{"copyright_id":"0x3bc36e7e34e715b3e5d7b5209e8c4d74c3b4228eeb9d6565a9586b0838acb12e","name":"Sonho Encantado de Cordel O Musical","registered_at":"2026-06-15T07:19:44Z","symbol":"NIM0722995","token_address":"0xb5bc1454efa25ddfb6a7efda186402b833a80ec0","type":"artist","uuid":"ffaf7944-d1b1-40ce-be2a-7adfdf350f4a"}
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 0x3bc36e7e34e715b3e5d7b5209e8c4d74c3b4228eeb9d6565a9586b0838acb12e. Chain 2 (Bitcoin): anchored in block 953842 (2026-06-15T22:22:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ffaf7944-d1b1-40ce-be2a-7adfdf350f4a.json and https://artists.proofprofile.net/proofs/artist/ffaf7944-d1b1-40ce-be2a-7adfdf350f4a.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 0x4f90dcbf31a21dcfa63bbfc757fc77ec820027508758d863a0fd954fe72700b3. 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/QZW9K2479954.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadbe30330fe3477c01280a91b7db19cf1690e31b41affd691db6af006cb755aa. Chain 2 (Bitcoin): anchored in block 958582 (2026-07-18T16:47:25Z), 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/QZW9K2479955.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf425c33fa8e1ee7b63e5cddcb04093be08dd50fcdb01fe399632947b797f6070. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/QZW9K2479956.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95297ac95b2e7a505872307436b97fc63d0ee77583852a351d02954e65e1e71c. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QZW9K2479957.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6fe149dc142959650ade22e812f4faad662e532c6e802e006afe79c4afdca26. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QZW9K2479958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c2fa63ae0e926737b4abb39553f7c4c964353211389582e410c72a4ab1595cb. 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/QZW9K2479959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e268513c9a633a55ccb473f5c1f04dabb18cd14ad8996244754c3d55b8ffbf9. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/QZW9K2479960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45a3b87ca5bbeb3bab2bb04902225c08ad308e37afdc1ac08430deb9467a40f8. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZW9K2479961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1c3338fc951ae457e82051fd6716940796643595f7e6fbf3159731644c08a89. Chain 2 (Bitcoin): anchored in block 957775 (2026-07-13T00:04:23Z), 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/QZW9K2479962.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fd01ce32b134c831ef6a9f67da11eb938319ea333b9812bf93f834335a7768e. 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/QZW9K2479963.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacbf2da8ff1d310d7f3d0c836ad90813c1a2c1a8ec18bc57e384487386d31e08. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T21:03:13Z), 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/QZW9K2479964.