Ranta is a Finnish language surname of Laine type, literally meaning "coast", "shore" or "beach". People with the surname include: Anna Ranta, professor of neurology in New Zealand Aulis Ranta-Muoti
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 0x808ed43dfe361945b02d0f55e2d0b8231051f4f3cc636993fdeff1b11eb5b8f0. 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/763588d0-09da-4f4e-9241-252ca4155cab.json and https://artists.proofprofile.net/proofs/artist/763588d0-09da-4f4e-9241-252ca4155cab.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 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 0x9dac58882b5af43fc849251b82f1a4debe30492c17fb195b81032ae18f42f711. Chain 2 (Bitcoin): anchored in block 959080 (2026-07-22T02:37:08Z), 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/US83Z2119800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbad64a6918a325f591e24895a05b740efe4dc3b52e77894c0b4070740b9b2592. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/US83Z2119802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7644b3d67d78b70d1db99f15d4e565deb0d77b8ce11a04248015b7974950582b. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/GBLV62131024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50eec0ebfbc3609c5969cac6da1750b5c00086e91180473f3adc6985f0b4de3e. 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/GBKQU2327728.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe994790c1a512b64eb1e2aed926567949a50a55cd214c289c4ae358706497fe9. 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/GBKQU2327729.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7f453446040f72c227a1017525a45a153510f580d6c0d53eac5b6cdfe32a267. 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/GBKQU2327723.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacd1065997a454ecb06a18d85b415f5aef4b8cd195e7006728cca611ac77456c. 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/GBKQU2327724.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4a5c4274b14ca64103c50c54ee5b232840e0efd260cf49ba664b4077e17dd2a. 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/GBKQU2327725.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd48b205bb7e636589daa676ac71eb9cb62e17e7cb4f00386b3783319f5f789fb. 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/GBKQU2327726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd87ff899edc2b975044b72653702345bf257a84663422b27d3bc4c0244f3a8ca. 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/GBLV62319296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61d39df3f5dffcd38f6df339fe612156dba8c3bf2a819c16e77f4a0d51636474. 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/GBLV62319298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x467d292cb72940e136f73258c2ea46cc64efac3a1666c329c8a047376891fdae. 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/US83Z2466611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d1f49a58e30123680d8a9f94d993e5d36290afb540d7d7a335eda2d40dd139f. 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/US83Z2428226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb21b49c24a79cf91203b4449c3172ad5eb187cbc4f681d4f083a08a6503215db. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/US83Z2539066.