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 0xe4f3a5a3a6009c4cd116c3772764a092e14df3c52410a1029e425f12eb436b2a. 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/6ced04ac-63bc-4645-af23-6362e44b8d93.json and https://artists.proofprofile.net/proofs/artist/6ced04ac-63bc-4645-af23-6362e44b8d93.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 0x3b66174a9769442d7d8bdc0a5de3f73251dd20564559430439ca0b76ebf1040a. 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/0OmY1UIwef0i3l7s6Ylnkb.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/0OmY1UIwef0i3l7s6Ylnkb.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7873b220b4312184d3a067fe7cb68e78db7a0b665b0dcbe855b1cb35138aa19a. 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/0is9dlmHzTT09LcsQw508L.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/0is9dlmHzTT09LcsQw508L.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x214f09fa1f184ac64a790521bc5f75f111fc5991d9e1fa8c8b31c688e0ab3c1f. 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/5YR93lahfoSqt6D238qb6I.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/5YR93lahfoSqt6D238qb6I.
{"copyright_id":"0x00f3817fe922f570c988006ef0af792adb1d35f5ce0700bb8f4ff13791b27afb","isrc":"QZS672297276","name":"Smells Like Teen Spirit","registered_at":"2026-06-18T12:04:26Z","spotify_id":"4pqe3JIgoLVubSqcvrhfGc","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00f3817fe922f570c988006ef0af792adb1d35f5ce0700bb8f4ff13791b27afb. 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/4pqe3JIgoLVubSqcvrhfGc.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/4pqe3JIgoLVubSqcvrhfGc.
{"copyright_id":"0xf4fefa8e8565f13e3864be5599cb7a5f8dace9198ae260c3c09da6ce36553cbc","isrc":"BE8LH2400338","name":"Long Long Gone","registered_at":"2026-06-04T12:33:37Z","spotify_id":"7utoPRJGyIukwlLmZJozQB","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4fefa8e8565f13e3864be5599cb7a5f8dace9198ae260c3c09da6ce36553cbc. 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/7utoPRJGyIukwlLmZJozQB.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/7utoPRJGyIukwlLmZJozQB.
{"copyright_id":"0xc1741a26884e22d39a831cd753d0955a5867afade82ce73f5d77b22ebfa4eef9","isrc":"QM6MZ2165480","name":"Want You Around (Letter to X)","registered_at":"2026-06-27T14:17:14Z","spotify_id":"6wtJVf3zRzCcvfFYqAYqAi","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1741a26884e22d39a831cd753d0955a5867afade82ce73f5d77b22ebfa4eef9. 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/6wtJVf3zRzCcvfFYqAYqAi.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/6wtJVf3zRzCcvfFYqAYqAi.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca908c0cfcb1036f5829b89eb68aeb10960ca71d222689fa4198e4b1078076a0. 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/7LdhQVYLuCvDvbKL52QdVw.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/7LdhQVYLuCvDvbKL52QdVw.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd50f08c8fde73ef3fd2780568c14c77f0b098264fa63721518e456563eaa283f. 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/7u6v6hkSb05kT92LbCs4Ww.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/7u6v6hkSb05kT92LbCs4Ww.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b62e04327b04c1c4e4311a996e0551244bf43057356d5f9cd3d145e78c429fe. 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/4y1F97KFV1IL0wpMwsh066.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/4y1F97KFV1IL0wpMwsh066.
{"copyright_id":"0xbed67315fb2d05b9dba76becbf4718fda480155c576d800ff15dea6db0e05b47","isrc":"QM4TW2232387","name":"Stand by Me","registered_at":"2026-06-06T10:50:52Z","spotify_id":"4KJcNQRWUmdE56c3li6Qy0","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbed67315fb2d05b9dba76becbf4718fda480155c576d800ff15dea6db0e05b47. 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/4KJcNQRWUmdE56c3li6Qy0.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/4KJcNQRWUmdE56c3li6Qy0.
{"copyright_id":"0xfc16e471726e1d74d120b65ef71551e02e353443d8d878c4ca79f98c4923cb60","isrc":"DK4YA2095001","name":"I Need a Miracle (feat. Emelie Cyréus)","registered_at":"2026-06-10T14:30:47Z","spotify_id":"0PrDSs7hQaGCoanSR4T164","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc16e471726e1d74d120b65ef71551e02e353443d8d878c4ca79f98c4923cb60. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0PrDSs7hQaGCoanSR4T164.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/0PrDSs7hQaGCoanSR4T164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc64af48d7913f7c7829cab19864fdcc6c4e7c3e0868f92b1130da23f01d9777e. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0f07nd1Vh5ccjFQSxt6BuF.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/0f07nd1Vh5ccjFQSxt6BuF.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41da0740f63888b9245929b24c1f658ad21641f0d39a56d22daa1c2658e7c126. 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/0sAhmiTaOZ8cgtjs5Vc0c1.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/0sAhmiTaOZ8cgtjs5Vc0c1.
{"copyright_id":"0x1f0319fd36b8ea6f28e2ce958e2e2cd6035aa82dd70af2162e0f0f9f7c3705ac","isrc":"GBSMU8275035","name":"Keep on Going","registered_at":"2026-06-19T16:37:56Z","spotify_id":"3F7dMeEsHff79JoJadYOt5","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f0319fd36b8ea6f28e2ce958e2e2cd6035aa82dd70af2162e0f0f9f7c3705ac. 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/3F7dMeEsHff79JoJadYOt5.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/3F7dMeEsHff79JoJadYOt5.
House Radio 2021: The Best of Collection
House Radio 2022 - The Ultimate Collection #6