Tubelord were an English alternative rock band, formed in 2006 in Kingston upon Thames, Surrey. In 2009, the band signed a record deal with independent label Hassle Records and on 12 October 2009 the
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 0xaf9842a778d3e99580d0f6f9032b546165bbc62a9610986a1ee34b346bb29a35. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ba7d3838-b7c6-46ab-a27b-2586b4eb1e7e.json and https://artists.proofprofile.net/proofs/artist/ba7d3838-b7c6-46ab-a27b-2586b4eb1e7e.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 0x8bb78f7887e043e0f063ab4c9272114cc62b9c286ddd388be86e187f16aa1f4c. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T08:19:47Z), 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/GBJSG0908001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77b685b75dc429b316c280cb32c362b72ee9002a6f07bea108a6e0962911565f. Chain 2 (Bitcoin): anchored in block 958268 (2026-07-16T08:56:51Z), 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/GBJSG0908002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51e91e37b63e047214f523bc04d28e93b0db72495c7c380251462b34f3e85c8c. 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/GBJSG0908004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x131c7012e381a146b8fd0f0aac2101ba07915255c64b3952202b99796d7d3b29. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/GBJSG0908005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb65ecb4afccc3d1fec2adaf4905fb99c104a3de667e6a6ffcfa0b945f77aba5b. 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/GBJSG0908006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74b306a7c759ce6018259b2f7d14b3ff61ad84586ca3d625d6eebe141292b48f. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T17:33:43Z), 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/GBJSG0908007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94d6663a2cb6f4653fec013e61c653d460d74400bdd690c3f345d490100ec255. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/GBJSG0908008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaae418b3c2adb5c037fbe76702fc426ac9d78113d6147582cf9f4db2c58bcbb4. 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/GBJSG0908009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe495582e014b024c8dabc8fc4e30ecd508a0c69457860beb500ba57a0a9c6e33. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/GBJSG0908010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd41e94b21a393f36f0745a51424849cecc5c4c598bba25fea4aa2122d87fe09. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T14:03:35Z), 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/GX3Q92521298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefab4cb91492184074c80c76df6d3f2765dbe5adce934fbe112ec13ff723b31c. Chain 2 (Bitcoin): anchored in block 957756 (2026-07-12T21:36:27Z), 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/GX3Q92536074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bd5a3304a9d299a5d78f28461e952c3fe4a9998868646e3054ed08aeab34dbd. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/GX3Q92536075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28085f90447a686f7998d97e8f8f6bf8d8ed1ad3ca6cae04a0290729a015999b. Chain 2 (Bitcoin): anchored in block 958268 (2026-07-16T08:56:51Z), 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/GX3Q92536073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70bc6567cf3a012d2ce10500eb5067e9993d3e47d47d3f4f1469c723d41622f6. Chain 2 (Bitcoin): anchored in block 956482 (2026-07-03T10:33:57Z), 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/GX3Q92536077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae5d16f13903a15bf4d0e0e08acf305a4eedc487eb6d667522c816ae1719abc8. 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/GX3Q92536070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x656944141825a151ee696281f2fcf96275c849e17e19e81480791bc32fd29936. 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/GX3Q92536072.