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 0x409efc7f72c30be3477584a1a14accb661ce8a7ae5d4525e1b740ae751de5a0b. 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/e01b6dda-16a8-48dd-9cbb-357864514721.json and https://artists.proofprofile.net/proofs/artist/e01b6dda-16a8-48dd-9cbb-357864514721.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Tudo Te Dou (Ao Vivo no Festival Rootstock)
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 0x91aa89399b625302121265114cb33854d56f029c3f73476635073853d221ab40. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/BCIVW2100035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0a9e8fcda18cf6f65f3dcf6d2da9cea07e8abc79fed255f9fd982d8bd95953b. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/BRGP71400005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a188bfa6221b87cb2e18d644e0e2b75e425b93ceebc2032898a349ce31fade6. Chain 2 (Bitcoin): anchored in block 957055 (2026-07-07T15:12:44Z), 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/QMDA71536056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b50ff58231793f5cc4c3855fbebb498def471da6a0a640ab60e835cda7067c5. 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/QMDA71536057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69c29f0e029358d53be0082ba85ffb4a1d91fee2ea1c016aefdd9be104b24993. 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/QMDA71536058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x799c2595d906d2dabaa1ace08c7674cffd706ba5b0d89fe66e9908f5f49ff96b. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QMDA71536059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x115ee6c71e5773054a45d487a99d7ca2205d249c3b62a9160eec281ece7a81c5. 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/QMDA71536060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91a0588706e02e3d75d43bed3107ec8fd14a0eb0faf9c6ce7c051e05dd86fd8d. 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/QMDA71536061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x743983e6053d8512c550ea67557428eb6419573ed7542841f50e1a16187357dd. Chain 2 (Bitcoin): anchored in block 960362 (2026-07-31T06:58:00Z), 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/QMDA71536062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb27197c4a095ca744611e74ec618564c720ff2de456f1be8af527aea34066ad5. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/QMDA71536063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ba84ec3480d48cbcabb1a5427f30dd912b3607d8f2f630eaf9da9200d897e8d. Chain 2 (Bitcoin): anchored in block 960106 (2026-07-29T12:41:21Z), 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/QMDA71536065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x870ce2c95c72e60d77890aac2e7395b4f1460822127b9a42043cd9abe1227f6f. 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/QMDA71536066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x040d316c8e28222f92a2f9832134ab74f2ff473412493b1065467bf44e9c3214. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T15:07:00Z), 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/US7VG1753508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f9ddf867e4cdeab0102825064639550b7f1f1b0c737c7703512b26ecf0ca1aa. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/BR75X1700002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c0660ab9fef25d3f609c7ea0cb88afddfd7c0e108eed74453eb22f9699fcda6. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/BR75X1700009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4da6443920e23475c4b3d774afc469649564c3243070a7d8491143d0273f4494. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/BR75X1700010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02934071488811289835b3010bf93a1d9fe4edc59df04a2a446c44d962420658. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/BR75X1700012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x449e153f80514543fc62a5e08a828743b86ff946fb8b9f5297f37c45abdf9bc9. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/BR75X1700013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6a404ca609eb553542f0d462768af066bcc70a472ac140100ee3bb0e958c7ad. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T09:14:08Z), 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/BR75X1700014.
Mestrinho no Estúdio Showlivre (Ao Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8153968c51bf27dd1639f5c9ec800cfe95937cb74b603f8443f579bc52200a4. Chain 2 (Bitcoin): anchored in block 957867 (2026-07-13T14:55:20Z), 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/BXSSW1701990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29e267e414fb75f2a13ebee03d0b926fae217f0f894fd9abfbe0c8fb2ad44c44. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/BRAPI1900116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc095fa9555c8ede61f38c06a699e5d642a4af4af181efe66eb67b7aa4eee0c6d. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/BRAPI1900117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d4da58f0ae70df9a079db1f7764b7d73d5267db58145ebc3caa230c3374dd52. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/BRAPI2100052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49ac1c568b96278011b4570bf8de225bbf12a99ca6a8e0410277492f7bf7417d. Chain 2 (Bitcoin): anchored in block 958873 (2026-07-20T11:48:10Z), 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/BRAPI2100016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2916aad76be7ffd35f2d67ac2f2d5ccf4b35a73124a21ee5db43c8d3933e94e2. 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/BRWQ61500006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b011908d8b8740c6a4954e70192c640134de39bebead2838c4b75bdea9942f5. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/BX7O92200004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1dbf37a81c0a64bc438725a49b7ccf02ca1743c9e609f96aea9f381a50c831d. 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/BX3TU2100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48b1feb70bbaf8377e3bb21f2e7f5ce9b4daa0bf76b886e7c455f86e1b98f042. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/BRD9I1800029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b7e405370b08589fa129b3d8b380aaa1b0df20f5c801f3771c2a910bd42e1cf. 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/BRD9I1800009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1dbf37a81c0a64bc438725a49b7ccf02ca1743c9e609f96aea9f381a50c831d. Chain 2 (Bitcoin): anchored in block 960111 (2026-07-29T13:21:01Z), 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/BX3TU2100001.