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 0xa03d316d0ab36d2a38defcdb2282acc2b84e89d073cebae84619646b24ce1b92. 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/b1e50a1a-89ab-445d-bbd5-baa450bec518.json and https://artists.proofprofile.net/proofs/artist/b1e50a1a-89ab-445d-bbd5-baa450bec518.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 0x21703e8c6f822747c82bd1ec17c5200dbaf5586811b3ce2fc15ffd592a247a44. 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/QZHZ51905759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb776c8d496156ababaaecf4a513eb92dbff07b59c336a6a5e22b5e48fe3b5d7. 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/QZHZ51905760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f4c1cc704bb3cd65e781d24d86b753a2296c2b1b57be7c6d534c53043f47e43. 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/QZHZ51905761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6abfb79d55fb060f0b780ab73045f32ccbb7e2beb355cade7f7d11bc17fc115a. 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/QZHZ51905762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbea229cf488e05839da6d7da8dbd2b791a003675505824de6525ce5a8f475e0a. 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/QZHZ51905763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bbf9f64774d3e5b360229567a249689add4cd42eb5ca4ab22518a968afec618. 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/QZHZ51905764.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4778f904b848eeb3dea9a9399a31b1a2369ed425f74c06d1dcc873f03d10429d. 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/QZHZ51905765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b6994840a9c55e1c7063786371e9f2445a1c5b7ffa3390f49906dfe819bf906. 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/QZHZ51905766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0db9dafd0ec25527cf001c7ae41c2188c5d75f8140a7a45ee83259ed3d72d9e7. 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/QZHZ51905767.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x399db1118a09e71aed71aa68401e622c9b674e68213be864f0e4c930888d024f. 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/QZHZ51905768.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x771bdece4d9070e6dd281550d4e0c36f3acdfe8d306a78d1a5c7b85e824e4608. 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/QZHZ51905769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9bb917cb73f7e90cdf7accb0b898d9b957ea6b995b17fb3863d312309deb60d. 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/QZHZ51905770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d8991d8b6352c2f9e0bb19090f075be89b439eff47ba2f552afc56dad982c11. 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/QZHZ51905771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfef2965e8563f8512f22f15931223c0d8ab95652a326dc7282c8739bf8aa4a31. 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/QZHZ51905772.
Enquanto Estiver Vivo Vou Estar Fazendo Isso Aqui
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb571e470152d03515e7c00f1bbe4f460793d256dd58eb14e381cefc8c479ad47. 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/QZHZ51905773.