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 0xa8da7f5d2d726a8b614fc60fb7239f9aaf08fec614925508707967145d851cb4. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d84d47a7-9eb5-4d6e-a717-0d902ea76a21.json and https://artists.proofprofile.net/proofs/artist/d84d47a7-9eb5-4d6e-a717-0d902ea76a21.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Iskelmä Suomi - Kymmenen tarinaa kaihosta, kilometreistä ja iskelmästä
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 0x37240f2d94c45435aacaa3f02de056c7fcbfce7d6f550ffe7b97829f29aea401. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-22T01:05:13Z), 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/USNPD1226967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x466b1127969d2e95ef36c51448543cbe3e27310a93f8942940f8581d76d8f82e. 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/FIARA9500158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fd12da3cf193f911ed33c55842e6110fa3cd857aab18fd9f2e8e9042b5bcae3. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/FIEFE0700689.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x441c3dfc5ce118f984c739273b1b9c08af34b9bfa4190c9328ddcb022acda903. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FILKA8200102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x313a850bc8f2b89d870874238148e9c3f48d279b98500dcd95b4127b306993fc. 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/FIEFE0700688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1c4c49b5deb2042a82997205d2d877843fe95a59956c743b3a092a099ea6099. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FIEFE1100216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2caffa76b98346d52946a483d792ab68f060134fc0adff7c86302afd4677da9c. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FISBA7400076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x240439e1a974f88da669966297d3d9ac260233babf411a622b2b7bc0abe18062. 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/FISBA7100188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6846b26ef5d4030199c66e2f63142eea38039ecdcfe0defdf40e57c7b3f88330. 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/FISMC7900024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6846b26ef5d4030199c66e2f63142eea38039ecdcfe0defdf40e57c7b3f88330. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/FISMC7900024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x195d18ba3a46e33fb594ff1335bf640333b518d678ac1c55c1f7f9e8e7dd9ec4. 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/FIEFC7300010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48f39fa8f808f3b61015b8fbcf0394c7750cb0eb1479a81299d868c33e471802. 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/FIBAR9900004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4567663896abe9ee934a9b829da2694e4341cd1e2cb952bbf61d84a92609fcfc. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FIPFP9900128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d2d6261780eb5982aac3c4f08d10263830ce85de2645b5795b2fd2de5cecabc. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FIPFP0300139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x935a247662b213965898d4bfd8f892c4bfd21c0a802b59e7835f574d734043bf. 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/FIFSC7300400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44399a4284ab3b3e7f4e9f890ab6dbcc549b4bc2d489eca0cc4a6e12d3f188d4. 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/FIFPS3700001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb0f65618bc6c3cb36828e616b849a80193e8f3e0a909d885e89ffdb1c9097cc. 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/FIFPS4000300.
Toivo Kärki - Ensilevytyksiä 100 v juhlakokoelma 1
Veli Lehto, A. Aimo ja Dallapé-orkesteri
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa911aac0eae50f4cf7fb3f052a0ba64ce35b0a32d54c83b49dc4ce4c01333751. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/FIFMF1233160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6aaab42ce1c9e60807626251f22974afceba4a7438b7c71d1219de4a5c1445b1. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/FIFPS3800003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0ae01150728d1d97a165cd61f9e9ddbdc5515a510bad2e88443cb283a45608a. Chain 2 (Bitcoin): anchored in block 960503 (2026-08-01T03:41:24Z), 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/FIWMA1100858.
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
20 Suosikkia / Dallapé-levytyksiä vuosilta 1930 - 1940
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4a54d4970c14e8e15707908e175624d54699e3bfbad12c1031d2404acab6b7c. 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/FIFPS3000002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe79b4c60c81ee88ac9cc60055e72829ad38e7427d26aba13ceebeac7966022ff. 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/FIFPS3900001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ca1c3f645262e448e7b5ea945131e3797e327007946ff031061445d428d9478. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/FIWMA1100842.