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 0xe05171d48cdad966fa41323536f156c0b36f808c4d1b04403fd76e72bce25f64. 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/99556906-ee9c-48d5-b242-114cf80f43c9.json and https://artists.proofprofile.net/proofs/artist/99556906-ee9c-48d5-b242-114cf80f43c9.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 0xb955e723c193de78aa1a3b02889b0252503409e6d3f69c1d4014ac04ce548503. 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/BKSAI2400124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83442d919974551e13c756488e1921c6b733df97b6e7e008f5cf20122d79621b. 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/BXG6R2400502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf28f08b1b7c2f1d82247a5efccf4865e26cae1073ef504d421208a94c2ca02d. 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/BXG6R2400113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd6a8206f4499d728a04368d2b1849ac8ccad4272985d8cb886ef8a03ad63333. 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/BXG6R2400411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x726860028a7039107ca96d1eafc78ff26f9eec8addc17403768ab7cf8aebbb1f. 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/BC8182400037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf63a12fa33525781d9d130d5c18d725ba8d26f0de8337a2070486de5588ae752. 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/BC8182400035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e6224a5a1246c0056889786697713b6da0797ca2393cd32192c44852f13177b. 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/BKBSS2400717.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c6cdc1bafb12469606cd517f34d9cbc5233c26dede4113f7723bb115eeebcff. 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/BCSOR2400083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x776591fb727bf587c0e09efed385f9a4225a178267f93144c49ea32d27dea2ae. 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/BC22C2500028.
Melhores Amigos (feat. Nader Mc, MC Du & Hugo CNB Oficial)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02faa4cfca2a8b77ac336ea4ec82ee7346547e06bd2ea3842551347f4801fb2e. 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/BK4DA2455979.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91ef2133371df6135297eb7908f4cbbe7946c29afdc16a058c387f8bd888806f. 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/BXG6R2400601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76862791531bb49ae2efac7385fc652210da6f8288718621313f7fcf9ad68a25. 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/BCSOR2500043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdba318a4494ddae83a439962ff5a8c9da4caffdf928724fbac2218ba117c331c. 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/BXKG22402783.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x472de8d64d95f75398eca13b54bbb7cf2ae64a572481a02e592628f60340e22c. 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/BKJTG2200009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d3f14d5580321b7f695c2ba884ace17eda661e0d6a135882c97a3d131b94d51. 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/BK4DA2502895.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fba6343962173e7f58efe455b721e0f72787a60702cccb3d46bacaedfb39ddb. 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/BK4DA2464396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x238b85bae5ac30e3a3611a8788bab4c9a53826ef5d5718d93b73ae265622a4ab. 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/BK4DA2456532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe03f4255a67306bb56d00f72dd3e320aaf156c86c14a1203b4163891fb82e6c0. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T15:11:21Z), 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/ZZA0V2400285.
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 0x333ae175410ddb26d889ae7b893e94df7594a21bde7c923fa709a4f8e8f62946. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), 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/BXG6R2400735.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x755dcfe08f4336c37c85e3a6481c8224cc0a49989b10b05ada41e2e99f941f6a. Chain 2 (Bitcoin): anchored in block 960259 (2026-07-30T12:51:24Z), 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/BXG6R2400705.