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 0x6fa8927b92bb1500c45aa2dbdb3ca91edc2fb9837aac1d66eaa18eb3d332d8c9. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7a1d3b1b-d83a-424c-9072-a61619d9cf00.json and https://artists.proofprofile.net/proofs/artist/7a1d3b1b-d83a-424c-9072-a61619d9cf00.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 0x622a6f56b179dfd95f75ff5c0346b1edaebc3045f5cb4c6b0803b4fd08f07703. Chain 2 (Bitcoin): anchored in block 958041 (2026-07-14T18:13:17Z), 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/QZHZ41941434.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe193a6a36640fb3ca3a3856b6c164940f15eb26ef690b7817f866cd3800ef44a. 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/QZHZ41941435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d2aa2761c8846117da41f9e0ead2cae0418cb05d5420242f562b97b9efecb27. 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/QZHZ41941436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x764ddcb9b5cb9fbf7d2c00b8dd35de0c30255f27ce819141b3d4853f73e08636. 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/QZHZ41941440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a247c84eefdb13a48a691573c19509b6b293416634c3514dfdcd02f004c44be. 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/QZHZ41941441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1da776d741bcb977e14de0b709ca79dd1ff3413cb264a7f93366128976d287cb. 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/QZHZ41941442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bffb74ce6c420218f0382f71249d1c92f6d111978409941c6d5ee624c1fb86e. 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/BRVR11600243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09947b46fb15207c38ecaa4945ad5bf1765008e31420e81e75936a988a0c2499. 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/BRJPA2300025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45567e9dcec90cd3f17a4496c3f29bd487f944eca0b6574c434f7a25986b936c. 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/BRJPA2300026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e3b85cb1d381fdbda7cec2d471772f2e21086238b277c9db7f785ea710dc489. 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/BRJPA2300033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbfee57360c074499d4e9a5fb130027693ff495e3a7f922a344cece3b6104fc1. 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/BXETH2400035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x981a0a16e50b8a7655152db6276aa311218fe8970f716c687827b5b649158032. 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/QMFME1527347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbdb3b04b0f8ca2f03dd12a445fd87ea69e845f3d488d078ab9bb9a2aa665d9d. 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/QMFME1527348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c74830f644f9c511b9b4502707da89e994e76f8dd689fbade9666487b507bb2. 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/QMFME1527349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5873efd576e01bd5fdded1fac6247717794e6d8de359f79485b90c12fbf531e3. 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/QMFME1527351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ff5afdda60acc79c103cf322a4d0ca67eb28362a612908dfabc84defcb2509b. 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/QMFME1527354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b0f1644133e9a064b003d1ae6b4f8ff743a6d42f243071c1f463221e0a60405. 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/QMFME1527357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf108726b436f0c158caf6fcefd107e316fcbaf1413190a50a785a31911b5f704. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/QMFME1527358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec9ca52724675f3ac90e4ef6c04b08f40b0a53d3a35ad3ef414a242a2033f30d. 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/BXETH2300035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46733ec1c3149d2ddb2936d4fc84e789370ea8939e8162f6eec1d94324899700. 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/BRACT1000172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x827c8e7956c46c52c22bafacd49ef4ac20b7c0d30520b51e8986b133a56682ea. 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/BRACT1000178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda0d548a234488c03f1dc1cdb135b1cee2a44f2683d31ab47417fa830a484c4d. 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/BRACT1000182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ae6ec087f17fd50e760a89f43519d1b2100323e43e14df41d4f28369ca838d1. 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/BRVR11200692.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x649b30be03a453d083202de403e9f29f38298babe3676d35133b22a938b008c5. Chain 2 (Bitcoin): anchored in block 959155 (2026-07-22T19:41:18Z), 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/BRVR11200690.
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 0x09c5e60a3836758d95827a8558d51a0ad4bad887c2b7530780de3ed6238e0d45. 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/BRACT0800212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e7db95fbd941a6b72f274bca78e615c95d6fde59296763992d13619ddd2a063. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/BRACT0700770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x140cced715da7d276a848d8c52ceed936fe8003a015873cdea076b3746af9233. 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/BRACT0800494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8921da718fc0dae0bdddedd950d81891d183d8c703456be7c1b773e02c44ded. 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/QZGLS2309678.
Meu Rio Grande, Vol. 1 (Canções Que Exaltam o Pago Gaúcho)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd54f8f41684018ef16074e0ba285830a6736111bfbe93359c78c4c4461619347. 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/BRJPA2500006.
Sonhei Com Você - Eternamente Gildo de Freitas