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 0x6577765e5d770fa7e3e691fee38ee68fad9f31da38694d00c8169325d6a1e96e. 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/371efbec-aa5d-4205-ac25-955bdbb71941.json and https://artists.proofprofile.net/proofs/artist/371efbec-aa5d-4205-ac25-955bdbb71941.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 0x2dd5de8ef67101ca6df24886690a18b3e5a4c0741262e83889fc6f1bceca6020. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/ITPT22100015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92bfe534fe50bb51dbe3b384f0da2dd099245eadec699fbeb57863c7a9018bb6. 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/ITPT22200007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87371d5f1b47461ad81d8dec681bfe7afaf198fe2cbae67b460de2ade7d8a007. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/ITUM72300060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fcf04d14851f0e2f34cbc812d851a18c13d8a268872176cc075c9997a2243a4. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/ITUM72300693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f5c56352370a1d6d8dc8e73cf0dc0e83d9ba6262cc444d7d7f22ae8e91d2547. 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/ITUM72300720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8bd8b866cff788df682965c08c5b7dc74a14d949791212d805f3938f2023bd4. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/ITUM72300721.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c95011e2305183079e33e6c46684a087ab04f16fae263bf50dbb3870230647c. 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/ITUM72300722.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fcf04d14851f0e2f34cbc812d851a18c13d8a268872176cc075c9997a2243a4. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/ITUM72300693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb16107c815ff2054cd5ac6efbd6f8bf78c2d0e17e51ea84f0810ae2f1b82a7a. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/ITUM72300723.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5182f365b6c8f7d293a6fe3441177b355b5a2c024fbce42586c5defbae50c2dc. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/ITUM72300437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e267ea11ee569c838b65b3604ab997c6d8772c1ee5a94624fd48e12112b26d6. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/ITUM72300725.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f079b9a41fca511a8f47f7f92552c8bf5d538774d771e4eba15761eccf82c25. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/ITUM72301055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecdb0fc9505769e06c92b6205cb8e36ff0c73a47eeeb5a1204ae814de227d10d. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T20:38:50Z), 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/ITUM72301257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01db7876491087064cc2400d3b70dc3053867ba45a7f110a52a3c0ba3d363cfb. 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/ITUM72301438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x331e5df6274bf2e110144c37db329b3fd933eac9095133aa6119b93fb5bd4541. 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/ITUM72301560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x737e47b66c14a83a50f6321724991051e48a02c5b06985bd645a1b6ae49b1643. 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/ITUM72400555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b957de35883f58b681bcb1c8c7cd51de598f5f0b348fafbdae48217b2691448. 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/ITUM72400605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd602d18c9ed85650f874557286391446992c7895c9fb1d1b9da00c733789a2d3. 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/ITUM72400602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9d480f2a363f87ce7226e820b045bb0292848ae68267501f66de0a6cc2dd150. 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/ITUM72400601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb19816a34b6fd929016e2e502fc51d64c4c8caaa0f1badc8a64591399c34aa2d. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/ITUM72400599.
Criminel (feat. Helmi Sa7bi & Gotti Maras)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc01ff6a43ea1d6e4f7b726773ed716ef6b9767470e6f66247ca3d4580f57cb3. 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/ITUM72400598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfeafcfc37b331b52d9841d35ee1ae918da472f8f9f50b3ca8f7402b2d6ea81cb. 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/ITUM72400604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64d50e70ac5c7bbfc0d804f1acbe67029ad7b7b5e8c5205ee36fb2a023312ef7. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/ITUM72400603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x737e47b66c14a83a50f6321724991051e48a02c5b06985bd645a1b6ae49b1643. 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/ITUM72400555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x931355c38ee86152b27ebb1b76df4ef81252ea40201fbb3a6eff04fcd5f8da30. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/ITUM72400597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x331e5df6274bf2e110144c37db329b3fd933eac9095133aa6119b93fb5bd4541. 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/ITUM72301560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x414570e00cf3403f101b11fd98de9befa3658b07c3bafb074ed879521c311cc3. 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/ITUM72400596.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb25f64951b842a953304e0081ae5f2ceb49d781dc10f30b6f90151105fa3d8f2. 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/ITUM72400606.