Laranda may refer to : Laranda (Lycaonia), also spelled Larende, an ancient city and former bishopric of Lycaonia, today Karaman in south-central Turkey and a Latin Catholic titular see Laranda (Ci
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 0x0ba6426c301bc671ccff23fff952b9815230928c8bc034e9a953414ff0776bf7. 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/29178928-a11f-47c8-8ec1-a3caa9753290.json and https://artists.proofprofile.net/proofs/artist/29178928-a11f-47c8-8ec1-a3caa9753290.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 0x1054c87742beefeef971b29ca3c9694144e5c2756211b16396ffb5f141fc8765. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QZAPG1847153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x648d2905e9ed048799657f86a1ebd05b3a013378e3ad1dc753138b68b81c12f5. 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/QZDA51878993.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a794eeeee96a0b50a0454be9f061df52aac16ea9d92eb2d0368a001dffab60f. Chain 2 (Bitcoin): anchored in block 958800 (2026-07-20T00:52:19Z), 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/GBMA21863050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a794eeeee96a0b50a0454be9f061df52aac16ea9d92eb2d0368a001dffab60f. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T13:14:05Z), 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/GBMA21863050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0840c27eef37dd7994c4a3cb201d9758f5229d0310e632bfdffee047b0131b38. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), 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/GBMA21873858.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x680f2bfb03e321786b33e9b3c0ddea615c979b7017a789d8ec23e5688fb5e7cf. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T14:03:35Z), 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/GBMA21874454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x680f2bfb03e321786b33e9b3c0ddea615c979b7017a789d8ec23e5688fb5e7cf. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/GBMA21874454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30c6a0aa5c6000b11bcc59c0325099ccb5bb0507aca50cfcb4584a4f25aceacf. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/QZMEN2433587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf167f858edfa48606e169e7f0f51c08d33b4b6d5d19a15b3b08d2cdc926aec34. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/QZTB52440494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ea55df65034c12d0b58bca1894f45217e1adbcf783373fb24f718774db96fd2. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/QZES82529566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c5dfb0cb61a391da338e976a45d253260e9c6f4acbe488c0f7c47890fd6cb8c. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZHN62542382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9ed2d43996d916a52a68f836892714156b5dbc977ba148144780c5a7e319dc0. Chain 2 (Bitcoin): anchored in block 958596 (2026-07-18T18:42:38Z), 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/QZHN82597527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x639369cbb3b01ee464aac87a84a89af127a9ab2b0f17fd2d37b2e80f8c84b17a. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZ8WX2051374.