO6VAi2ok1h.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9811bc0987fc25d471d6600a1b928d495637118f9f84501c0dff484475c7b826. 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/5PdNvr8UUmOj11iGqTspQO.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/5PdNvr8UUmOj11iGqTspQO.
Schlager Fußball Hits - Ich Find Schlager Toll
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb55c8c8056e979f1ffc0396ac39b18f123a9f52ed3231e08c1371cc4894f10d. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2ue81iUxVGiY8cq1UeudQl.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/2ue81iUxVGiY8cq1UeudQl.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffe6e0c02a5165fa77283193067c60da9354097c01b790b52c85244e066dc960. 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/3V69Q7OG6TRm1vVFfRVhlK.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/3V69Q7OG6TRm1vVFfRVhlK.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffe6e0c02a5165fa77283193067c60da9354097c01b790b52c85244e066dc960. 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/047fKz4gl7ButU7C0yvAbg.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/047fKz4gl7ButU7C0yvAbg.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb55c8c8056e979f1ffc0396ac39b18f123a9f52ed3231e08c1371cc4894f10d. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3r1vk14xK7AupfHCN01QLA.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/3r1vk14xK7AupfHCN01QLA.