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 0x098b3fdcba0e88cce91808ffc5f4c1d06ed2af52fca82dc8fe86f6d1e859063f. 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/e6e1dbb1-74b6-4b91-b82c-5bf5aa1dab7f.json and https://artists.proofprofile.net/proofs/artist/e6e1dbb1-74b6-4b91-b82c-5bf5aa1dab7f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
La playa y el oso - Versió musicada del poema Varsòvia
Nach (feat. Kid Pi, Sr. Chen, Emotional G)
Tu ets el Sol (feat. Dorian, Sr. Chen, Emotional G)
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 0xc903452e46a4e242464485fe947afc423bfd71366c39554a7be5b105072da052. 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/17qQLMjbplOiIARPiRpQL2.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/17qQLMjbplOiIARPiRpQL2.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d5826e523111de229d01e8242026466eefe3fa9fe398f25c47db2997a5927ac. 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/12ypDkzl6HN34UMC9Uz4fY.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/12ypDkzl6HN34UMC9Uz4fY.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47acddd2198142dfcbe3e92f3e6c9e2670ec5586ed929b41ea3510776e4e8fe3. 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/5D5MqIkh5aQUVYX1yL1UQU.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/5D5MqIkh5aQUVYX1yL1UQU.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5eac571a92ee20968a43955e18611d5c5b6eff495280561494e951f76a5e3d0b. 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/1oXRZORL58suVbKeVmItJh.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/1oXRZORL58suVbKeVmItJh.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00eebe363d61bfa553a99356537d919c61acbdccbba5994b61ebd15e05079940. 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/5iE6rcvBF0f7W0MFX0cmSy.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/5iE6rcvBF0f7W0MFX0cmSy.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x531d38503a7e09a023c8af0f6c1c68119e790541e4a06303eaf058e6ac38fbba. 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/25tR8CchGsrd02RRAFintl.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/25tR8CchGsrd02RRAFintl.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x196204c5e34700076d1183f57462bca26b9bccdc42a9e0b2357d5b9d704aec9d. 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/33u66ZANRKb2n85qmSlRi5.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/33u66ZANRKb2n85qmSlRi5.
{"copyright_id":"0x0976a0fa9bd23f55bb6f35b7e6b1fd759c2ad636afc75a8cd4c08f0380275bee","isrc":"ES5952006409","name":"El Dia de la Victòria","registered_at":"2026-06-06T17:22:22Z","spotify_id":"4vBmIeI9iJZYMiP6BxTjG6","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0976a0fa9bd23f55bb6f35b7e6b1fd759c2ad636afc75a8cd4c08f0380275bee. 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/4vBmIeI9iJZYMiP6BxTjG6.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/4vBmIeI9iJZYMiP6BxTjG6.
{"copyright_id":"0x1648d7e4ccd301e2e3a80b32b3191f3aee2b64162e87f90041f1af75443fdbc8","isrc":"ARUM72100018","name":"Sigamos Haciendolo","registered_at":"2026-06-26T17:11:26Z","spotify_id":"57QnOWVevCVY2Nxyxdylwx","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1648d7e4ccd301e2e3a80b32b3191f3aee2b64162e87f90041f1af75443fdbc8. 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/57QnOWVevCVY2Nxyxdylwx.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/57QnOWVevCVY2Nxyxdylwx.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x430299fac03977b653e11c61d0a7701d036f959ac1b655f30b37fba648d6a37b. 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/77SiMxDJvkJtkfxu6CAZzd.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/77SiMxDJvkJtkfxu6CAZzd.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x430299fac03977b653e11c61d0a7701d036f959ac1b655f30b37fba648d6a37b. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2KJZJLoeXqSebfctya0f45.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/2KJZJLoeXqSebfctya0f45.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa57b93c6c2f92a17375936d3fc7f9b56d809137c29ad783c4fdeeb9105ff1700. 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/60jLcm9OrsatxLLJ7qJXja.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/60jLcm9OrsatxLLJ7qJXja.