Fellsilent (also typeset as FELLSILENT) were a British heavy metal band from Milton Keynes. They possessed a technical, polyrhythmic style, similar to bands such as Meshuggah and Sikth. The band also
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 0xd84a8e9198063e57a0f95c0eee7b1940096551c03c2b80aa23b636f5b5714684. Chain 2 (Bitcoin): anchored in block 953592 (2026-06-14T05:36:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0575f397-dc43-46e1-8e3f-65426a0ee825.json and https://artists.proofprofile.net/proofs/artist/0575f397-dc43-46e1-8e3f-65426a0ee825.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 0xa3930abef4782383ebccea5b6e334db6032b472ba7887c7839c936306e5083cd. 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/USYFZ0901601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e6b9dcacd235142e2c975f10b59a11b438e806b9973ca527985a3cc9b72d28d. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/USYFZ0901602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d4fd11d07a15413f0b95c3453fc8834a42d91a70ec9e0ee2a25cab0ebeeb7cb. 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/USYFZ0901603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebed51926be1a8b351665cd6755d0d407288f7da103acfebaa285ae0b6c57c3d. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/USYFZ0901604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99c227c51d9a6790aa23e3f7ec25dc8a810e04124246eff3f6ae6694ae26e915. Chain 2 (Bitcoin): anchored in block 957688 (2026-07-12T09:52:21Z), 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/USYFZ0901605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d7cd6b51135f972aa13a0e32a0e0553f441cf80a4bcce8b6c699885b6cda849. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/USYFZ0901608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x197fd9223cc3ff56c0235cf69802f462171cb6a0c2944063e1bb01a8c87fab7f. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/USYFZ0901609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2210bf4bdc309a8576cc78aee4587c5a98e97210d9919f8639a20d87e1349f6f. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/USYFZ0901610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f110c9c5e9e45481c418e7ec090d9138a17d29f9a0803beb4cee2fb40353078. Chain 2 (Bitcoin): anchored in block 958703 (2026-07-19T08:36:12Z), 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/USYFZ0901611.