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 0xca0e7f0cdc8b533a7d2c6d86d8e4b07273b259727e4f3ffa1ced4544c20f5c23. 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/bd198de1-a011-4dc2-8c55-9b88cfe50138.json and https://artists.proofprofile.net/proofs/artist/bd198de1-a011-4dc2-8c55-9b88cfe50138.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Intro (Herói Desconhecido) (Instrumental)
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 0x68f729bdddcbb2838b91aae1572df03e4c3acc5c37232cf35605bc16118c6502. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/BCY2Q2300002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda5737f047eb172ce8cf91cb8ecd39f51141d3600f168875ab90ccaae444f96a. 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/BCY2Q2300003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6b01e57b05ec74f5a36c85d33b7bfe4ec6bfda840d4747a7ed2f0a92dbe12ad. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/BCY2Q2300004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e6ee489e07dc56c6de430f9de743a214e67e402ffb000d17ad4fa254fd9147b. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), 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/BCY2Q2300005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba078e8da817fc6098f225e086ce7c22e1badd70c5dba8493c7e49362e0e4e41. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/BCY2Q2300006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3852e7723fefe25c4f7e08114240f55c0a6211674653728ff05da3c6fad6f94. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/BCY2Q2300007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b9dc13875eae4b6b773c2d5e14c77aa2363972ccab77ea3a3ce9d48007f0404. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/QZTVM2307029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dcaecf176167a6ecf3eb089b6f40db56b0d18a6d39c49c237bcf79074cdd02f. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/BCY2Q2300012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cc9dd804a6ff2096ae0e7dadde76d75360f31d958cab9dbd7fe428f1d529d92. 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/BCY2Q2300015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcba48094fad945ff510b5d404bc9ca71b394136441fd2ea1f02c052b0b3409b3. Chain 2 (Bitcoin): anchored in block 960384 (2026-07-31T09:54:03Z), 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/BCY2Q2300018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56131a4df8e0d346d2471890d8cc4be74183fe4e3bfbdf0a9f1a5a54eafb6d6e. 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/BCY2Q2300020.
Talvez Eu Tenha Sorte/ Agredecimentos (Instrumental)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x962514c119f7d16d92676ce018901b461886deb2cdd19b014350ee5d1f2d8651. 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/BCY2Q2300021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b01bbd0d1da2e1ff2861b111cad06844b7639fddc48303da6351fe51e9cf39e. 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/BCY2Q2200017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60f31b7fa2f544c1f057fd8d7fb975a60288a0bac8c160ec8ac4072f69e8c349. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/BCY2Q2200018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07acb317047e3a2339d53c1e13412074613674d168203ef7c6f2c7366c408b00. 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/BCY2Q2200019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2bc4dab64ca86bed4a76df94df9a53dd714e9bc4663ebf89536e4942cd7b2c0. 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/BCY2Q2200014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd587cb93c21fc07c83e79126abadaa931c1a2da30f95ce3315f715fe70bec7db. 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/BCY2Q2200020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5509a7b87b176c90316fb012f27c0079733556af5273f2ec50858d8f416a29b1. 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/BCY2Q2200016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42d3cfd2595c046b62488551c19df06b0c54edd83af53f37a8d6b96f8b94b84d. 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/BCY2Q2200021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a2fe9dbe600d4ed84eafcb7fbf380fda89201acc479214b48ecb94d9201f372. 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/BCY2Q2200022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3d20bae66f0b3ba9d1289108be63d35c76975e59edcbb56390c17d834ecf2e2. 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/BCY2Q2200023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa00ca223bec198524aacfb6b365726e86ee42b4750a3cd6e689683b1b0f4cbaf. 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/BCY2Q2200024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x702eb12d134e61bba5be1e32d5d5123ea7d1ed2cb076128f409674143b70a984. 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/BCY2Q2200025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48f7ab925f5533ec3d3229c8167d6aa2bf09c7048f9398f7fd78371226385bc2. 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/BCY2Q2200026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32e4c9fec3e7f3a1c7825c7265bd8e6fcf8218ff316b02ae58edc2125307ae9f. 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/BCY2Q2200027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb0986fcd1a4fcddfd15544d8d7c273df2d68211068054622dd27375358fe8b8. 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/BCY2Q2200028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x074b49686b4639e750f7348efa894ce4565d3b3af234f7fa48ef2d453f55ee1d. Chain 2 (Bitcoin): anchored in block 957043 (2026-07-07T13:52:39Z), 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/BCY2Q2200029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1a651f7750f1249be732cedc16b00ed0ef400e394140a7874d7a8d9b475b38b. 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/BCY2Q2200030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4eccc30ab7931d81c975ba18aad52e890ff5357f8b9fce9674fffd36444a0540. 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/BCY2Q2200031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5bc0d9ed5d10ad48a1f30b35be3a7c1fadf5e916732fac2563d26906c4cc236. 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/BCY2Q2200032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdeca1b21be790f7c2445d7a231f715880f6d0dbafbba17c0e6caba4ac41794a5. 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/BCY2Q2200033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7649579b71b62c57c145b115ba2f6574061bec1eb1e250fc9f3887e333f7cd1. 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/BCY2Q2200034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8079823e8473c90580b88f3b6b40249043936a560147370ab4ed408c89da9c59. 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/BCY2Q2400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x225f707836bbbf8c4aa74412adae06b848633e2f0270f1229490d345fa3b5b05. 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/BCY2Q2300022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2bc4dab64ca86bed4a76df94df9a53dd714e9bc4663ebf89536e4942cd7b2c0. 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/BCY2Q2200014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd0d7b3b4db720423784c13810655180d96b2a035511b3671f8d677945b3d28a. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/QZ5AB2016615.