Zabol () is a city in the Central District of Zabol County, Sistan and Baluchestan province, Iran, serving as capital of both the county and the district. Zabol is near the border with Afghanistan. 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 0x8d5612329153bf908cc58f708969b14e6628b0ad780dc8074bdf3c6e3d8fb0ab. Chain 2 (Bitcoin): anchored in block 953694 (2026-06-14T21:38:09Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/71de83c4-fc5f-4b04-b9aa-75af4f7189ab.json and https://artists.proofprofile.net/proofs/artist/71de83c4-fc5f-4b04-b9aa-75af4f7189ab.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 0x94c286b2f1b9b17f230b4860273e2735a2f90767d900796d37c11b5f0f24a599. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/QM6MZ1429292.
Banita Team (feat. Egon, Kaczy, Parol, Chińczyk, Profus, Wuzet, Murzyn, Żabol, Fidzi, Solak)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c5889170ec3126b9038d490bb09f3da9202e42e9d0f99346728ae2f7f60466e. 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/PLF241704197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3d158dd7b1e669352f2c8c36346332d54adb2979dfd6ba55712753058c60489. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/PLF241704206.
W ciągłym biegu (feat. Mieszko, Żabol, Chińczyk)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40307f6d9ae9dc54d2eb384c8368fc5ba1f3cf8a91444d5b847ecf0c0cf1783d. Chain 2 (Bitcoin): anchored in block 960288 (2026-07-30T17:41:38Z), 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/PLF241704212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc59885db7ae42b6db1c74d9e9541e2fe519f08359bab7164468ba0b4740f0f34. 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/PLI367187460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01b40a0cdab1c2d6bbb969e5802cc3dc30c054fcaf574c1164da6e4beaac1f10. 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/PLS351600030.
Wzrasta tempo (feat. Siupacz, Nizioł, Żabol)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55d5d18302558bccccdb1589cc9f5be73026b4391ee6e2ee87eb485af938b8f4. 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/PLF241603535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0eb20e3e5ed18bfb51c76359b6527af3fe23bee4b4b7a6ae55193496fc800ba6. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/PLF241603544.