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 0xe043a6fb9f5d8af4e3ef891254bca6f6749841ccf0049eea980be60615e9c3b0. 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/12d741ae-abe3-4b1e-9644-246ba3338871.json and https://artists.proofprofile.net/proofs/artist/12d741ae-abe3-4b1e-9644-246ba3338871.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 0x58e5b59f805270dd270c1ab75958f2b84d6247e945254a6d4e36f7b53584ed48. 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/2CWb9Q82ZWEIXunDwv6mkI.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/2CWb9Q82ZWEIXunDwv6mkI.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f2879f8b282f2129b61031c02fa213a0636bfaffe0ad06afe1ba3825113ae88. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/530J8qL6EgGfl8wYm6xj5P.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/530J8qL6EgGfl8wYm6xj5P.
{"copyright_id":"0x547f37e9b9d9c52be6b3aac6d8f4804abb79c5ad9d61e5ca4550dabd11c3fcff","isrc":"TCJPT2220320","name":"FIRE LAND","registered_at":"2026-06-28T20:55:18Z","spotify_id":"0fYz3Pgkkxeh51mwKSO5Rm","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x547f37e9b9d9c52be6b3aac6d8f4804abb79c5ad9d61e5ca4550dabd11c3fcff. 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/0fYz3Pgkkxeh51mwKSO5Rm.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/0fYz3Pgkkxeh51mwKSO5Rm.
{"copyright_id":"0xf936de5fa0cec4a46fc558ad20bce86be2180647a0ebd63ee8cd800ede7bde42","isrc":"TCJPT2269115","name":"FRESH!!! (feat. Henny K)","registered_at":"2026-06-23T13:30:54Z","spotify_id":"5n2EYBtPJBlWE2VbcT4UaT","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf936de5fa0cec4a46fc558ad20bce86be2180647a0ebd63ee8cd800ede7bde42. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5n2EYBtPJBlWE2VbcT4UaT.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/5n2EYBtPJBlWE2VbcT4UaT.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c0d327cf759d8cebde05331cba3e806029457b95f0538bbb23a249331a13903. 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/5TRZOLd92OksSG1I04LziQ.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/5TRZOLd92OksSG1I04LziQ.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x051e1cce5bb753883bb61f95f4080cf97651e78b9f36dfd6b5d4c133d4f806b7. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5d0901OV306utjv7ALii1O.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/5d0901OV306utjv7ALii1O.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x051e1cce5bb753883bb61f95f4080cf97651e78b9f36dfd6b5d4c133d4f806b7. 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/0wNj2QNVdhG3XEzsIj3u3G.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/0wNj2QNVdhG3XEzsIj3u3G.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f2879f8b282f2129b61031c02fa213a0636bfaffe0ad06afe1ba3825113ae88. 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/5I7e7Hx7IaysBhIRiUmVdC.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/5I7e7Hx7IaysBhIRiUmVdC.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76776bec2075cb0acdb0884395cdb347afaee2e2d95049274e626bd984ba8f9f. 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/6AaePXUruO3297PugyiDwT.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/6AaePXUruO3297PugyiDwT.
SIVA (feat. MFS, SANTAWORLDVIEW, FKAK, Koshy & AWSM.)
D.LEAGUE 21 -22 SEASON - ROUND SELECTION - ROUND.3
{"copyright_id":"0xd2b4c511e6dd79cdf861e218d375bd6ea9dab7107a233dd6bd0c5552c6b2cc41","isrc":"JPJ902402060","name":"Please me","registered_at":"2026-06-07T14:20:28Z","spotify_id":"4AVNvjBIdgbxDwRzibOQIb","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2b4c511e6dd79cdf861e218d375bd6ea9dab7107a233dd6bd0c5552c6b2cc41. 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/4AVNvjBIdgbxDwRzibOQIb.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/4AVNvjBIdgbxDwRzibOQIb.
Manhattan Records® Presents JAPANESE HIP HOP Selection 2022