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 0x8316e8b0bda28b8c0a766036b659afdeb79c2bbfba79581725c89abfaf9df6d7. 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/5191711c-0378-4733-bd00-7462fa6c6cf4.json and https://artists.proofprofile.net/proofs/artist/5191711c-0378-4733-bd00-7462fa6c6cf4.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 0x68808146fda78e20274ce3826fc4f4e002a8ecda51a76a431eb73740c9925c04. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/FIFMF7000002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14d9ecd1b18d37061870c7d9536be76fff0ce3d67f1177f455aa221f029ae7cc. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/FIFMF6800003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ca156c727453411b0bedf5f4afe3d9beee0a8f965d17e8d8969735281dcf3dc. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/FIFMF6900004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c7d9683ea8db604d39d9000294bd36a373bae5da5711d6cfeb5d85a5a9cebd8. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T23:13:56Z), 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/FIFMF6600003.
Arkistojen Aarteet - Portugalin huhtikuu
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0371b528555462e0e9369730690da845e9d787d5f1e0e3da161254572e31d20. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/FIFMF7200009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16d32eb4f93db58520a0bf40ee8c0ffbedb2b1d210d0679158c62d50b9270666. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/FIFMF7300126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79a654d5971637687e74ebdbb1d0f3b809430450101a9d926782a42b45402231. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/FIFLG7900900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe74de6482f30bac4719a9b6b01069ab5cf99e8cb49b8abb560730879dfa6f2ce. 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/FIFMF1225455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77b92c46dd1a027bd2f51e8e08297fb855e208920fd1123f5ad1c89da77af3f4. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/FIFLG8701100.
Intiaanien laulu (arr. T. Ali-Mattila for vocal ensemble and orchestra)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x166200f73175322366829bd2159dbe3015d1ca986ee8d12a4cdbfe5353330327. 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/FINDE0500049.
Hyttys-Hubert (arr. T. Ali-Mattila for vocal ensemble and orchestra)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5addfe8c921852bff336147e007e1f93bf822077727e4cb514e14172e035dec. 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/FINDE0500051.
Janojussin maenlasku (arr. J. Tikka for orchestra)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x423807e2529a19b2c9ca221a3955ddc06b7d7faee8a03534cb0c08a0ca60dcc8. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/FINDE0500053.
Hyvin hiljaa (arr. T. Nicolau for orchestra)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67209d4384a1322c28593f5c238fad88d8d0b7b9e40ecdc389028c41a169abb3. 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/FINDE0500055.
Sairas karhunpoika (arr. E. Kosta for baritone and orchestra)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52ae60586d056c620ce111485899860a7ca2fa81a43c58b9ab368b9356260ea2. 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/FINDE0500058.
Kenelle tuuli laulaa (arr. T. Ali-Mattila for vocal ensemble and orchestra)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3583a9e4058fe24cd52130081064802c88cc7463b30dfe37c68634bae75392e3. 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/FINDE0500060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54fe9c0a0b134013770e534beaaa4c129bbafd6dd00cc4a4f4a14881e9be07c2. Chain 2 (Bitcoin): anchored in block 958738 (2026-07-19T16:02:38Z), 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/FIPT62100008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe74de6482f30bac4719a9b6b01069ab5cf99e8cb49b8abb560730879dfa6f2ce. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/FIFMF1225455.
70-luku - Suurten hittien vuosikymmen 40 suosikkia 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18eeca872e00c10253d73535968998ddc3ee3be3ab15dcff35dbb3784975730d. 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/FIFMF7600010.
20 Suosikkia / 70-luku / Iskelmä 1 / Jos vielä oot vapaa
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c943e20ceb311a1ed8ac9a88bbd2a21c7f8c055cd0b5c860c1a2441593a287c. 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/FIFMF7200008.
70-luku - Suurten hittien vuosikymmen 40 suosikkia 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c943e20ceb311a1ed8ac9a88bbd2a21c7f8c055cd0b5c860c1a2441593a287c. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/FIFMF7200008.