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 0x60e2c82555092550ed1de6f85c1b5231052016045e02b863982645c1f7f811ff. Chain 2 (Bitcoin): anchored in block 953625 (2026-06-14T11:37:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/20cdc450-8254-421b-99e2-7d53f58465c5.json and https://artists.proofprofile.net/proofs/artist/20cdc450-8254-421b-99e2-7d53f58465c5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Dryads – girls don’t cry. Soundtrack From The Motion Picture
Dryads – Girls Don't Cry (Soundtrack from the Motion Picture)
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 0x24fa3cc268911959466e38f57d7aaa13dcdb380fd3adc690d45c2873f8881e1f. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:23:28Z), 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/NODVC2301001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52bd49e780e120bf70cda042813a74b703a9ed2f9788de030c91a77cf60410dc. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:23:36Z), 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/NODVC2301002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad18a31f5758198f7de0ed160dce120bf124315cd03fb93190e3f1f403ff448d. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/NODVC2301003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a5adec7ce6f370934bb7a71b76e3222833f038464262f73ba04e5e51e1022e2. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T22:42:42Z), 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/NODVC2301004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05fa249972de48f690b0c7b2165efc0d40d8a2bd233ef0fc4bb23474b0351f8b. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T21:20:45Z), 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/NODVC2301007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81ccb30b5eba8dc5377ab10b6f94c9b7a6bfbb02443a63da788a547894fb2382. 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/NODVC2301008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28bd368c665df17ab2f390d865a985716a244616b3c1cbb12ce260e29e46cf5b. Chain 2 (Bitcoin): anchored in block 958067 (2026-07-14T21:26:15Z), 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/NODVC2301010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd915fe1fbef11a1d8af2540068f32a1115c8ca97e6ee67b48375137e9472dce2. Chain 2 (Bitcoin): anchored in block 958384 (2026-07-17T08:27:02Z), 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/QM7282508717.