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 0xdedb63a28bb5206f57b61351fa46cd5b852a12b4bd3793baee4c7ffd21f316b6. 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/8ffc7f37-fee3-436c-a8bf-6800aab97b98.json and https://artists.proofprofile.net/proofs/artist/8ffc7f37-fee3-436c-a8bf-6800aab97b98.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Tempestade Tranquilizante para Desfrutar
Melodias de Relaxamento da Natureza para a Calmaria
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 0x6bc20bc5bf3fd7a9caed25f4234daabc0a954533a546a6064364d02fef8ca228. 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/FR59R2325702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2a3052ef9b4311d4a11530cd46b0de8b2c2ae19a9eb753371b16d3e365577c6. 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/FR59R2325703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d03c1400f804984621cbf07039c85d429600ca365afa7bdbec2b2c3e04de3e2. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T21:59:39Z), 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/QZHN92415804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x991141e8e582bfd11e523090ba2aa4c0f9b4d9eacd215f720e8da38ce2a4b241. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/QZHN92415805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x030b8e989699eb9f1c5f5fec2449ffd479e27c8dd9f729e75d214a5b1ae3c596. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZHN92415806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ff25ed7b1091401a6ad2a00eec9727dd157b6966a4cd4d74bf3c020d55a7c2d. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/QZHN92415807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa042dbaeb8638508d5d715276a1a0815e576266f48eb3825fa144f3b86d9d08. 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/QZHN92415808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b2106a2a4738230139c9fd4f4b012e166f9c23197ceae09a84833c3c76bcd72. 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/QZHN92415809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bc0f4abebbacdc39b1c459f059fd4a6b35f5e6935be6d5db3854a5266368384. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QZHN92415810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47703a95068e4303b9444ac8d0a50e7cac8a6b7cc5fabff9a1b4a09d79024cab. Chain 2 (Bitcoin): anchored in block 958322 (2026-07-16T23:18:53Z), 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/QZHN92415811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4a07252069d640fba836495c2e80e242f37e3e4a23041658d659c953540d2d5. Chain 2 (Bitcoin): anchored in block 958880 (2026-07-20T15:31:01Z), 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/QZHN92415812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5e7eb5757484b76d7f230948e64b39e2ea7288a018a982c89daa91ea44615f8. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZHN92415814.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad2c12d8b8b06d964ec3b82e9cd4e1477b595f5413f51eef636532526429293d. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T13:04:51Z), 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/QZHN92415815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0981e3123b24d4967e8dabdfd4a749c10a8b494f77b8358235bbfc7ccf0087b. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZHN92415816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa22bbeef07db5245c8cf8c8e5e0679092a53fefbc08b4a7930aef531cda5d7dc. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T18:39:10Z), 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/QZHN92415818.
Cântico Verde: O Silêncio Dourado das Folhas na Natureza