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 0x429f47ae31e73f621fc7ad3b1f5f3227352fa7a1dc6752233e7af1bfd2886e77. 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/fd13ae36-376f-4d65-955b-e8f5722736ad.json and https://artists.proofprofile.net/proofs/artist/fd13ae36-376f-4d65-955b-e8f5722736ad.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 0x6afcb71d009625bc3bc511e5d6ecd81a0dbb5280cced305827a044c019b7e8f1. 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/USUYG1154040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x346e9d7b1e60a8dc51a71ebf6dde7ff6a3c20c89d08595b0271943dfa9206bd2. Chain 2 (Bitcoin): anchored in block 960222 (2026-07-30T07:48:45Z), 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/USUYG1154036.
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
Ainda Bem Que Eu Segui as Batidas do Meu Coração
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68e7967d1a86294cf82e3fd87e144bbf670a2c2d09e1ff027912092a99f2b983. 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/BRX6F1300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x863740c1e8bcce745426e594c6c7eb4f9b0833664627594224ea922c3fdb7599. 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/BRX6F1300002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa8c1f99613c5102406c42299741a45042d183f54e69ea719994b83d6f68b1b9. 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/BRX6F1300003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea01cfc830ac2fe7c027473b3a2adff6acaedcb8d104d5219fcbe67f13685ee0. 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/BRX6F1300004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf18a478cc9601a58e9298dfafee8a96f3dfa08c71d644a3bc38cdcc41905802e. 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/BRX6F1300005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75df188ec3768ea677df88674507dca7bc475d89bc2091b718352db26d1d5dba. 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/BRX6F1300006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e4a9849230f9673c62046244b742c86c552333e31b93827d2bb7bd4b02a08ed. 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/BRX6F1300007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ab51685bf22b92962eff178d017d97b555fb722010b32cee4a32cf43aec9654. 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/BRX6F1300008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91303e5b67a0f1de21eb3ddc5df60ce0d8950866a3816e4fb33e14bc53c6ccde. 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/BRX6F1300009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bde4ee2a069a879dabb4b274998c11a1e8d1900fd7850e85f3aa341ce92a8c9. 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/BRX6F1300010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1adc73a5f81531d1511d2fedfa2b5b6e9aac90bed5f238f9a94c5c9c9061e841. 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/BRX6F1300011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5a163ba3c370aeb0f34842133c6378c608436eed3c7209ffae04be336fd5e05. 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/BRX6F1300012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bc5202b84ec325046838afe05bf08d37c875428b018d31fc042b5a5abad7075. 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/BRX6F1300015.
Coming Back Down - Beatnick & K-Salaam Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e7917f79c6d7289381ac60a74bd8eed01333735ba6df4cbf466aa45bfdf1ee0. 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/USUM71116317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc622b7702430ccb4b1e7ed385dd013bc387f07bd9f0be3e06063667d6953647a. 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/BRLQ81100046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5959545f2ce7237f34aa3a58c2e19ae97b0927609df42fed6023427e76386d59. 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/BRLQ81100047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72eb5d1cdd3e91d19c1bfd2bfaf193345c8c6703db459d8874eca8b215cbdff3. 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/BRLQ81100048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb8d66c4885047545f3d7a6864f3eeea75b2117d263e464390920c3b8eed5e98. 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/BRLQ81100050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d69625b0ba70214be46cce993b97a39a2bbefd92425a7011b5efb6dea138198. 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/BRLQ81100051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccf99350654c406c47fe9e78e368e2ced8b501c940e9cc7e190ccf14a2e08452. 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/BRLQ81100052.