Subsignal is a German progressive rock band. The band was originally formed as a side project by Sieges Even members Arno Menses (vocals) and Markus Steffen (guitars). After their main band disbanded,
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 0xaefbf75be389db46fb0ab4c9db79eb2df25d6015642bc3b27371cd8afc24b7ff. 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/9b7c0927-63ea-48ba-a2d4-a880f932cf74.json and https://artists.proofprofile.net/proofs/artist/9b7c0927-63ea-48ba-a2d4-a880f932cf74.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 0x46a19e9c85cc5f5edbac27dac71c9933007546b5855b1428962b2490ad8f65b5. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/DENC12300861.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35e3d57c1ca3855c24171c07c28fe9fa944db989b41f0af488642e823e134572. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/DENC12300858.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6aac9c2990cd691181b234c80eb2945867b05c3f81a714c2d54094e7ea70226c. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/DENC12300859.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x368efedf1f991070620746da8e2096b63ca7560ac47b44d5f08bc6bf269b80cd. 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/DENC12300865.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab4c62865801f635a5339d3453c2adc789c03ccbcf914c6a7761ba600cda4c98. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/DENC12300862.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03937be8d9208be022a254c0b42122791959f88f671cf457e7af22042232cab8. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DENC12300863.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4feb881882ec74cb924ce378b061a18ca02251320a7cd28583a8fec014e7de6. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/DENC12300864.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfec385614ee5ff3c46767d57439eff9305ac874780a13881dac8ac208192a426. 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/DENC12300869.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04e0e15b68b032c250d68eaf8b9fffdf86c5f94443b1c12f4b4d865106c1346f. 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/DENC12300867.
A Song for the Homeless (Live in Rüsselsheim 2019)
A Canopy Of Stars (The Best Of 2009 - 2015 )
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6c57cf50d877ea68068f00997796aed3f31f809d10c6460a5507b65a5f65306. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/DENC11800531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30c775217415aff6b09b21586e1a5c82a809db4eaeba8935c8bc7417f256427b. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/DENC11800532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9215d32c80d79bc9888cec6d3de69d9e7866fc0c3b4daaffe1239d4a3c6f3c2. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/DENC11800533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc2044e6bee240ba34a58673a5c7bb6015fc056864c681de3223aebd04f0ccb4. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/DENC11800534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc6c36de7dbab8d2a80c74b14d059ad93397e54a4fff7abc64a0d2b940a589c9. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/DENC11800535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0ffc354dd33bf0512dd6e6e76cfea1812416526fbea12b40fb1fa01b936c19a. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/DENC11800536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3ebba86e491a8a03bb97dd99ac0cbad988be44e8edb2dd26c0403a113c59092. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/DENC11800537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a928db5830f548980da36d495fa66406ba08e47a492cc4c9bcdae1415c6af32. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/DENC11800538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17a437596e0a2a5403c5cadf2c8d2a06dd3cb44fe89b49b21aff08ad27f852ec. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/DENC11800539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28b30d78f6d8c901b2ab8a8634f4fcd14e86e27f174a5ad59c4bbc309f0d0c72. 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/DENC11800540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfecdf1c371013bf348fba424d0746c9f4d59b330576ea3649868bc8fd3c11f1. 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/DENC11800541.
Even Though the Stars Don't Shine - Radio Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ce7aad487aa82b0bcb2a8ca50435fc3f34ecdb19d0b8e222520f89c00798b61. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/DENC11800546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b0705ff343f703ff9da988ae24dd71c731d339893e416ae3f6c9a7f966f9a1f. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/DENC11800547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe086616b1425e7c8ec4b05f048b1b2ab06ecf8c5d9114ec12aa67e8ba1d704e7. 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/DEA311101812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x349455146633ad191e40a6ea0dc4674b0d8cbc5d6a44c09f263aabf96e07df58. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/DEA310902746.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc522eef8e9c396b78fc384c38acfe98fef8691c28d6cae7b17926488c061c5f9. 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/DEA310902747.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ac673626e8c55f02e5fb16ca115ace80f18fdd686ffac99dad40ff8f65b1b7d. 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/DEA310902748.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bc49c99ebf13b54c1e2bf5d1170f260ed3b7267102be2dbb97ce5cc8c6e50bd. 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/DEA310902752.
Even Though the Stars Don't Shine (Radio Version)