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 0x999275a081726c9c9b33602eab7ed310a2b5935ce4ee4877924d7cf40522c1ab. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/54552a7e-44d4-41fa-accb-f2ab967e5a8c.json and https://artists.proofprofile.net/proofs/artist/54552a7e-44d4-41fa-accb-f2ab967e5a8c.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 0x1dc6c6414d29c3b1e0af852b3895e997c91fadd2cae0fcb987ea12cabb3ad16e. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QM4TX1885412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9484d1b9f17771eb596d9f3f6f206fb9fb44b2a88c70f766957645219cd84313. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/QM4TX1885414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6a26f0947d8d3fd4936d370d8c945a0ae4183d7b58c547cd259b7ffb081a5b7. Chain 2 (Bitcoin): anchored in block 957558 (2026-07-11T11:36:38Z), 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/QM4TX1885418.
Latviešu Šūpuļdziesmas. Tavas dzīves ievārījums.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x598635f686b8646564d012f33b92142ac7116641b662e1009615d360dad98c30. 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/USA561408465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54d0c2b3c38c03cffc884a8c5da04d7c0f2f465782cdd044b50ae89708789162. 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/LVC100500050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6ff3f5623971937345b96896d3fe96317d0af9aae6df449ac683be05b065553. 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/QM7281496553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbab46e41dab9b79b21bf5b414382266bad1a47365b8ea7235319d71882228eb0. 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/LVC761300094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d8a9e1978c730524414fe60a340afeac4b37c11682f26e684383d4fd506d301. 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/LVA109600113.
Dziesmas no kinofilmas "Vajadzīga Soliste"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe286bcd779ba23e4e32d04be371cb6b62c18267212a354d1f3dea231ba73de8a. 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/LVC761400317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d49547b75134923b85ce4cd01e09a5f9d56ea3e1b62b508d39c1c9b73678a1b. 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/LVC761400351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d232e38da1bf6fc3a012721661a35f03a1d4b7c8e4eb94d2c69eecdd729cdd3. 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/LVC761300113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35404987e063aca297d319bba26f450a9ce8184ddfb304f57f26749bc3b4c843. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/LVA051000036.
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 0x42751a3624b4db70d75b65ae9382a610fdb87e163872c84e712714decb17e4b6. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/LVC100800013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a37fe03a58b7a1ba0659c48a997fb17a15e03cd1b3b9831039ffe43dff36472. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/LVC761300063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x507de41b6a30383c43e1785c03af01e6bb579e74b194e7d36a2dbb99d0bba43f. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/LVC761300072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa747b05aba61d553c03d903e30bce3c653c995c9e09b0d9120f5c6457fc3197d. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/LVA100600357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3342d502ac7a5dc87aeb37df26b4780c1ac095ad17827a3349ed966a9b43de95. Chain 2 (Bitcoin): anchored in block 960179 (2026-07-30T00:39:11Z), 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/LVA109600112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a3be089b33f25235456089daee8ebf3f53b03d0739e286dd585e79a42588f31. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/LVA109600114.