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 0x627eb1c245418f01fda60b4d2bdad8f3f85c13eb1de05d9443a10b9d803d28d9. Chain 2 (Bitcoin): anchored in block 954588 (2026-06-20T19:15:05Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ba23b483-688d-4121-887d-7fb9d0d6fff2.json and https://artists.proofprofile.net/proofs/artist/ba23b483-688d-4121-887d-7fb9d0d6fff2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Welcome presents Little Comp Of Horrors Vol.1
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 0x8d0a685908f903f26acf6e956d0c5e59156191173b7cdd327b2176e33f290528. Chain 2 (Bitcoin): anchored in block 959051 (2026-07-21T19:48:03Z), 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/CA5KR1961443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8df393b024ac5f97c757c90230f94fe5a05cfdf211155f513b4943d3eefe7899. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/CA5KR1961452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4acd748079c4e767040864fa618476028d6cf8fa8501578c68628d54242ab62d. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/CA5KR1961444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ab84d1522344b8cd09bfc901c2511cd9f9db238770692cbc896b6363f11f84d. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/CA5KR1961445.
4 in The Morning (with Dougal & Joey Riot)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33e6841ac0c9963ac68b8458112e33b46a54913442a8078040e2c505a3f6fb2d. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/CA5KR1961451.
Welcome presents Little Comp of Horrors Vol. 2
Welcome Presents Little Comp of Horrors Vol. 3
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa20660444a63f2d40ab6ef0e8f0e3e7f051164f73157e2b21ed498e7309bd6c7. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/CA5KR0005509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8ee97ac57c55bd4a5357b535d352a334d7263f364b2d8fb21767206601ce205. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/CA5KR0005510.
Welcome Presents Little Comp Of Horrors Vol. 4