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 0x6271f6596b2afd388b6940e35476281a7358eba8b8eec32da066b45f3a00c1cb. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7fafbb2b-87b0-4a7d-8a8b-08cf027158a3.json and https://artists.proofprofile.net/proofs/artist/7fafbb2b-87b0-4a7d-8a8b-08cf027158a3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Rocky Horror Picture Show - Original Soundtrack
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 0x22c201874bd8648081cd8e5b3328f5276f520da29cffa9232b0b7fde70d02693. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USA560853989.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4f95b3236d6b9cf73cff4537f76ed6fc495a33a930036a3cf7624e321dafd67. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USA560853990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a021e8b816d517f355bc59fa8dcad6f01a22ea44b4b3243b5f0773da4ca9fcd. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USA560853991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef97f80045a3998e62924e6cabc3fe83639c4d8645ade66dec0f5a4bb38665f3. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USA560853992.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2426166e1dd5340b0ae0bc31fdeacf5603bf212b3ed8c3961abaf5e9fb465f9. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USA560853993.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa606c9ae8109130696ece22c019ebde3578032ed930ad09e84d14478bcfe7f04. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USA560853994.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94349498157277ade266332da97ec9bdb30e17f72d013676d2889c330a213336. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USA560853995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf35e0695faf4505ca528468364c91fbf0cdbc0796db1333b3ecdbf7dd2f27646. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USA560853996.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4e5368fa8ab158616f687f179e8ea2a6a9148124a82574a6ffc14ccdeaef9d6. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USA560853997.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x534e548f3b7dc75943222e5929e850eb64ecd0a8ca42aa4ee5d40aad5961a56c. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USA560853998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bcb442f1251a45607ff85275c31a0d016a5c4df72c076a6d821b1330ff747db. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USA560853999.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07abed5f5966562a8f289148bd3d9e4ddc35b0265971715b83b4ee0db699acf8. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USA560854000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ad40efda1d8b274a2e9f79d66451a159a13036ac68df8bc082b026cfb692c35. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USA560854001.
Science Fiction/Double Feature (Reprise)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f59a6ff62589a38a87dd0735572a7b77d988f378c0291652f9f71b1fd7efe32. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USA560854002.
The Time Warp (Remix 1989 Extended Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x279431f0d83189b7d6424e1400e092a4599926194221264e13b0b6d13a6850e1. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USA560854003.
The Time Warp (Music - 1 - Background Track U Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x834317da8f4a88bb001750803f1e4454768864fcd97524af17e74b7fca936d32. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USA560854004.