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 0x7ae63013563e172bb807376cd921f40fc712c25362e3eba0bae684fc5d66219d. 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/44b236d4-9a6a-4d59-bb11-2ac2fd5ee097.json and https://artists.proofprofile.net/proofs/artist/44b236d4-9a6a-4d59-bb11-2ac2fd5ee097.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 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 0xdf0226073e607a35f14cfca4b1db2db4d190ceaeace70d910acd63e52f06d555. 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/BC22C2400041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb716bd57ddb4d4cefb0cef8762a3971b855da36692a5963285338e8c6c07c210. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/BC22C2400030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbac97d0adcd3974f260257d7e6460bc7f4cbbc8d4defe60956613762e9dd0a8. 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/BC22C2400006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe05579f5be89780ef1270fc8f58a0ab3d25f32ccf9821c591f12c3997742744e. 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/BC22C2200127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cfe4cff1acfa24443f632058b9518ca21bdea3baa5e05aa493a31bad4f78f9e. 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/BC22C2300055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdccd680523640bca8590d4cfa536b04da02dbeb2909cf4116f9ac712c836a3b3. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/BC22C2300054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c3e8e9ff8aa7353e947a924ccec3784a11935380a5ed33726b75490f54aa254. 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/BC22C2300030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x144fa47b560e2f51921dd88721b5e07a9889915438cdf828bf9a8ef2f59b9696. 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/BC3PG2305494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf81d4576537e3310fce0d55c0b6ef5867da1b727b20a8cd2cbfa142fc1c5c482. 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/BC3PG2305279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04b197219c6e09ad37ed21d61a0f37f7a6477bd03ef88f0c8c3e150e2b7fbe3c. 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/BC22C2300011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56dab4a82c62820ba02ead6d93dc6d92e5ea21ecbe6c4b45d35e25b7b12f947a. Chain 2 (Bitcoin): anchored in block 960379 (2026-07-31T09:25:34Z), 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/BXKG22300309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d47947b650231f39c9649efdcb70df731367a8ca4408fac897843a8172c5dd4. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/BXKG22300308.
Black Lança (Catucando Gostosinho) [Kof Remix Oficial]
Black Lança (Catucando Gostosinho) - Kof Remix Oficial
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2df135e5896c3acf3f136b54eb15b964793a4e32da51e0341685e05462279237. Chain 2 (Bitcoin): anchored in block 960339 (2026-07-31T03:13:37Z), 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/BKAVO2200010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x785663d5c1c8b018f3d551f915ab7b8d824b715e4998998143f4308c2c10c370. 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/BC22C2200129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee6422c6e0e6276a3287dd49d626e7a2823067ce0049f461922a4d1c019e6857. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/BCFCV2200377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x867e31663404ee76c6a42f26c8972ac04d5f40d2ef15bf02c8034ff71a1e07de. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/BX9LK2200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb54495c8a18415ecf937110a654be40bffa56c9cc87c39034a39f05e9101dea6. 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/BC22C2200044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1943b9358e40b828f2b0ed57c108d44ac26bcb656d30fe1e2295a355f7bd446. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/BCDHP2200111.
Se Envolve na Onda do Berimbau / Escuta o Beat
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71c597ed220bf6bace17792cdd67426ed0264a2b4593c0b7bfee3afd54ab525c. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/BC22C2200016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2196526bee6e32f57e3a18454954928151e1e4e601edc3a474b917ebfa1b1662. Chain 2 (Bitcoin): anchored in block 960111 (2026-07-29T13:21:01Z), 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/BCIH82201204.
Vai Dando Cavalgada Vs Vou Te Botar Sem Dó
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x179142aef7011300b1e538513e11af6250149bf1f319bf33f3093cdd643385fb. Chain 2 (Bitcoin): anchored in block 957064 (2026-07-07T16:43:08Z), 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/BCJBL2100155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ad1affc301c5d6f98804ad87681444d5ff1a31059bfaf207b8fa08282608144. Chain 2 (Bitcoin): anchored in block 960212 (2026-07-30T05:43:45Z), 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/BC22C2100036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4621b6f1dc7c92d4c9d49274f0aa5c7349ee6d749081551f66b6dd0880d49ff9. 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/BC22C2100035.
Hoje Eu Vou Pro Baile Sim, Devo Nada Pra Ninguém
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96d855fa3b1a4c937bf4576d0f4c5665e47a6141fbb89fae9a7411b133b00efd. 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/BC22C2100034.
Peitin Pequeninin e a Traseira Avantajada
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d50711bb50483f69bc2f254b4cc4b936acc053e365e2653d4cb8a271c504c32. 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/BC22C2100026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd62899ca2d77962020d98cc6e78917b7935832495882a05869b8ae0e41bd4ad. 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/BC22C2100030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51cc03f6400bde815b0b9b31bc12490e497fc9c6abfd23889bd20a18217cdec8. 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/BC22C2300004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c5e186bf3ea275a71f4a6f8f483124b15d02f02e6ce454595dfcbe63e8ee044. 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/BC22C2300007.
Faz a Pose Olha o Flash (feat. Dj Serpinha)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2be9d4896aac7e583aed5f0b414eb7c8061c944697110f2e13a122f270644241. 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/QZEQU2106597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf773f194b73f80a941c3c8d14ee92a541a2e9e196396db6fd6112fec67624b4d. Chain 2 (Bitcoin): anchored in block 957067 (2026-07-07T16:54:37Z), 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/BC22C2300077.