Bulletrain is a Swedish hard rock band formed in Helsingborg's suburbs in 2006 by drummer Jonas Tillheden and guitarist Mattias Persson, along with singer Robert Lindell, bassist Tim Svalo, and guitar
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 0x28018ed0c0d8c32e255116bd07c8273d996d76cd2958ea76dcc9c64414a5a13d. Chain 2 (Bitcoin): anchored in block 953997 (2026-06-16T20:07:57Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/31581ee0-9e5d-42ef-8d6c-fa850ad4f08a.json and https://artists.proofprofile.net/proofs/artist/31581ee0-9e5d-42ef-8d6c-fa850ad4f08a.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 0x866bae1d42d58002f99fb0f468325ebf046831ec923b2124d133151b4f3ba637. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QZAPG1854807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69c0b088947b1f3d6e1ce1c96e3804da260353481ffc0168ff9830f6def8b6fa. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/QZAPG1854808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddc76373eb999956837d4b49665272bde27ef36d9444d298f508d7c871dff24b. Chain 2 (Bitcoin): anchored in block 960513 (2026-08-01T04:52:22Z), 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/QZAPG1854809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cddd2367f3608b93f7e72b10b7e949fe0f957fec3320d7589b9db2a1cf0c873. Chain 2 (Bitcoin): anchored in block 960506 (2026-08-01T03:50:58Z), 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/QZAPG1854810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f885efc8cdbd3ec828c413cae900590abe97ed0f78862d540e7e014ab84d256. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/QZAPG1854811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a43b5bdee49d29ac66b712bdecabd6fdcfd63efb79795e207c959c86d8aa69c. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QZAPG1854812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05570fef0a315409fa0a1efe75a44e96a3eacd32e4f18ae179747e866a18ba1e. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QZAPG1854813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f9372234c24bf71aff310f7a54ab14327190eb926e12e02ba83e19e71e346ae. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QZAPG1854814.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1c1e3060381211b2b397ee33c7ff358dc8f7c3964b76117ed30a3f9e07d422c. 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/QZAPG1854818.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb6d2db199e3cd28946e2b8d37c5cc669b91cfc80e02ac8bab181165fd30ea0e. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QZMEN2013562.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67c777d416b2579a60a6681e620fc6b235c053af6f87fb428db7738909a170fe. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QZMEN2013563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e7925248de832b6e310e06539be7604b5a6a5f98947ec292ad29256df314691. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/QZMEN2013564.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d4960da0518251f6c6c27437d3a45b865c826c6623a5b63ce233f70adc7e22a. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QZMEN2013565.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1901d33665c54b86b5e7123f24b47f461ceb0f12a1004cc55095153841963a2. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/QZMEN2013566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae70be9a7248fa2caa5af0b9b345a4b3120ab0c39d213a0c5ab63b3762899a55. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/QZMEN2013567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4abaf956afce42191c4a1ee47cf3edeec3d2c5c3a4254a3f50b9541db977f98e. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/QZMEN2013568.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9a05b2efd97177364cabaf430f70c903ab051b75e1ab23d3d0ca04bf63a7495. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/QZMEN2013569.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8055ef52ff4cb6dc1fefce64cec57057f372085b7110772de577700f671bc55f. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QZMEN2013570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc08e43d899a2c52b8f6536c716aa34b74fb80096ad99584fc2f9918cc7957c9. Chain 2 (Bitcoin): anchored in block 960509 (2026-08-01T04:30:37Z), 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/QZMEN2013571.