Nad Sylvan (born 4 June 1959) is a U.S. born Swedish progressive rock musician and songwriter, who is currently the vocalist in Steve Hackett’s band Genesis Revisited and has also maintained a solo ca
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x681ecb397ec9da97ae27b23e6d564965924ad1d441740de55f262060f90bb498. Chain 2 (Bitcoin): anchored in block 953803 (2026-06-15T15:41:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/eb1953d9-7946-47d4-b1f8-b09c53223338.json and https://artists.proofprofile.net/proofs/artist/eb1953d9-7946-47d4-b1f8-b09c53223338.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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9939293ef6a0aaf09871770b170a2a1d460af9a5ae1570b1b1a13e3f3c5ca09f. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/GBDHC1778702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd5466105910da0e5a55b002f6c9030484c4ff95f793dbeac0d5b9f96f7b6d56. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/GBDHC1778703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfd1478c4f9d0a5e77a0d14eeec636a92275f59a367ada23afbbc7ad0eae72c1. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-21T21:34:21Z), 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/GBDHC1778707.
The Regal Bastard (Bonus Tracks Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e96f8a179605c8ed7c9fb9c92c80e4af2708be1f5c6be819a2975f3041e31ac. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/GBDHC2121107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc556af935e958d58108bd27f1436db1ebb6841402244ba5cb62d42fcca29eb83. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/GBDHC2553403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f5e214dabb32ff05ac77db48941daab153661b5bdb2b28bc532a65cac93e261. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/GBDHC2553402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc556af935e958d58108bd27f1436db1ebb6841402244ba5cb62d42fcca29eb83. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/GBDHC2553403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f5e214dabb32ff05ac77db48941daab153661b5bdb2b28bc532a65cac93e261. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/GBDHC2553402.