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 0xcced2b77afe14f93ed9a55d1170e164f164bdadaa2392795d43370c91bf4b1e2. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/89dba1af-3100-44db-9dfc-bf649ebc5642.json and https://artists.proofprofile.net/proofs/artist/89dba1af-3100-44db-9dfc-bf649ebc5642.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 0xaf6c6f3174a708f68f2504be045002af0a291284054f2a2793e79195a89c61ad. 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/6qHpFdLSKQfsOV7flyn5iy.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/6qHpFdLSKQfsOV7flyn5iy.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fa35fbfbc5bf64d9c72de0cee63ba9a57207dcdf319d9915b5784f1471d2d1e. 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/7Fi3LQ7jxy0nDt0xM8wOfI.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/7Fi3LQ7jxy0nDt0xM8wOfI.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x047adb0758904e28231c1bdca9dbcdb62c609054ad30102d5327b31676155302. 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/0szMRcwdsvxAFasOykJ07j.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/0szMRcwdsvxAFasOykJ07j.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0526512563b61ce0a73a7777aab2b10b32d8cb317ab2a925e9b2b937b82d6f7a. 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/7j3FOmwYbCQWxBDbC0h1vN.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/7j3FOmwYbCQWxBDbC0h1vN.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b6774568773e93f5c7fdc18a549f7ee74ac000fe1f3d5945a1c27f6e2f6f4f8. 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/3tn0kkV9D2S0wxU754dJTO.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/3tn0kkV9D2S0wxU754dJTO.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa595abc6b7bfc61bf909518cc4eea221654958b3ad67d252af57ed582b5d85e7. 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/7GIttfNXxT7T0itXeMOHOU.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/7GIttfNXxT7T0itXeMOHOU.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf223642e8f18096083ce390d828699f5deecb376c6f0b108c7a151b40b091ef3. 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/6sbXvc0MCyf05JbdApuzaA.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/6sbXvc0MCyf05JbdApuzaA.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4660944dca5d128a2a5f01d119c8fff92f8bb50faeee166c97fc9cb89486031a. 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/17h1ICmQsAnI0SrSeQLEzG.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/17h1ICmQsAnI0SrSeQLEzG.
{"copyright_id":"0xc9dc531e8e6804e0ce41b657306c077105ae0c71a031de7dd7ecb8b9be1d35fe","isrc":"DECE72202219","name":"Nur für die Stories","registered_at":"2026-06-08T02:09:08Z","spotify_id":"3Crq4T8WA5qSS60IU4JoK7","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9dc531e8e6804e0ce41b657306c077105ae0c71a031de7dd7ecb8b9be1d35fe. 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/3Crq4T8WA5qSS60IU4JoK7.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/3Crq4T8WA5qSS60IU4JoK7.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa68c1acf0f5cddbe6c348b83266182af37dcf3d712176b2d1ec82807e59805ed. 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/5W3onQ43lDyOAdoLmx82Ku.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/5W3onQ43lDyOAdoLmx82Ku.
{"copyright_id":"0xb4adb0a9c76a1978cfea87a5caa7a9e2a62ca47866ff2d3b6c17ee988e4d9d87","isrc":"DECE72202221","name":"Keine Tränen","registered_at":"2026-06-04T11:47:34Z","spotify_id":"0TExrpemmt9Yt9GkOTzwJf","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4adb0a9c76a1978cfea87a5caa7a9e2a62ca47866ff2d3b6c17ee988e4d9d87. 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/0TExrpemmt9Yt9GkOTzwJf.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/0TExrpemmt9Yt9GkOTzwJf.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6385120b1acd38e007fda917fa57429fb26d231128401e4357a7687a02b73118. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2Jeq4yL9mLv6o8AAdx8AT8.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/2Jeq4yL9mLv6o8AAdx8AT8.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5fc16a576ba2a57d1710a27a63f8e61e687a1c280b422c0a6fe35558e30a355. 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/1gO3KlEKH5ubL6Sj2ClX7l.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/1gO3KlEKH5ubL6Sj2ClX7l.
{"copyright_id":"0x571b831cdaccef1b15ed5de665eef6ad8b439c14a969c632b3040cc67bbd9b64","isrc":"DECE72202224","name":"How to survive","registered_at":"2026-06-07T06:35:33Z","spotify_id":"0UJL0lbORhZEBCkIFpqbqA","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x571b831cdaccef1b15ed5de665eef6ad8b439c14a969c632b3040cc67bbd9b64. 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/0UJL0lbORhZEBCkIFpqbqA.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/0UJL0lbORhZEBCkIFpqbqA.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4660944dca5d128a2a5f01d119c8fff92f8bb50faeee166c97fc9cb89486031a. 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/7nftwanrXNZxK2l1W6tmHl.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/7nftwanrXNZxK2l1W6tmHl.
Hip Hop made in Germany - Hits & Klassiker