1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 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 0x7ed0e1649c601464d422ba31b6c8e61f1a1fb5fe73b7e7cd38c58425981e3b31. 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/41761bec-9783-464f-adef-824aae60c6be.json and https://artists.proofprofile.net/proofs/artist/41761bec-9783-464f-adef-824aae60c6be.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x931ba59af4884df72df3e5f93d62d84c89576d5326047c1b2efdce63e77af3de. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHNC2127251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c198f3d9093d88585e6aefb08122b3b0d852906b0c3b71b0f760c608dda9a98. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHNC2127252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf28260679238f7fc2c1b87bb59712cb03d260030acca086f9ec8fa3c9bdec5d. Chain 2 (Bitcoin): anchored in block 958880 (2026-07-20T15:21:18Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWT2050546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf00b526e3156978318d212f8b8fa12310a2774b1347799a17f9634e5da3e89c6. Chain 2 (Bitcoin): anchored in block 958736 (2026-07-19T15:47:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWT2074033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49eeeaaf26264c0946add32b13acf08b688c4bcd609ebc83c5974b57e9405402. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ZA41S2226326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5155117d198291e3aa7d74e1d5d466052d26c64843729b554454dd9d082a108. Chain 2 (Bitcoin): anchored in block 958585 (2026-07-18T17:05:16Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ZA41S2100593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0549b2bf156e3a56d669695cc4883fe3bce24c01e6152cd94edcd3723590744. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ZA41S2100603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe9b87139c79db25e9e833b6f9836bb306226709d84c6d809e3fadeffc81a9a5. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ZA41S2100606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc90f08654caa1f58f4c99857efdafc4300e178633e8a8a489def7c8fbc895517. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AOA1D1900020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f021c933f950c422cd5eaad97a91479b13c04d25502c54c26a4b0ce73aa3a83. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ZA41S2100601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5c075ea082d3cf4132313a5d7d0a61fb9b47e5273b97841625ae45b179fc0d8. Chain 2 (Bitcoin): anchored in block 956637 (2026-07-04T10:56:23Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ZA41S2021022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd8b04f9c07b495a6a21c7fb2819aca5a61e700b7bc1338769007f945657a545. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ZA41S2100006.
Ndombolo (feat. AbduKiba, K2ga & Tommy Flavour)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccbf4f18776247c8f301e84789ac1019e1e0e6cb94429a0b2c483637a4ebab41. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ZA41S2101253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9769da40f98dcd6f937ca394b0a308c9d2cbe6a0c8dba49cbf663083fffd27d8. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ZA41S2101443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1511365391ab952b22ba9f142f32536db17a4cf8e02e76d16f00141995d6777d. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ZA41S2101955.
Tamba (feat. Tommy Flavour, K2ga & AbduKiba)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb0d2f02bb8edfa5e7563c9c070cdf64a29d98ded5ec4ef9868621a99feaf8b5. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T10:49:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ZA41S2101958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9769da40f98dcd6f937ca394b0a308c9d2cbe6a0c8dba49cbf663083fffd27d8. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ZA41S2101443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3412bde251bd3a435161ec9738a6f775e14f03d3d84077411c9185371a53eaf. Chain 2 (Bitcoin): anchored in block 958708 (2026-07-19T09:08:25Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ZA41S2101950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd8b04f9c07b495a6a21c7fb2819aca5a61e700b7bc1338769007f945657a545. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ZA41S2100006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bb7618d737888936c8729c00d3eee8f305f7e0e4d6ed7e0f4fdd456e528f7e5. Chain 2 (Bitcoin): anchored in block 958390 (2026-07-17T09:35:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ZA41S2101959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfb491f5ff58b495962464bd196fdb587e25b5d429a06183d37a75ab7a6db44d. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ZA41S2101949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x716580d3600f0765e36b5d56d3b2a8ced1515b031a396165598e2f0e2c6ebc2b. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ZA41S2101184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x771650fe363bb917d6a78f4293cf0ae4a3304e9f2c4cc64bd17819ae31446c2b. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ZA41S2225831.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac2a43f9c271a89d52ef317a379d99ce24885c07a10f6ac5dfbb248dbb2cb40d. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T20:12:32Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ZA41S2225830.
La La La (feat. K2ga, AbduKiba, Vanillah & Tommy Flavour)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6d0e47320c959670333c42b28a32285a0f8787f9daa358ca0be5298bf1b8dbe. Chain 2 (Bitcoin): anchored in block 958083 (2026-07-15T01:50:31Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ZA41S2302079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71f2c4978d839ffcd8d9dbada9b6d6ef30f48b2beb882f9e2f355d29a956c877. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ZA41S2304767.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe327bd7775f71fa4609ec49d77d0163fd74e5ad0db1c8b1e9cbc2de96fdf4529. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T09:41:29Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ZA40S2401950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x181509f5ccbff70abca762986b9babc217b016dc2d58a6e9e0dbe3facfbf2137. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ZA40S2401951.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27486c851c67aa043134c60bc71d13bae19d344c8bd88883a0cb27b75cc3981e. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ8LD1987152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb002d6d961858d388352007d66cee5038fb9ed4121cfbb6799fe83e775c0dee6. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ZA40S2402170.