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 0x23d873d168322517340cb8d8a419b1586501a258e935342c05e694204fbb8fce. 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/de81dd96-e6e6-4885-b1af-a5b5ccfb4b6b.json and https://artists.proofprofile.net/proofs/artist/de81dd96-e6e6-4885-b1af-a5b5ccfb4b6b.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 0xbbb3c2681e60b82fbde259f7e35a0f250e1474ab8f04884eed99844aaed22e43. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/DEE860201131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdcbeed8957be1b34a610b98bca3106184ce7f02c3305639f0ddd5cb716de484. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/DEE860300452.
The Sweetest Ass In The World (Radio Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3bf05a3e3d68a55dc2c26e57d234ccdea132ed14b80e7a7bd5b0e1756f4965d. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/DEUM70713230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdccff5642f62bfd428d28c0f322d1494ef773b7419e07b872cf7c7dc1c448166. Chain 2 (Bitcoin): anchored in block 958121 (2026-07-15T10:31:05Z), 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/DEUM70713236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23f5994257ce47bb124a864389d984be635c09540485bf4ce9171ccefd05c0ae. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/DEUM70713234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa300d659b9428cd7ae4a530698c1875aae90524e82dcde98f6d4ec6c0da9cc51. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-16T00:43:02Z), 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/DEUM70713237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x771a20c1e670d82f74eec36b07f94a08731b8540f225156ff82e812cd4bcb28c. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T10:17:52Z), 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/DEUM70713240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb77fe7d7daa4d04660b5c81b96fa56cde369cd01e97c6fc2494963fef3b0584a. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/DEUM70713238.
Tu as Le Plus Beau Cul Du Monde - French Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d964130de2cecfba3f127f743ec20e9ba2643b9ec588db676aaf0fe754c7704. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T23:11:17Z), 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/DEPI82020185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e251cab97b824ce3b173a67dce647531e4929e2d5b05a3a51b330578ebe903c. Chain 2 (Bitcoin): anchored in block 958622 (2026-07-18T22:58:55Z), 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/DEPI82020187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b57dad6d308d9619335abf8821c29acb05c44b3123775ecd8101086d34ee026. Chain 2 (Bitcoin): anchored in block 958404 (2026-07-17T11:34:58Z), 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/DEPI82020188.
Du Hast Den Schönsten Arsch Der Welt - Basshunter Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc91e70253acd82cb8670cac498e92ffa5a674b216a164ef30b061dc0bedd62c5. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/DEPI82020189.
The Sweetest Ass In The World (Alex K Remix)
The Sweetest Ass In The World (Steve X Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cfdcc736a9840ef7e3b2468816a7c15fb117d36fe330eeeefccc55cd8a96438. Chain 2 (Bitcoin): anchored in block 958695 (2026-07-19T07:37:00Z), 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/DEUM70807678.
Threesome Is My Fantasy - Single Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7cd776bf39f14ca36904b69cfabd2ea97f10742bf76dfba6aa2b68cf816be3c. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/DEUM70807963.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x165eccdd92154140c91a35f6e569b32af5ebd0b129ba519b4f8b6c8570c85613. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/DEPI82325687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a3cdd095290164e38165f9990adfae2f775c1037dfbc58781f0a6c654dda558. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/PLI360944060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2af8779e3c6890780898ebb95fe678385be4a39d8d341304161ea03f3525da7e. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/PLI360944080.
Love in the Morning (My Sex.O.S.) - Radio Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c4b0cececbc53d9981819d158b3a40bee079f495e166283466a932593584d6c. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/DEN061201207.
Love In The Morning (My Sex.O.S.) [Radio Edit]
Angel of Darkness - Pyjama Pack Original Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cbdc8fc98cfe66bf5aefbf5981e7294263f3aca3b9e271e34ce074f314eac98. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/DEPI82020132.
Doktorspiele (Official Nightcore Version 2024)
Du hast den schönsten Arsch der Welt (Official Nightcore Version 2024)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68b5bd23943ef9c4f15ad39f948dffbf73a442e6e757d040968d0a160f197506. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/FR6V80365401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb20c9626f805426212af415a7b400af5748f0f86a9640edc041b12d28f93d01e. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/FR6V80365404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05ccb1b3fda5ba5a08dc0d9a30336e35fe10534feed07837040d7a8acb81de09. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/FR6V81639942.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4587feb788f5ba8052ddaa99d2826fbe41648cf3fc3d84f1db87efe8b67af3a9. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/FR6V81233977.
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch