Lasta (Amharic: ላስታ Lāstā) is a historic province in northern Ethiopia located in the Amhara Region. It is the province in which Lalibela is situated, the former capital of Ethiopia during the Zagwe d
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 0x7fd8391c823ff79848b6116f8760630072f822d901767928efeb78f895130720. Chain 2 (Bitcoin): anchored in block 953636 (2026-06-14T13:03:42Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/370dac74-2358-4d90-9998-8d72f2329cfa.json and https://artists.proofprofile.net/proofs/artist/370dac74-2358-4d90-9998-8d72f2329cfa.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 0x9c51732b5e57205e0d22b161420d71ec058c3e19a72033c38c666d5808a138b1. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/AEA0D2027743.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab77c20c1b94be2047108369f62f4ab9ff645e9da73d01cdb898990e390e390c. Chain 2 (Bitcoin): anchored in block 958329 (2026-07-16T21:48:38Z), 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/QZNJZ2197744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd67c10fc5cdb3ad83a89e6c4cdae6662b26e8a5d825939b6188867898cde04b9. Chain 2 (Bitcoin): anchored in block 958686 (2026-07-19T06:43:29Z), 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/AEA0Q2279717.
LASTA - СІЛЬПО (prod.КАЖУТЬ ПОДЕШЕВШАЛО)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fe0ea157c55b4c932909ef32c233fc2b55a05a5b78c58eb4c97e04bda4f1688. Chain 2 (Bitcoin): anchored in block 958523 (2026-07-18T08:54:12Z), 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/QZK6F2545531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd9e19d1464919202b983dfbeebc19093471f5bdaeba300a4a62baaee9ec310d. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/QZK6F2545532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7ac7d26442084119d9f087c9a205a487e2a16723900c83d184cde4fc8d9263b. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T17:59:52Z), 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/QZK6F2545533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f345f286791f166f570ef83ce054bcb0a4e65e1a98c9bafbdaeae3d271339a0. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZK6F2545534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36dd31a745808bc395ed54e7317515a77b4a71de10029b4ff993f531d1ecc7e1. 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/QZK6F2545535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9eada254492b0086e0d9061eac78185af57f9887de47861177001720cfb5f83. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/QZK6F2545536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb49f2d848a1a3fc10d99509d3b9758ea2fb9d4380592cab21a1de7efb1c6b8a3. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), 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/QZK6F2545537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe223de711dcda9028427aea77cb8301e8379d2ba0fb287451cac6c3038bf4968. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/QZK6F2545538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37bbe967ba3baba09889fc8766de8525ec268f2ac77ab0f9c7096b234ac1368b. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZK6F2545539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4c9ad114d4ff65ec6842dbcac5f0b455dc62d99ee573fb5526d9965dad6e59a. Chain 2 (Bitcoin): anchored in block 959084 (2026-07-22T00:50:00Z), 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/QZK6F2545540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14de51f5998137cd6fbe25560dd244eca2b2fc1ce04540a82df4429ca5cc32e9. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/QZWFQ2574743.
Однакові Сни feat. 4erdak (prod.Swipeex)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe56b60bcb08a1040d73339ae066f2acbcca54872596deeddef944f1a3b5f4c51. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T07:19:23Z), 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/QZWFQ2574744.