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 0x24010321b48abd0703db5f74582e583d5b201fc6b25a56e13eb91f3ab1927f35. Chain 2 (Bitcoin): anchored in block 953654 (2026-06-14T16:26:51Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4a7e6e71-18e9-43c5-b86d-380082bcdb0c.json and https://artists.proofprofile.net/proofs/artist/4a7e6e71-18e9-43c5-b86d-380082bcdb0c.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 0xf1ccd89beafa852647f62209f7c276f69d60a1a1497a1a2fb77065822ee473b5. 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/BRUPM1200012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ae57b9c65d266075a2f4dbc200986f2cde3f290b6a296857ab47e397a398ebf. 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/BRPOU2000096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a435ea1f9da6674634d99ada824e8936823bedba69f4590e0f25ba25bfcfd77. 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/BRWWP0300022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c7bfd605119c99ab3ebe1a82ccded918499dc52c9cb0871987c5fb5177ce5da. 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/BCDO32400004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbadb09731ef5db736d6f5c793519ca836ba2efdf72c99ccc519a7f55af3218b5. 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/BKAC82300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2976b38d99f1c24e67f681d9715a823920871fefa74634004d8a4307b0c012f. 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/QZXLZ2315257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6707294056f56f225c5ed602a804f9507471eb8c9a60c31d6b22c48901925956. 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/BCDO32100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56294d1593f31252970e4371039898e9446af84cd402d263f9a0d9e82a436dde. 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/BCDO32000002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb268723150083616e5b29715d58cd5b391abb1a78073e569e1d3ed32f5be674f. 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/BRUPM0800030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41460d4e26ef465a78075aa9619c69f9b3a67762b7c921bdb0cc2eec67bb1213. 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/BRUPM0800032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0a20d3b709870033ff8a80dc3f90691c8ddfc99f6ba20abcdedaa992885f2c8. 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/BKAC82300004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbadb09731ef5db736d6f5c793519ca836ba2efdf72c99ccc519a7f55af3218b5. 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/BKAC82300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bf225d8f979226639b52ec4056b9d6539a6a22cf296855e3cd7c9908a0e78d9. 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/BKAC82300008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62143d01e4a3e6694b4c5b838af210119716d5333266a1101eb86526dd665178. 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/BKAC82300002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82ba7e3900666a0d2c3d45f399a22e0875e89b17d706b4c154a3107d2600699b. 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/BKAC82300009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00b49dd6874e530a866a07fd5f96a6eee582e8a8365112d945169c588f9c96a3. 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/BKAC82300005.
Bicho de Pé Convida Giana Viscardi e Danilo Moraes
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa52a1426fae85e348f276f37d8f34063e67e6e14ca7d320e75f1d4c540918f15. 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/BXD1X1900027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cece9ff62534ed28a86012db4b3756f8a178091b6c61d34b239466f9f968ff8. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/BXD1X1900029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d3cc5ab0d9ff25ced3b97b86f1bc7cd457ebd530d485e0d76713b49b971a656. 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/BX0822300005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5f1c8222c722e1c6e8d62ca333f8f5abc180b9b583b5218dfc12cd308d38117. 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/BCBMI2000002.