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 0xb4f0061e261bd20d8079ed735af0f6704642ed63f5a404c5d39f27f87ff2e61b. 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/afd3038d-926f-4b70-b117-47422f90e2b2.json and https://artists.proofprofile.net/proofs/artist/afd3038d-926f-4b70-b117-47422f90e2b2.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 0x370ec75ee0ee1651161efcf4a9cda60fe38dd5a8fe7476a723140fcf28f2f607. 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/PLA552200207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x932970c3d0f966961ed58dcb76237db1808fd8eac80669677b1e6cc56d6fa7f2. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/PLUM72100464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73fd61d59f34a954ef4cf084ff89172ac56de04281d8ad45c5204dd98a97e126. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/PLS282300087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e8e1142466a02920929b77b7e21847b0c49f78bb933d671e4552724e7235e4a. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/PLS282300145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7102f8fcd6c81a803ffee3210b7adbf89bfc746851a2e8c1a296b0789e18cefd. 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/PLH181800612.
JEEEBAĆ ŁAKÓW REMIX (feat. Otsochodzi, Te-Tris, Włodi, Tymek, Wac Toja, Teabe, Mosad, Fokus, Abel, JNR, Dwa Sławy & Gedz)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6776218b8ac2a1f518b79ed8135f56da547df0d876b47855ab09834465b8b2f3. 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/PLH341300511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x370ec75ee0ee1651161efcf4a9cda60fe38dd5a8fe7476a723140fcf28f2f607. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/PLA552200207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32e4ed7ed224b470c12194f48fb8b7a497fc044b7f4997cc899399dfd636558e. 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/PLA552100478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9b6c7fdc4052cb6462d12e895c5377745994db7bd5ef2863b8663d426e4a59b. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/PLB382100068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32e4ed7ed224b470c12194f48fb8b7a497fc044b7f4997cc899399dfd636558e. Chain 2 (Bitcoin): anchored in block 957067 (2026-07-21T22:49:18Z), 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/PLA552100478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x881f2a6738b39ab116e33756701b999ee7cf9c9f15740f901878fc0a79196331. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/PLUM72200314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64076fdc7e0a9aae059b4c25afef336976459314c5b6e5f3d1ce71e68a15d5e3. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/PLS281600060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0f81b395c781b9343bcba788a85220a6fee40c1b5206306333b8aa542c3c577. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/PLS281600034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a4fce0fb141bd7b8c9a436af2566e97eb288b8f38f3552a5788cf8f5e3e315b. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/PLS281600073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73fd61d59f34a954ef4cf084ff89172ac56de04281d8ad45c5204dd98a97e126. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-21T17:12:33Z), 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/PLS282300087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0f81b395c781b9343bcba788a85220a6fee40c1b5206306333b8aa542c3c577. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/PLS281600034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda0667b2ec5edc781db52a4810d640b07e48b568b21037c6317490e63bab3eaa. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/PL59G2100157.