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 0x02c997c4a19571234d6dea8bd0b7e7c2046b27b9b5bce0b5c58f758be3d35db0. 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/24bd6af7-db9c-47c4-bb5f-cf5212ddcdd9.json and https://artists.proofprofile.net/proofs/artist/24bd6af7-db9c-47c4-bb5f-cf5212ddcdd9.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 0xc317edbc7670e1113387bbdc4d7b06a86d74f9f137293f0991003b8977d91430. 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/RUAGT2586191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3d5606379fa5b5b7cbb19a4ad57f3392d75c400797f98a5403b073d097bfb9e. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/RUA3R1919025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57dd8deabb5d1a560b764efea18a8d215ae6e1904c71a944bfb35921e0e1b9ec. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/RUA3R1919031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ad446ed8e4f5b3cbca5c30aeeb53b46a6362162563549bfcee2fa4fc4eeed5f. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/RUA3R1919022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e90e4bd6bf9db02fbb279e6bcb064a04989f5263e01ca7598808c085fe6e3b6. 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/FRS182133471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96ae9adc9b2fd982fb2f76174d2c70f9e801751bdd456d1af4462ff3312ce1b4. 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/DGA082228939.
В коммунальной квартире (Rayman Rave Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dd883c8659b425deccb22652dd561e2577bd7a4e0f601ed879ad43e92284368. Chain 2 (Bitcoin): anchored in block 957775 (2026-07-13T00:04:23Z), 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/FRX872359763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cc94ef40278352e04b3bc40f041d6321cc59bed5ad8d995642abdce02d1f064. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/DGA0P2311914.
Мама, пожалуйста, не говори человеку-пауку, что я не съел утреннюю кашу
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ca30b3b77b7cf62011c574bfc6d27c26d100bf11eb5208594b3c03a12e9da63. 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/FRX452437940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x752833469f0370ffb8681a8655eb18e5b41402f5315c6ef92c0bcf8cd4532cd4. Chain 2 (Bitcoin): anchored in block 958526 (2026-07-18T09:09:53Z), 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/DGA052446723.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8514b687df12b2e21dc0a1db9f2de89c289ef8b0c530f3e4bfcb983c1c6689f. 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/RUAH62402975.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3599cb348e064ac97711974281a540ad3dc2f029dbaa827cd42d272f53adefb5. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/RUAH62431905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03763a8e21c8aea13ff1a3db7ce4a07d4bb3fe53c4035077aac61eac5d68e709. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/RUAGT2507923.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50307907470b4a3437876855591e4fe964b567f9fd67bc7900149139b26a9e9f. 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/RUAGT2530552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9aec39158c204ab1898dddc9cb97059f2e678fa6f924cfe2b43e69b7065fdb4. Chain 2 (Bitcoin): anchored in block 958303 (2026-07-16T16:39:24Z), 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/RUAGT2548928.