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 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 0x9eed579c7cfaae1ec9d7000834e81815c1c41842a177b4ce55c86eecdb692aaf. 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/05129f57-fa02-4215-bb5f-46d75964ffed.json and https://artists.proofprofile.net/proofs/artist/05129f57-fa02-4215-bb5f-46d75964ffed.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
O Que Te Faz Ir pra Outro Planeta? - Ao Vivo
O Amor, o Perdão e a Tecnologia Irão nos Levar para Outro Planeta (Ao Vivo em Belém)
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 0xd9a6014133bcf47cbdd757e906901956c2f89954942d5eaaaea54fc0581ceed7. 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/BCFCX2400004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef24a0f6a9e7a307102656cdb46731075903b66dd0f893175c8528ffa4f6b63b. 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/BCFCX2400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x315183dbadd23e493933ec258648876701a9b9bfbbe80cee0f07e563f02e215b. 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/BCFCX2400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d40b9a9cbc714850040305f54efa7c132c8f46e90e9aa215aac30d4671009c7. 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/BCFCX2400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46db3c89a092719d5aff74cdb5f3786ee98d748af85237ce333be82f7a428231. 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/BCFCX2400005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe53bc766238495dcb816043e3c677668836b91e13d242736dfb9b17c7d2dd729. 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/BCFCX2400006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6374eeb8170745db076ed5c767112f7ec3c12c70b95cce336b56b9165f676011. 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/BCFCX2400011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x393480d213584014801ebabef56f84b4df19f98f405075b48c1b1e0926b1ad0e. 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/BCFCX2400007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bb941e2fff6bc47d3f384ae0346ede4b54409c67ad802ae564a94ea986bd00b. 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/BCFCX2400008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3910372c375d96d62fe26aaa1a46bb9512d583d48bcd859e86cf6d30fefc87f3. 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/BCFCX2400010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64186cfd6d99c32348ff35ce550592b8d7072f1052ab15659a3b9694bc83259d. 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/BCFCX2400012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac1d1335992e92fa7f32bcdd63724b53918ba9a659379315de6676ab6c3d902f. 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/BCFCX2400013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe38608122e34bf889b3a615a9f9e9ced66a0875500de250b07a3b6b1cb904cf9. 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/BCFCX2400009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x573131f4cdb61dcca8f3ae6ae1da066239e8a28b19378079843bde437f5faa7e. 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/BC2PM2300004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa38d832cd144d21b5b1e5f6cb841c5d2f937ccb165b07d607e27eb0c1fb9db79. 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/QZW9K2419610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x072432678c8f6372b62ee509878c9b17034200487c74fa3827e93eecbb30c724. 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/QZW9K2419611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72ed251e6520b094a2892bbe2acbf0e64327c3afba59ef5831c45bf5510821e6. 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/QZW9K2419615.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1f2a466c5f72b12857d67c5da9d929f39100f2748ab3b87a7035e18f7f072bd. 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/QZW9K2419616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09eac4b4cd7c8d5ac717a913461fdcdcd550439b97e52f723188d5b0a65f2d2e. 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/BCFCX2400015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x796ecaff0285554f830e67f22bd4928c693b59f91dc8b2735137f6507702f3ff. 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/BCFCX2400016.