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 0xbe5147d9fae957e4930bfb01bc2dd33bd0cd5fad1ed5225d80bf572f8249fccb. Chain 2 (Bitcoin): anchored in block 953695 (2026-06-14T21:42:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6d304091-e2a0-4b91-bc67-0ab76358dd01.json and https://artists.proofprofile.net/proofs/artist/6d304091-e2a0-4b91-bc67-0ab76358dd01.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 0xb1ac2f801a87c72af10852df3dd55cfe172b7fe97166b1b234641269a080af34. 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/UK6822213337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52c74d4e4e2b29ddfb38b85693a10285997437e389dae8589f695bd6cff32e0e. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/UK6822213353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69ba7fe1db5ef1cf3251cd03a58d395fddf90848b54b131bf828280b310e212d. 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/UK6822213767.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe62b19bdec08b15b6032d589dc4843abd191eff64cb464a55f0053df8c8205e7. 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/UK6822213540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e5462def6644a73267f09ac75dfbef97ba1018918b60eb3ea2a9e5553727dff. 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/UK6822213233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48d4d3518c50e150548ca71bbf5fe9ccc4d82d115653d325987139a35e486724. 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/UK6822213974.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36ae5c3f91b5c9bb958c244a59e4ca794c1ae1eea57affcdcbb8cd22b3bc42a5. 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/UK6822213322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35930dc2d040f5785aa68873b7ba5300f59d21b74f375e670d907c492e0c1a4e. 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/LTH172500002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e83cb9ce592fac7698c697b9353950189b532e86cd0cc81f74aaac566b4a8c4. Chain 2 (Bitcoin): anchored in block 957055 (2026-07-07T15:12:44Z), 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/LTH172500003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a5e48dd279538c9c6d0f776a6e3ccebb97c8b745f2fcf4f0a8bc98656d7937e. 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/LTH172500005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x930034fe676923a327a86b16c8d29000370141849febc0c90c61fafc1515950c. 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/LTH172500006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a7330641f6350276a8fac935cd3efbef1dfa7e53cec5889c30fb5cb15183d4b. 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/LTH172500007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf76f7c4f4c406b02003124037df1b244323c364386fd0a71d16142da05935a96. 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/LTH172500009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce2fcb32136eaeb5037870f75f2f78b72434ce037b633a109309b6df3b151cac. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/LTH172500001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2eb75a711d00db74e820edb23ca5e1632be93b8d1e3bdcde6c8ca23b2cf0ea22. 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/LTH172200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3b4970e5a90df17c7f23c504ae3a8bd8974f37a5b2209f4bc216209639ca8f5. 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/LTH172200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcc9c10fb04a92d7e2796ffddc82abd784b27f177fb0fc8993a2f841c316c06a. 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/LTH172200004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x556f13d80d80927a69f5b14cda919b990fc9a5d0f7c2e455aa414e881a8849d6. 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/LTH172000002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f299072abe6ec45a3cf396fa0c2c33430c978c6cf08505a6038bb5831f7c740. Chain 2 (Bitcoin): anchored in block 957020 (2026-07-07T09:18:01Z), 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/LTH172200006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6f12c7f477af206c550fac4b58b57e5c72bd63251b5b73cfad9c0b97afad241. Chain 2 (Bitcoin): anchored in block 957032 (2026-07-07T11:43:09Z), 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/LTH172200008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde03e8c76e64fe87fddf78abf4e96e7582476fd7de08f411212418e176d9096b. 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/LTH172000003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73e95afbbd2bc84ecd459b4073cd6074d1db384dbe15c15d35bb098d3aec2942. 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/LTH172400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde03e8c76e64fe87fddf78abf4e96e7582476fd7de08f411212418e176d9096b. 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/LTH172000003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x556f13d80d80927a69f5b14cda919b990fc9a5d0f7c2e455aa414e881a8849d6. 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/LTH172000002.
DA LADUMA LADUM. Dzūkų advento-Kalėdų dainos
Vuoj tu, lapela, kytra paukštela (Buciniškės k., Noragėlių sen., Lazdijų r., Lietuva)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e989f9ca77a6dbbf03193b246b884ff58cfe1c2e40ac7f307ac8dbe69a3bf34. 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/LTR602400010.
Atbėga alnis devyniaragis (Buciniškės k., Noragėlių sen., Lazdijų r., Lietuva)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3de54b714ebf5d4ce844e06b1d2e27167ae5b77a8cfec0a9fb9c149edf29e45. 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/LTR602400015.