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 0x354b5e99cecc9bee1988c087d9546018889038b69c73b857e353336c590d027a. Chain 2 (Bitcoin): anchored in block 954014 (2026-06-16T22:46:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/327db09a-a471-4959-ab35-e2219ebcc81f.json and https://artists.proofprofile.net/proofs/artist/327db09a-a471-4959-ab35-e2219ebcc81f.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 0x447653b1ddf05859923e13ba91af7c66911bdd462a87ed64eb85105ef5e106ad. 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/QZGLM2466379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a8e7c4989310227609e44fd709c439187ceb0c672b3ee162e3f064fc96666d2. 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/QZGLM2466381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedd7868dbbf4b43d6e98c19bc1dadeab25c051208499d00f7fc5d2d6c37bf2b1. 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/QZGLM2466382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeda8aa7733c38cc715a57092d688e1edb609520217aaad6ac3bab58abf80fa98. 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/QZGLM2466383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21bbd4a466db19dcc4b9063b6d4420f69a08520e029cc87bde68229542d35ca6. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/QZGLM2466374.
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 0x749a035cd5500485523d1e6513fabd5b2a845960c7f7b6ed71a9f5df674f095f. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/QZGLM2466375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62aeaef8eedce3c6dec5775622bdf6f180ab0630e4c178a6bb00d0d31e4b4055. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/QZGLM2466376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a43c5683beafea894d9acd169a9173ddb185684d9d821935edd8ae796b6791b. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), 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/QZGLM2466377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ea86499b913572d180dad6f3cf835c514cba69d7ea580662c8bf4fb29f832a8. 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/QZGLM2466378.
Апотекарий Мерос (Там, где ангел не решится сделать шаг) (Кровавые ангелы)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63aba576cbd4aeb4b5b2f99981ca27cc635b75016972380537cd2131d1b8d2e2. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/QZGLM2466380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf6a78e77b6d29c9e334fdf8f67721456808f4f2910cd08f9a996076672a51e3. 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/AEA0D1896084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee6b2bc3ea20cab89fab8c2015ad644d047e30a94fddd5267dd1f06e05bcd246. 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/AEA0D1896093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5cfcd60dbfddb568c878c35f36cc951a5aa45a5e9a645567a01e17b2aab9019. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/AEA0D1896085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea774467883ee69db8569544594b5e4a5e8e6cf6b060d2f12de8a32684926847. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/AEA0D1896088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbcca85d55929a843fffa713227e1aa4054d62c76dda153d74026c7971fc84f7. 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/AEA0D1896089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36671d9ae6fd4a9f9ac1b369977d6ed73def2c3bf3b7d7be0e852b381b5f59b3. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/AEA0D1896091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x263b9bafb7625c01edff6fe16bc365f4f902600bd52ac0ae2456fa7ef7b51a40. 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/QZNJV2490716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3474b7b0b36e322befb0b30ffa41f514b6b213198a09fe85ed38a5f2cf639b4d. 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/AEA0Q2141208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b038539a9f8c8fdfb0cce204712a4a2db939a8cd9578198f01538f067350731. 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/AEA0Q2141210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59a838c7c487cf0b0eb65645c3b51987f0811bb0cecb412a248b0e6d478a66b7. 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/AEA0Q2141211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b39bfbf2ac43beb1861cfab8cae7285f780f9059fc819dfbbbdee7458a8a0db. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/AEA0Q2141207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1635a9dfe5b5d7f0efdc639c88c5be11adaea235d4e4fa09e706f159aaea1fb. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/AEA0Q2141209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaeced950e92df88bf7d9276662316c84891d146ba674e37b663c1f4dfe88a5e3. 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/RUA1H2105933.