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 0x830ee64e454090a1ab97fb21d9f61f52b2e0de132bc0e999be2c8fba23f53a32. 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/4298f324-6e83-4199-8e7e-7c5bf704bb15.json and https://artists.proofprofile.net/proofs/artist/4298f324-6e83-4199-8e7e-7c5bf704bb15.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 0x78dc550edae30f6373445688ebf4bccc09ab603415ffa42bbdced0fd11ce186f. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T14:33:09Z), 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/RUAGT2339472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x191b3a8b094d193f07228728dd5ba362786eecd2b753d0ef8bf938855de4533c. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/RUAGT2339475.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf24266f1e5b7e52047f8a15d13b68b414f601d66d43bdad678b8abb392e66d97. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/RUAGT2339478.
Три Кота: С утра до вечера (Музыка из сериала)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c64526f3750ecc819bb945ceea5d432b299c641c2685cd161ad5c02f158ce70. 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/AEA2L2207346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7aa00379776d6f238fa7b528033b7a6b4ade887c259ebd311642b15376545832. Chain 2 (Bitcoin): anchored in block 958523 (2026-07-18T08:54:12Z), 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/AEA2L2207347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7663f56faa487622b7a6c9e635b931ee4781753bfd46dbd06f06eb838990ffb. Chain 2 (Bitcoin): anchored in block 958582 (2026-07-18T16:47:25Z), 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/AEA2L2207348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65614c8b10c5212cf6c278fa34700e4abd6ab2736b724b52c59f14447db600d5. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/AEA2L2207349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f5135a47de02cb3cbd82ede628bada5d83789b7cee87b64ce2bcfcc272a77c9. Chain 2 (Bitcoin): anchored in block 958095 (2026-07-15T04:30:08Z), 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/RUAGW2500586.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa32372452a97bc0ded88cc39fefe43e52067653be4b21f5e37ca310313c35e6. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T19:55:26Z), 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/RUAGW2500587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f5bdc2181df234062efb116b30865a3ee655eb4f8b8a6df1efa78c0518364ff. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/RUAGW2500588.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e4b7d4456bc6e24cf6dfee180d18eb81b4663a472b8af16c19b06aac4256b73. 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/RUAGW2500589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bb7dd7dce2714332a2c89c76fa43ea81bee7d7671c730020c4c3f0e18dd8038. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/RUAGW2507508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x836c62dca914953359d4b7946db171d859ce7d214b2a8e6f4d27bcbb6969ebbe. 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/RUAGW2508117.