Choir of Young Believers was the musical project of singer, writer and guitarist Jannis Noya Makrigiannis from Copenhagen, Denmark. The band, which consisted of Makrigiannis along with a rotating cast
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 0xb2b0244d8fd203e043c22de80db717b9efc0889e38bd1763825e89bf7c02f36c. 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/da639a55-8566-48cc-af8d-c88374b184a4.json and https://artists.proofprofile.net/proofs/artist/da639a55-8566-48cc-af8d-c88374b184a4.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
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 0x9b8887175761c1cc0fc735196d8e82044b02f8830cd94e98be1e79e2bc600e2a. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DKGL70800202 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbd89ce37739c06b039f2a6edc1dfe821853cbd47f48d051cf6868d897277764. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T21:05:52Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US2J70908902 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x721f577d1e11c1ad40ef64042c91f6e3704e7b73fd89444b9791da6a576f47f4. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US2J70908903 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0ff25d33bd4689d150fe1744867a129ac0884b0e7a07eec53201cea7fadcb97. Chain 2 (Bitcoin): anchored in block 958535 (2026-07-18T09:42:49Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US2J70908904 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2c3960f2d2f6ac507696d231a871c66bcaa1202785426ebf578a525bd992c6e. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US2J70908908 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc31d90d2585bbc36fde9935a38b0dde53c00b88cc61f1fc7bf4d4e147750dbae. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US2J70908909 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f7c87b94d1aea1f37f29f71fb0c801d504e1d2ab7798de49b23222d645d6c85. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DKGL71100303 — a six-check JSON result.
Hollow Talk (Lulu Rouge's Stella Polaris Remix)
Hollow Talk - Lane8, Jody Wisternoff & James Grant Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf07c8ff24a7a71f0b04896f33b51bda81e7d04cf1e3ff1298d04c3c2de0cf6b9. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBEWA1400670 — a six-check JSON result.
Hollow Talk - Lane 8, Jody Wisternoff & James Grant Remix (Mixed)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29cd3d2a25dc3dbfe4193402cbbd7ce92823433c3769aa06e9052c1a4d863e8c. Chain 2 (Bitcoin): anchored in block 960113 (2026-07-29T13:38:16Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBEWA1907303 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf07c8ff24a7a71f0b04896f33b51bda81e7d04cf1e3ff1298d04c3c2de0cf6b9. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBEWA1400670 — a six-check JSON result.
Hollow Talk - Jody Wisternoff, James Grant and Lane 8 Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d1a1ed9dd507e0a21566246dfd43f8c33482330a8558aaa6be22bc98824d274. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBEWA1400776 — a six-check JSON result.
Klubben (feat. Jannis) (feat. Choir Of Young Believers)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac535ff48696037dbf9830f9e09edfe05afcd553efbc668a2432de618f7fe416. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DKADG2300204 — a six-check JSON result.
Klubben (i Klubben) (feat. Choir Of Young Believers)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bc7ea8305cb6a55c5d6d05592f0b0a42785695242d14a275fba1736cd23fe5f. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DKADG2400154 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac535ff48696037dbf9830f9e09edfe05afcd553efbc668a2432de618f7fe416. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DKADG2300204 — a six-check JSON result.
Hollow Talk - (Lulu Rouge's Stella Polaris Remix) [Mixed]
Global Underground: Afterhours 9 (Mixed)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74faa38fcb92493f69840eaafd247ed71a06bba41bb7a77b4997632525abf09b. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBHFW2200008 — a six-check JSON result.
Hollow Talk - Jody Wisternoff, James Grant & Lane 8 Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4ba08e7ecd45289f16b71b15cd587464d03d5b40f8f1d39a7eccbfdfc231b82. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLF711800110 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82060b84ab8a7a544eaf8277f2dd51bdf0aead78594ed5e589ad414c054fa092. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DKMFA0900601 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82695e131d99cab2eeb7e20ff259248881a6b05b4a3eb6a62f1df1ede0caac5c. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEU901501385 — a six-check JSON result.