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 0x164a601668c9864aca89f8f20af3090955d525cb6ef636f82d339a00dd86b07b. 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/9fa19776-ef67-48a4-bd7e-587f93e357e7.json and https://artists.proofprofile.net/proofs/artist/9fa19776-ef67-48a4-bd7e-587f93e357e7.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 0x9e538f8ce07fe0b0da6d64f3d903034eb5807a9a86366306b7fd1069380deb3d. 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/QZHZ41902266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd30e03c43863e328e1e68d7490db9b5816924187e30d5a4bd425994e6df5da57. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZHZ41902267.
Gineteando um Chamamé / Dobrando os Pelegos
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x252075105504ca624aed501ddb1b4689842f6a52fc491918ffd51c165f8c1977. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/QZHZ41902268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3e03980719ea364dfd2aeb99b09ae4a9041865840fa12efb011633327be1678. 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/QZHZ41902270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17953c60a55199254f62bdfb2a72e8f6cd3931daa76f52975bab1dbbe65cc1ab. 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/QZHZ41902272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x220dd07bc87f96e5a2beadfaaa69cf358191f2db3b37acc036ac9b903958407f. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QZHZ41902273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5de1e827886ccb5c8360dbf8da5912ca7befe03ac2baa14be1f5a378f1a03d46. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QZHZ41902276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdccb990a20f197a812bfc760ff6cdeb1f0e3c19a91e6ccb1c2e8c68816fec299. 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/QZHZ41902269.
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 0xbcaa1394e104c9e4d237fea8c25a0cba7404af76a3938f04033b2c2d24eee2f1. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), 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/QZHZ41902271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9be8f0a1e419f19ec47006a8dd667bc325482c3a3f1f01e87a064a4f92054495. 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/QZHZ41902274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1eda14940178176f60ee67ec68de2784080460a1152f61f7d9d39c800c7f5930. Chain 2 (Bitcoin): anchored in block 960259 (2026-07-30T12:51:24Z), 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/QZHZ41902275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9182c54eae0d6bccd2d6cb56c4fd3d918f958e22f3f7ffcef078fa2dcb24360b. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/BR4MX1300006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf568a03832ef4ef0578f7cddf4a9054b752e96bedcdf32d88f76392dcdcca6cc. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/BR4MX1300008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ce875d49fe6b2ec721282db3c6fcaf6032ce49391e8058b07544ac49e101534. 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/BR4MX1300012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28cb4e010f4326242abc7a59b6609db910c4968826ccc1206baaf9b8631c3877. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/BR4MX1300004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1eb88f2d730a1c2c6dba1382a3338f46d377a1d6a54be11b61b00913b00e55a7. 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/BR4MX1300007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb98d087262cd72f66a56c7dfccb4224c5b5512d742e8fe43e872dbd04dbc0218. 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/BR4MX1300003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c49c891913e3b1ed3dfcee600521723339f2b2efec997cf85b5f7f9b9203145. 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/BR4MX1300005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x196572e3beb5e0daa4efced482f0c8d3ec9140eeafe9457ae2c405c6c344401a. Chain 2 (Bitcoin): anchored in block 960311 (2026-07-30T20:45:02Z), 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/BR4MX1300013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc0f0108db1ac775128b0ea77c9148b28cb89e3da7b38f28105f862daa884bd9. 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/BR4MX1300010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca073ffe31fa5f99c5e19440b6fca7b5892a9da76265ae07dd6b6fac4398b171. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/BR4MX1300011.
Pra um Maula Que Corcoveia (15 Anos) - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1100435dbe530dff6206c0abce14520a0a546120ed7f2f5568e8036cad381e82. 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/BRZQG2400009.
Apartando o Xinaredo - 15 Anos - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43a319bf5c19fb590cfcc80fa375ac51abcf32567177569527dc8dfe75077bd2. 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/BRZQG2400008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39d8b33f175b2a0063c4643990512f92b35026a421f60040ccbfe74a33d8c330. 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/BRZQG2400007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51e135dc005dbe5ee2b2661f1cc3488c55f6b652b6a2a5681521b01d7fe7a05a. 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/BRZQG2400004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4defa08c9ba27ec8a69587e009c3c8699258181f20132cad03b6bdbea05190d8. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/BRZQG2300002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b7861a3533abc94d464696aee7e0779af29afb01820a7a83ac76f367b59f3c1. 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/BRZQG2100012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfec7e7f78efe8f3523645e44190aa445ee5468b72c89a4e02a25863285f25444. 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/BRZQG1900028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x971e567c4c6dbbb193770a1d652493fd4e1250d6e3ef164ff77588ca47a68341. 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/BRZQG1900027.