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 0x21111fd92c4288693d42e783a46f8c6a1465fb161bdec94a57d47c9e5ab2efa1. 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/df765e96-6062-463d-b433-50c4484c5934.json and https://artists.proofprofile.net/proofs/artist/df765e96-6062-463d-b433-50c4484c5934.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 0x5076bb8cd3e2f7912ff5bf25da18e414d788fb6b22ea7660d460e047728f193e. 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/DEDQ40700038.
Fuck Tha Police 2010 (feat. Godsilla & Navigator)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf757bc481cb630473a4c7a2e329944931c943b8f2db9f6df6bfde1a9075f2593. 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/DEQ121009504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80f5aa0ac2efe0c5e0f1a9d466d9a3eb8b19d7d717fb1e98677811387de31b71. 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/DEE860700335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59284229bad13801e13ecdf419d55b2e3c9f9f896b01dd2ce2908e5b5c00e25a. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DEZ470801028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80ab257ee1e60a8b75b53112c0e645e5105469ad3e717f34051a916f0c7e9e30. 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/DEZ470801029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8ec5259514b3f4162a7f235ee15f778029368f14ea00e4749d5fb1c4f8f7f93. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DEZ470801030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x590730f1234ca74546a672d22442c764989df91fec56c12f8a886cbce120f100. 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/DEZ470801032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e081c49dc4aca2ee09242d1d0fc3d56f8adcd6c712082ec3ef07ff5ce4a8c01. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DEZ470801033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb7ff4aa2af52f6d7c61e8e6c32d1f599ef8720b940b2a83be3e9a05c6f8eb7b. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DEZ470801034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bf8bb35adea500c090380ba5446699cb6546dfec6da829732e1ec4510729fb9. 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/DEZ470801035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x107f4a39f21e6700f2232e8ae93a291c27565a9dad16f483ff1e4a15d699fc15. 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/DEZ470801036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24f3de15a9aca712eee7e23f95bb1f8426522f69950c6b1577254e11a1798052. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DEZ470801037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe155b24569f5b2be4f6d144d8be6af867f3ac599c111c98c3a85b94f8f01eeb9. 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/DEZ470801038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f4743ff8705576edf36c2ed4bf2499c5c320160f0f019b51f4b255a2ea72c4f. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DEZ470801039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fba257ace07d9b740f9fac8081116eaf5e5351240fcf2d9907d14df6e16b916. 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/DEZ470801041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x843daeb377daf99b8fdf65e609ceaf49f6d6e778dfac01c2197701e2239f17cc. 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/DEZ470801042.
Maskulin Maskulin (feat. Bass Sultan Hengzt)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd31173681516733d005e7856e0a94a4da935516eec29dc40a24c1063093380af. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DEZ470801043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c156ed34500e308d62826dee22b21f9959be1616e653a2c4c76e641e0dfa9fc. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DEZ470801044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff18138987782f7722faccb8f7b77887134d3e08832478eaa23a9ac903c1eb09. Chain 2 (Bitcoin): anchored in block 960404 (2026-07-31T13:06:57Z), 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/DEZ470801031.
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