Colosseum II was a British progressive jazz-rock band formed in 1975 by former Colosseum drummer and bandleader Jon Hiseman, which featured guitarist Gary Moore. History Following the demise of his p
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 0x72d2a30cc6ddafbaac1e66b4b2e8a5e3d1c0f46284d1097cd7d890c541258261. Chain 2 (Bitcoin): anchored in block 953691 (2026-06-14T20:39:17Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6ae259f0-31ec-4fe0-80b2-002ea112aea7.json and https://artists.proofprofile.net/proofs/artist/6ae259f0-31ec-4fe0-80b2-002ea112aea7.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 0x6969afb8de33ddb3218422c4e21aae59782f910b17a33a3a18f20229d5469ca0. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T19:05:09Z), 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/GBAJE7600008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf443344b6d2857bdf0fde1bcf5aa82402cbdd38ed9648a82e01d147706ff49e3. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/GBAJE0505267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcd52da898ddb924641c0cb793769ed8afba96f6b100f3ac3485c434580a975f. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:22:35Z), 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/GBAJE0505268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x918effd991ae170ccfae8ee4aaa4041304d1078ee669e8c270bd48fb55a2ee5e. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T14:09:34Z), 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/GBAJE0505269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8fb210889295b9c958cc8da133dc6dc0c288a30e5835fd82636e9ddb3b9dcee. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/USMC17706890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x203b82b16aca48402352ee2e1ea0a339eb9e2446bd0d87f458e0220cdf401002. 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/USMC10201672.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5250866e92001d338df9ba9e79f2cdb293633708e4c0fee81a22207c6e191ebf. Chain 2 (Bitcoin): anchored in block 958969 (2026-07-21T04:58:13Z), 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/USMC17706593.