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 0x3a94d93139d69c44864554cd075351029ca83578a48454b7106575350f1d2f71. Chain 2 (Bitcoin): anchored in block 953899 (2026-06-16T06:37:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/103ca23a-bc78-4e44-82a3-0fae6710a048.json and https://artists.proofprofile.net/proofs/artist/103ca23a-bc78-4e44-82a3-0fae6710a048.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 0x6d35285a5f748d2b6ace84077811e90bec72c8ec286a2f9dbd1995059408e377. 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/FIKFK9200005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecd20c73a14271b07842b516b282aae32f9dd201776242f27826b249b19a7d9b. Chain 2 (Bitcoin): anchored in block 957032 (2026-07-07T11:43:09Z), 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/FIKFK9300004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e8ea2432a086304a236bb11768e6444f99baceffd90e1fa5a2ceb8ec4b91989. 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/FIKFK9200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5271ee559719387b1f731802c017aa2798941965732d9591d8271545e602790. 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/FIKFK9200003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19312788ad101d81dea45c86e66b4741a46ada393584dc1f638f6effd303c8fa. 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/FIKFK9200011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f0b53f3aca1a790529574012e6ffc054740fa6ed457c535052fd261f7286697. 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/FIKFK9300003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb58928348e801a777482321017b118b88d2f3ce2ff071c38ef43eb3cfea4f16c. 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/FIKFK9200014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x544dbeaa0bc30dfc7f75ba417de0f2dbf3ddb352bea73d5f149bbcc6bb480c6a. 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/FIMAP9500012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ae973aefa2e9db53d54173c32c30109e58c3da5b6ac0aae7e272fdce38544c3. 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/FIMAP9500015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c2ccf04adedc219bc95fda76b8f1f6ebb14f6b14c49742f253baf7e940dd2f2. 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/FIMAP9500003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f45d6f8eac0842ba1d88bc54a3e90831ba61716b181460a24e2b78e25deb5fb. 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/FIMAP9900001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x388b3c173abd905eaa36e4dd4eaefa5c089d23c8043f54c61a97c87391b36635. 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/FIMAP9900003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x106d288872534bd11bbc810290c4e570a678ff26af5bdf5ca599da8c159df455. 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/FIMAP9900002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd31feddb4be8028ff001b5040c350532ee3963f88b9596e4f6f7bbe5c3226d0. 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/FIMAP9900011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe628554fb5e69640e6c973d8ef085a5dde916b6040a8ac6605681e4b16ade98a. 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/FIMAP9900012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x544dbeaa0bc30dfc7f75ba417de0f2dbf3ddb352bea73d5f149bbcc6bb480c6a. 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/FIMAP9500012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ae973aefa2e9db53d54173c32c30109e58c3da5b6ac0aae7e272fdce38544c3. 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/FIMAP9500015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x078a2ceb63d3986229777aeab6ea6104aab1c454c39dc31652511d9c39db98e5. 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/FIMAP9500018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe9a4ad3a2e8865abdbb546a9d6c794a2faf80533714cb3d1de1f06e75e4b26b. 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/FIMAP9500019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e16062e9e5dd808a199211a1fe8c3d4550e7de9146f4c2f27adfd732eebdb5e. 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/FIMAP9500002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c2ccf04adedc219bc95fda76b8f1f6ebb14f6b14c49742f253baf7e940dd2f2. 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/FIMAP9500003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a40b2f3982b27ed21787036ecd7cb67fdc32c75f9059ce150a4c4b5052f6f62. 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/FIMAP9500017.
Niiskuneidin rakkauslaulu - Instrumental
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb4b5f6ed84860305b6bcc64cfa4198061a952557dcefeec72c099664cbe6fea. 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/FIMAP9500020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x388b3c173abd905eaa36e4dd4eaefa5c089d23c8043f54c61a97c87391b36635. 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/FIMAP9900003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7fe404776e2f0a794a1414bce6170bcaafb6b0a18b77d28a9646c2ebb9fbc20. 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/FIMAP9900009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe628554fb5e69640e6c973d8ef085a5dde916b6040a8ac6605681e4b16ade98a. 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/FIMAP9900012.