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 0xafa08ff188841c86155b79399c53a9101c4f91099168fa7c3c47e817df137b3f. 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/15db1644-9b53-4a0e-8c53-8cc3b53a819b.json and https://artists.proofprofile.net/proofs/artist/15db1644-9b53-4a0e-8c53-8cc3b53a819b.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 0x99b514c4915cefbc6285d7114669760eba0754ce809ab6a136afc1450a516797. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/RUB421201141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x478ba6d7a06f5592bd0e42e58b0384eb5462943790dac0b3513270998cb886dd. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/RUB421201142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55e8241d2681d9bcffefe89cc8ea73be4ddc044a1d90336ae51d78a1dffc2cc9. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/RUB421201144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1df33183c4fa5fab35cf2a0b124243a3172722759a933ebb2c3bc5cdc08fab5f. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/RUB421201149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7ca79e989865354ebd53588be7a0c09dd9756100847f29c9b5c99a0d41e4d81. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T19:09:12Z), 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/RUB421201150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4efa06f6a604fa9d551af11ea7c7a552e48ca362ad925ab644159330ae4f468c. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/RUB421201152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa0379f7ad0db90b5412d7c47ba243ac60ea91bc419eea5c3d98e9aaaeb5554f. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/RUB421201153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40756b744ee30fe34fae0cbb9e5ed33166b9206a0914e57e3c35bad93c212e73. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/RUB421201154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd695e43d0a14e84443f239f05a5a61e7d51d71e718e8d1cd2d761c2c3f6c0bb4. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/USA560724972.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcae57898692a535805fffdb69abf95a8a38779d5fcbaf712822ac94ab10a4fcd. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/USA560724973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaef23bf9a50f6a26c0b379586806aab29865f1a3b462e77da1a1b9bfa35be678. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T23:36:32Z), 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/USA560724955.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b6606eb502f008eb30031044e6aed688b87af02db9935d1f7ec09de9f7b26b9. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/USA560724961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc318d3b661359692b31035193ecc2060b63e00e898e76ece7ddc82ef02b7a71a. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/USA560724964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05a14ceea73962f3a51899f9a4cfb98eb7eb821af9e7ef2920de47d10b2c2d50. 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/USKEG0910912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e1d615cfcbc726e5a8d9d799e56c7214956ccdd92e49804073fcb3bfc3acf3a. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/USKEG0910915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefa3ddc764046d77e896be4d674680c9609283b1485b40d59e10c90b26e13b32. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/USKEG0910918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae0eb5c731b0abd3e009822389363f3b3ea9211d2acdb378fc52de3dd8f70bd8. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/USKEG0910927.
Vse v ogon - Pesnya Tsarevni (Все в огонь - Песня Царевны)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c446a424082b1e93bef95bf78b0f658bcee3768cd7837499b10613f01b07c2b. 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/USKEG0910928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5616c154f683d8431199a759c7901a484b386aae0506a8ca92bd07b7dd37f7ca. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/USKEG0910898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa07d810e0d6a81ffc14bb845d40f4acc3623a902048fd867a1bbd2ef40d61e01. 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/RUB421801211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81920d97082728d1166daee4666a6574135415157f01fef7a1c8c9d0822ff410. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:21:41Z), 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/RUB421801212.