Leni, Seppo ja Vuosaaren lastentarhan lapset
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 0xafcd7b1bf50961a5cb747683d6e59df849330043acd279930949938a4637afd7. Chain 2 (Bitcoin): anchored in block 954043 (2026-06-17T04:15:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3fc2bb04-65fa-45f1-82bc-e7c1a61f1206.json and https://artists.proofprofile.net/proofs/artist/3fc2bb04-65fa-45f1-82bc-e7c1a61f1206.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 0x3575844d72ecef0be9bb05edb7515e486b5aaef016e07ad2aaaefcf9bbe92ce2. 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/FIWMA0700517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5cd5e8b2231e49da61d84a25c2b66aaa48f591a78ebc3d9cc9eafca160d9d68. 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/FIFDP8301300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee26f8dce786d9a5e9f608e9b83d807957ae97b0a41d4c818dbff27184895b48. 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/FIFDP8301400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0365b21781f8bbf3550baf8a52cb5f8c87e1fb97ca851c9e0d5fb0b669feae8a. 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/FIFDP7900002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5d629dfaa8962adf6358908fef07a3756737db0424b09fc379c5c40ea3db632. 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/FIFDP7900007.
Saku sammakko - 15 suosituinta lasten laulua
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb47ce02adc0b7084d7fce7462b9f43c45bfde137ca78be3bac841e32fdfe5858. 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/FIFDP7900001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46ad39c88c0789f52dcd04cf8aa372bb96acc203d5895fd03ed2bb3eb9cfc010. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), 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/FIFDP8000008.
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.
Lähdetään Korkeasaareen ja muita lastenlauluja
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefddc9a9eabe6809d7b0866e72e95ada743a5e801e04382a77c895456cba7232. 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/FIFSC6001700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78e5b09225a116f3974c33ff9ea13b0a509c398c950bd7bcb2aa981944af88c6. 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/FIFMF1230121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8af20da2eb8911fd642457c9eda9a94bc340712946268db7331b58d27fdd983. 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/FIFMF1230122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a3d454bf233c95a87956cb6acc6cdd869893e9d3d7e519d6ecd81080c16c860. 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/FIFMF1230125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x101f87ff023a47186762110dcf8024522d0a60c562b6ec61f7033b7982ed88fe. 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/FIFMF1230126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc62dfedb2e44707d10ce058d148baeb0cc35f805afd5897263cc2768078a509. 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/FIFMF1230134.