1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x6b93efc2a278e07e4a0e6a7ddc44147da2d834f3a6a34fedfc470c12422ee74a. Chain 2 (Bitcoin): anchored in block 953773 (2026-06-15T10:40:45Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c5148a57-5377-4a38-afb6-70200974b92d.json and https://artists.proofprofile.net/proofs/artist/c5148a57-5377-4a38-afb6-70200974b92d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Miks Dukurs (Live at The Art Ranch Dukuri, 22/10/22)
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 → block OTSBitcoinBlock must exist at that height 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 0xe3cc35b622da55b7987e30b30fdc28d7d797de2fca6c8060fc6e66d767c8c96b. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/CACWV2114868.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f94d318cd570969443c2581a0f046585e2164b2989343c6fa20e621a0279253. 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/CACWV2114864.
Last Concert of 2021 (Live at The Art Ranch Dukuri, 9/10/2021) Pt.2
Shallow (Live at the Art Ranch Dukuri, 9/10/2021) Pt.2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaee5690795f680870f17e3d3459dca84ae6422edfc14b0e5611a6a7e6f00681. 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/CACWV2111597.
Last Concert Of 2021 (Live at The Art Ranch Dukuri, 9/10/2021) Pt.1
Last Concert of 2021 (Live at The Art Ranch Dukuri, 9/10/2021) Pt.3
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd55b2eb239188d7a08464802192db2c500fb7b740b95826848d9a12d34b6584. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/LVD171300010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x469ddb5aa5fcd74b0a22a1a5c255d6ec738176a16a4f2c99f561e0e92d61bffc. 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/LVD171300012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9843c31bb02dc959ba4b61c1297f68ce77872be3ac4936e009cd3b97bd1fdde2. 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/CALVP2457764.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2b30360b92e462003d42515ba6b706d0c10abd604581eb43acca0dccd29d785. 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/CAENV2404549.
Tev (Live at The Art Ranch Dukuri, 13/10/2023)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x160c7c58010145415f8990f3dee4485ba018129447ded4c65d6ad0adfa1996e1. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/CAGOO2336546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0015487cf35ee05faf5843f095a01cc50e3c4214faaf18b3be9c1be702f443d. 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/CAENV2359027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x699aaa1e8cacea028f61b9d512b5be76e5cf4e24421bb9246b52dc658124e400. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/CAHQJ2396423.
Creep (Live at One One Riga, 30/12/2022)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41c3c8009495f194a3cc00e848d5d02176234077b283da504c8b32ece964ea72. 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/LVL152202322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8158342eb7c94478f946b03eeec4cf1425c6c18767c48392ca2526eaec6a5a8d. 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/CAHQJ2222933.
Tumša Nakte, Zaļa Zāle (pied. Nelli Bubujanca)
Mēs Esam Tie, Kas Kopā Turas (FC Riga Mariners)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd75381e69d2adbf18bbce2ff6f8596a129db022552f49404f5068b71952d793a. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/CAENV2539667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01bb26c02d31f0f19afe06ad4b5e0440789335ce176c8d4f7358ce2620b8bf16. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/CACWV2593597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb19d8476f7a0fdfdd65d787921134213791a851f182f0f784c5b1c74fb3b27c4. 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/CAHQJ2558214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c3169cf9b957685bfdf6f6a0a3c3180a12fee31b9027db16c9624698ad66b54. 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/CBEYJ2482533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x090984f58834abe130c90abf059de4dc33adf5aca7ee0b6cec85006bb6bd09fc. 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/LVA101100243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ea4e890123240187b8d55b6afec0bcacee11b8af1edfcee20a32a4c1ee4c13d. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/QM6P41784831.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x090984f58834abe130c90abf059de4dc33adf5aca7ee0b6cec85006bb6bd09fc. 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/LVA101100243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe13b329d628d31e80275e177d713839e4cc1331f65180aa94d9f65672ba91d2a. 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/LVA741200030.