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 0xd013c6f7ba96ac16c7c4dd39d7f6cb781b853db25f8cf5cb3de8b3f1ffa4a7ef. 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/963efaa4-82ad-4511-a50e-ecff2795237d.json and https://artists.proofprofile.net/proofs/artist/963efaa4-82ad-4511-a50e-ecff2795237d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Baby Eu Tava na Rua Da Água - Brega Funk
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 0xe86b8b8c02fa00e32b013aeb22a2063b62f42421631a0ba6b92b0396d6001599. 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/BCE7P2400074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe85ea5de7851be5137dc53442026c7770f86536b654b815613c21e3d38e4fa9e. 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/BCHJR2400007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe00a4bccd7d0edbcdb304746f20bf1a7d928878e5a06cbb7c6ec7f43dcb11d83. 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/QZHZ41909299.
Vai Descendo (Brega Funk Remix) (feat. Js o Mão de Ouro)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c786ad3db7b360f8a23b4d29cf2c7f0ef632c7104cbbe36e7b9d04a803b9f45. 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/BRRGE2011076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf75be4364713e83585b978ae545ef2bb025499ca0ce9f9629f425c121782ace4. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/BCAPW2300104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3f8bf6fb37fc0fea9b71213bf5b8cc17b926925f278e81fc73d96e7266c9ed3. 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/BCFUT2100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fdb6418c579ca2298113ebeb1857933e1ed46dd420088eff8cf75e1a2b9b73a. 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/BRSME2200470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fdb6418c579ca2298113ebeb1857933e1ed46dd420088eff8cf75e1a2b9b73a. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/BRSME2200470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2858135f82727dcc13f8aac704d402149ae092cbf4bd4e5d9827220e162a947f. 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/BRWMB2000032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3032ae5bf529e5df4d97cea3eaa073632b015281ebeaed8416be1006f2c6a02c. 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/BCDHP2300046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c93bb12979c3d225812f0b0e22b1ffadcef38b111043bc913de0c6b731434b3. 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/BKA822300275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeae4c1bb0283140d3f89feab74d0b99a502919687cafd09dbcf9c6d8b3086362. 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/BCDHP2300071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd989fc31b5a5495187ed03e0d84cfb72efa0fee1dd2e16b4796398e16562cde6. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/BXG6R2400436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79f1efb2a43d71cdd9c788ccf30d95e1ff76749b7f674226c9492766483bc938. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/BRUM72202169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x209d03d482c73dfaa54d0c73b9ae6542ab52e196c620cf1397004bb906b82ef2. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/BCAPW2300092.
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07ed7be387bd5b66f6596aff8fda679b6c3aef79e1843ef6f3117fe54d032f63. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/BCDHP2100309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62cc2fca183b160e0cae61bcd380495934601a7701aef4b175db62fdc9b82cfc. Chain 2 (Bitcoin): anchored in block 960113 (2026-07-29T13:38:16Z), 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/BCAPW2400048.