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 0xc7ef9ac8bb9284c9d40694b48ad5e066564aa304bffaa82d69c813dd9954d7e3. Chain 2 (Bitcoin): anchored in block 953709 (2026-06-14T23:31:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7e90277a-47dc-4709-90ab-a604bca1bc0d.json and https://artists.proofprofile.net/proofs/artist/7e90277a-47dc-4709-90ab-a604bca1bc0d.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 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 0x9584d1b6ad9be8e28b67a4ecc3df29781786d5b53b8abdf5d7784d56fec40264. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/BRGUZ0600015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc23d72ee3c2540bb04329a0ffd71492d01c6fe25fea13c817d3f2320aeb8cf31. 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/BRGUZ0600016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab61c67776917f08e0ab1f23a4c9845d604f703cce8063c4d719f32448918ec4. 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/BRGUZ0600017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8c7ef1f41abdafd428415a8fd25b0e35e2061ca8e571f6aa9a5870e55e6489e. 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/BRGUZ0600018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc934b57e5c2c647c3634aa4749a4dd9cf8454d3677774336ac9e0bdc01aa6106. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/BRGUZ0600019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bbfb55231a34326c7562f113c45eee5f751d6fd98e074b549122807548d10fd. 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/BRGUZ0600020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe15701273b628a4c07ef06fecc2910d24b5d86b9279d1e13b4234adbe9386e07. 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/BRGUZ0600021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0cef8e2977effe78c7e54bd24b8fc97206fd21c9f0f91a7b4d2dcd2751980e3. 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/BRGUZ0600022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe49b1fe63dab6b196a8b77c5174c48dfcaed7a1c768736a4db398f918b95ee5e. 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/BRGUZ0600023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x445347577bdb56e02ecbcf83d2336943b157f22e719227dd356fdc0eca14d363. 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/BRGUZ0600024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02cb14a177c8cdf50313685e06fa71b763c1f10ced907c02aeac8ef8ff6dcc7a. 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/BRGUZ0600025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63e599e61f397459d46b57f1477da398814f6a2b382cc0f0d7fcc12fd852d771. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/BRGUZ0400007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60186e77507a97b43595ca954593db54b40019ff56bd66c7fdd1d6c89297188d. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/BRGUZ0400008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b6d6cbdee941ff460b6fdce533177333fdb96703e5d3e9cd9b034644cb1ab73. 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/BRGUZ0400009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fceac0174d81a0d556508a675f79dc235cc9e09688fd1ba72ee5edc4c7ccaeb. 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/BRGUZ0400010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61d88fba3ca7dc40f158a24adb81453145dae233ab4d7aa37b5132f79267e720. 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/BRGUZ0400011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62f9434f5b7241e336dda79dfbbc7d93781a16165d862922a0646594682e3038. 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/BRGUZ0400013.
O Erro do Resultado É o Erro da Soma das Parcelas
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbd6cb2456f612ea941c2bfe68b7028329b3565d12aa7979c555c9df85a45256. 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/BRGUZ0400014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5c2b94e07a667340c2d7c37a99c09f9c7d77bc0119a3bbb670e2816402ffeb8. Chain 2 (Bitcoin): anchored in block 960463 (2026-07-31T20:42:35Z), 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/BRGUZ0400015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64c039717c080e809811870b2d256c9227bf87800fbf7f019c538ee73fbb7e96. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/BRGUZ0400016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5791da06d14edfa8869e9dd8524e8ad0d4f5176737d484a13e3bd638110a0f90. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/BRGUZ0400018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce7ec629fbc8d8c4537046d118cb47d7bdd30e144fcc00ae0ffdac1c19cc8d53. 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/BRGUZ0400019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ff0cc2490355bbf1df2cb254fccc8473f06a1664dea6a3d864f47a25afc299c. 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/QZHZ32041781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf2730fcce9e3e3dffbd7d353971277b888f6ffa4ba44b3ecf46b93f06993757. 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/BRGUZ0800011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ea77b1bdd5c770a54b84327aded705c21448ae07040f15d4a492cec6ea45a9c. 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/BRGUZ0800012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42f8c4b843a4eba2d98843af06d0b11d41612e5a857bce9d3a9307a8e9c4eb33. 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/BRGUZ0800015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f82b308d6c69210262a2c99dd82514de27353675748cb09aeb7b77cf5178c3f. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/BRGUZ0800016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf3a599949ebd3d8cd5573b7153e1de976d84a2e2381b8d3cc6e1dd919651ce9. 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/BRGUZ0800001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6192ef33a3268d40ee2ee956190aaf46d1fc0b2b84802d5debbbccd6ad3a3e5f. 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/BRGUZ0800003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb97c722010b2ce1a762235ee9c2da5ec6fce4e69a66e17971f5638ca489bf06c. 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/QZHZ32041783.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa9bd5eeed6420ef960fb5fe5da96f50d70c504f7759b1e13c79875efae07bf1. Chain 2 (Bitcoin): anchored in block 960506 (2026-08-01T03:50:58Z), 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/QZHZ32041784.