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 0x7b22c40c8b48a26e4acea9d2efab8e3e423f832c7099df651910fe9ccbd83ed7. Chain 2 (Bitcoin): anchored in block 953633 (2026-06-14T12:47:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/32d4270b-ca39-47c4-a6bf-5b32cce79c5b.json and https://artists.proofprofile.net/proofs/artist/32d4270b-ca39-47c4-a6bf-5b32cce79c5b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
My Father's A Homo / Everyone Tells Jason To See A Psychiatrist/ This Had Better Come To A Stop
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 0x7fa59be9601e12076019ffee8d9bb9623ee16f4e1e20cc8d48dce1385f11887e. Chain 2 (Bitcoin): anchored in block 957756 (2026-07-12T21:36:27Z), 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/USKO10502525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7a2713851da6802d25a5afc4c1bd8016c63e9939a5104ac3c34dae4d493f6d8. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/USKO10502526.
A Marriage Proposal / A Tight-knit Family (Reprise)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16f8809f7b1da89c70607f58c4ff0f43b5fca3687c4d5f2b6b898f781de47dce. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/USKO10502527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95a8bf79554115666d130a41a1b0ed31a46a66cc72b5b7e385f7be2bd422c79e. 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/USKO10502528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42e942f69d247a0b33a8d1318d1891fde8320aec9b48de99786a8a937574826e. Chain 2 (Bitcoin): anchored in block 957756 (2026-07-12T21:36:27Z), 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/USKO10502529.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd263636f688ed332aa42800ba892a680f53cf376986891ada2c59493594b2877. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/USKO10502530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1aae884301899178b77f0b37a01e250c46402ab40e8998a5e1e38ba3ba9ccfcc. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:07:04Z), 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/USKO10502531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00c033f0e976bdb43dde510cd39b754ea4ace98637352aa92dee9ac833eb4597. Chain 2 (Bitcoin): anchored in block 958091 (2026-07-15T03:17:03Z), 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/USKO10502532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e08050d7fc3d4247af7d380e49ded29f62b1b0d7d06f4efe33cf550f79ae25d. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/USKO10502533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8aa249bf4ef53e5a1661cb646ebdd66743d451df132e8cc69274fbd8531ee338. Chain 2 (Bitcoin): anchored in block 958571 (2026-07-18T15:39:25Z), 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/USKO10502534.