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 0x714e1fd1105b8adaf9a10120a9d928176cdf2e1e2fc51204e3049e2fc6b398c0. 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/a922f445-b4b0-4c46-8f53-f8868f5af430.json and https://artists.proofprofile.net/proofs/artist/a922f445-b4b0-4c46-8f53-f8868f5af430.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
EU BEM QUE TE AVISEI - TU EMPINOU ELE PEI
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 0x946b94f27e9b6dcbe229f3e46690fd5f8936180927eac4614b6463785af5ab60. 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/BC1U32200031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7f8038753280b2235d559919ddfaa2357c5ce40eba9d759a093974bf5044a3c. 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/BX7272200195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4772f8443f57d84ff806a93352c067c1f8952b5e61958cc8f03bdcf1aac65c8b. 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/QZ5AB2495703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x683de5ca6b496ad2ad8c851774d85574e4ac77122711fcf0bfb2b0aabfe67ded. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/QZMZ92411029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29a064318121d3e7cf974a3d532cca3d973f3d27fea70e87cf9d18acce478aac. Chain 2 (Bitcoin): anchored in block 960404 (2026-07-31T13:06:57Z), 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/QZMZ92411008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7acbdf03ab44084a8d7d6f8528e204645156ad529a2c7cd628944fe03a28b47e. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/QZW9L2367924.
Ficar Com Ex Pode o Que Não Pode É Voltar
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01623ed29640ae7ed5adb1e988f6b5435679436760e8f7c33c093d7a772248c6. 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/BCKZZ2330102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce5880e7bee0f489888056e3a399098e1d8ebd8846dc2b7cd0624655dab12127. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/BC5R32300165.
Balançando Esse Ombrinho, Fazendo Coraçãozinho
Cancela a Bebida Dele, Bebe e da Trabalho
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6380988294e4d52905413c2fd63b4926889985ac953b35ce6ffdc33d3276f320. 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/BX7272300385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa70cd798c0e0b033c9edf1a9de891a51610ca68207c909442b80d07176a0d4f6. 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/BX3SG2300112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e73f007e8cbf89b3b89d6b3afcf6be0f9ef550cdb8897f05c5b27095f60d4ed. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/BXKG22301242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe6f7218b4b59437f04a4275d917e73f50d4b1279b715ec8a9fc5383c05ce03b. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/BX3SG2300088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01ed65031b11f86922c2022e1f4afb40d13ca0a55af4a526b5847746d33fb7e6. 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/BX3SG2300058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16d6494c6a4bcd1a2504699bf3fcc91766a0e7c6449a3237b9afbb86a4e7c6d2. 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/QZGLS2365674.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9b68efd6a0014e07fb7fad7941e7c8b3c4ca5bdf29d272615cdb17077b95b04. 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/BC1U32200600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59e8b2126762e722bdf56f48391542a52f2682e6ef469418a76f14b549c07df0. 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/BX3SG2300048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb84d1ec1631e261690ae1298a90503c4fb9edaf2e992b37549da33410d691631. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/BX7272300058.
Na Aula da Putaria Eu Estou Me Dedicando
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14cdc59f89be1ca2616c4a038aa8c038af19940351e05ea775d28fa94708a7a0. 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/QZW9N2261547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e1ce336c6ec19ef707ad597138c514759a4a8d719371d059de4235a581f13aa. 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/BCIH82203408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f7303a8a6250448d70e700a4d619895e36ddbbb9d86b42bff5163144653ef12. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/BK4DA2430101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b5e874565785f026ede0c73d716515fbbb45d716a06ec33b0f045a7cb744a1d. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), 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/BK4DA2426647.