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 0x26131eceb5b927bba451c5ce7de5a3d6d3cdd93ba1e728d0f3f7ee0f0488afb7. 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/f07e30bc-fe3f-48bc-bed0-8d087eaace5d.json and https://artists.proofprofile.net/proofs/artist/f07e30bc-fe3f-48bc-bed0-8d087eaace5d.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 0x0146df2b544f305e73dec8f631240277ae4e26b52a4c17b79cc9c42b02465f98. 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/ITFR81710015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e87a3b6bed4d8756bd55f3c2c7337f951c51985519ff382e05b8df5ba189863. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/ITFR81710014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x236fa97201a744007a458762d3670dfe04dbd4ab9763d9980734e9fd4d813cf5. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/ITFR81710013.
CXXVI (feat. Ketama126, Pretty Solero, Ugo Borghetti, Asp126 & Franco126)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8164a8734e5780e74d2b15ad5e988e1e59ae58820a5e45131219163d2222be76. 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/ITFR81810054.
Spigoli (feat. Franco126 & Ugo Borghetti)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c189b12a42ab22ee2fa6ee09b2c1f63bd5cc44ebd40423ad8d307139d9dc51a. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/ITFR81810040.
Poliabusatore (feat. Ketama126 & Pretty Solero)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4034189f664618cf0469e97383023ae2f1b0f4fb47534b75d040a414355af1aa. 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/ITFR81810055.
Non a me (feat. Pretty Solero, Ketama126 & Gianni Bismark)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x183bb5b759df7f451bc5b8405174c7e0be1d294d7b2dbf5eade6e83adc4b1df3. 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/ITFR81810056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68bc972d9b86b84c0ca7646e307a617864dbdfc76d20446dc68bd820961cddd5. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/ITFR81810057.
Buono a nulla (feat. Franco126 & Ketama126)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fbdc21c30e92f43f656240af0e2e29ef67e7a7d7f9569acb514b9f885b63b5d. 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/ITFR81810058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bd3a469103b9f0b363671c48f7861cb7f9c921db59b3982351e58df65ab1ac0. 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/ITFR81810059.
Mille scuse (feat. Franco126 & Pretty Solero)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c21af3c1517bcd863ee794bdb2aaad7d2e66541e2e99cd41d65965997cd98e9. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/ITFR81810060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5b7d689e99ed7662c157e38ec8ad0dc17a8a71bc82e29a63f6197ec1864c9ff. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/ITPVA2300006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8164a8734e5780e74d2b15ad5e988e1e59ae58820a5e45131219163d2222be76. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/ITFR81810054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c189b12a42ab22ee2fa6ee09b2c1f63bd5cc44ebd40423ad8d307139d9dc51a. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/ITFR81810040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e87a3b6bed4d8756bd55f3c2c7337f951c51985519ff382e05b8df5ba189863. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/ITFR81710014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0146df2b544f305e73dec8f631240277ae4e26b52a4c17b79cc9c42b02465f98. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/ITFR81710015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x236fa97201a744007a458762d3670dfe04dbd4ab9763d9980734e9fd4d813cf5. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/ITFR81710013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8001986a9ff9216bff5832252ec33a04a63c2ce44085396569480be0a4ef017f. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QM4TW2391679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07fd2b44b2089260411de7beed4eee6a41c7f34540a34fc6995a50243720928e. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QM4TX2343829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5528e9b644eb5f4510535823c2137677cc74d280a5799a14beaf9f192543b716. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QMFME2253331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc88458f91ac2957340f28c6f1c774db87970c6e0b1854e8c73e18bf85ff115d0. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QM4TX2343826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7a86db47a2924acfca35c4dd6e872dfecdebe8b5a5582f952bb2620e7c1af02. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QM4TX2343828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bbd228b214cf7605a0de4d3156d727c6a85ec35bacbf1203512e1bca8fda52a. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QM4TX2281761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a17425f123991e174a4b689cd0226769ff52718118873bcda1b41e5e7583cac. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QM4TX2343840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc75f2a30ed0389c8793bfe1b63a6e9b67150b0cc525569e66b89046739486fcc. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QM4TX2343843.
Mani sporche (feat. Gianni Bismark & Lil Kvneki)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae98a7841fadf1c0e22c0f8d4b5244e122f6b20ba3cdfe317db0db1acd31ff13. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QM6N22285319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcabe2cde92a581e976642a620f6c1fcb21dde1d10329e763e5e720b406ba3586. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QM4TX2343841.
Triathlon (feat. Sosa Priority & Security)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b506e00300c269d359a4eb95f594a9cb12e5227c959cb4b33ccf08256d46c8f. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QM4TX2343836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9eb9416923a3cbc185aade0c720dee3eae32e7ea32aa9b08752bf3ac7033a4a. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QM4TX2343835.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4b6b4cd73948685aafbfbf4070c47cea419d0ddd820413cf76dcf57244c778b. 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/ITRWL1800175.