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 0x13d014a5db4b18d21bad450fdafadb8eb50c109e4ad070c7d8b125e89d6c6c0d. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c9c64ac4-7d3f-4359-9a91-bc207ebbf30a.json and https://artists.proofprofile.net/proofs/artist/c9c64ac4-7d3f-4359-9a91-bc207ebbf30a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
O Que Se Leva Da Vida É A Vida Que Se Leva
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 0x2b5624536e09ad028a423252b98d432c553e3e968a4088e682a0fffc08af7393. 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/BRMSU0800155.
O Que Se Leva Da Vida É Vida Que Se Leva
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71ab589c6acba73072df054727c7fcab4f63446d4026d0fa6f56fe8985fcf125. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/BRUV70900197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86fcdb1c6fc09e3813d33504138019887ad1c570d5ac8cbde4ab742131ae9c04. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/BRKGM1300024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54f4d78f76c2932ed34942cca10d64a63f3d5e4b9b404396be30abd75f3a023a. Chain 2 (Bitcoin): anchored in block 957026 (2026-07-07T11:02:43Z), 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/US7VG1833933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3609b3ac2e7c5a6a62f1ad1c4a8dbf9281a5f6655164d9a83b628a22b407fd3e. 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/QZHZ31997933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x834b8ea83fa911e39b76e03068df882f25fe47f7475c3f9d9afb4b5e21711410. 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/BRUM72300851.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b9f6850960f1451cc32d9b60072522e4e31ce32bef545455bf81254cb93a8d9. 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/BRUM72300849.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a54cedfad41cc0ee8915ddc4e41758088477d85545ae15fda7817182c7ac3d4. 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/BRUM71100881.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x066adf06e74a6a51cc64377985c53e4a7ff616b9596c7e00e200f6a5c59e2c1d. 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/BRUM71002318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbde00799885684fb1565f8abaaabf62774d3472badeca1d5989a3be3407d926. 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/BRMSU0800128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa47dbc7977e85ff25fe589f562ed010696017eeee1f741a2d0ccf9250be7c0e0. 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/BRMSU0800129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0615b3c4019aa9baa77992d223b8bba6bd2a16227079e3550623c65c191b7bb2. 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/BRKGM1300004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec6a442eb01f384ca45fd611541df1600edc186f339a41890ecf888b30db5b0f. 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/QZGLM1999395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe18159b8fa26643e6a5e652a55ecd61389f10e8f5edd4197d5a14fc5192283db. 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/BRDA01300012.
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