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 0x179ab5b222130954de093cd76d39d65cb9ab9a72b0e1c19fe1f863b3929a6859. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6a7b144a-4d3f-4ec9-a44e-da32e90d0c52.json and https://artists.proofprofile.net/proofs/artist/6a7b144a-4d3f-4ec9-a44e-da32e90d0c52.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 0xab807acfd3d8622f6a01070e4e267c6c163b087838a8985d9ecdd8689a6652be. 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/QZFYY2309095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x308abea5f1ecc96f15ec987c3dc678a063d2d586358f17cc7189f072f3978860. Chain 2 (Bitcoin): anchored in block 958752 (2026-07-19T18:49:36Z), 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/QZFYX2332493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31461f12b4cd27567ff17b01df05202539443ed4f8096fcf67caa5d14ba2603e. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/QZDA42344127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5999c55caa9928c977bf4ec9d9b7440827ba402ebdbb96db9d8b71343ea0e90. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T05:50:22Z), 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/QZNWR2358400.
̶S̶u̶i̶c̶i̶d̶e̶ ̶Y̶e̶a̶r̶s | nostalgic years
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7a8307a753014e16adc8fa0c144cb9c96cb4ede090725f8758ac79ae0f5ce3a. 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/QZFYX2474641.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a7c819195aeb0011a8cf6d1a3a8fc10db6f9c94316561b8732c8713dc0df5fc. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T18:38:06Z), 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/QZFYX2474644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4820b7548a887ab35d7210c156e6134b7d21ec211e2a5cb882b4862753164212. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/QZTB22403497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb749fd756a4284f928ec85b49b74e1361e16003a4b64b8698e2df16ad475bbc9. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T07:56:42Z), 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/QZTB22403499.
everyone who hurt you (каждый кто сделал тебе больно)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e0d56b4af738f44c984c0c9ea8b1e865691c926537d0ff996bb90c5df04a97b. 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/FR2X42588669.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe811800dc340c1f21bc2bded74682beda2c17d1923c57e1ee1815a0c79eb8b91. Chain 2 (Bitcoin): anchored in block 958384 (2026-07-17T08:27:02Z), 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/FR2X42588672.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79627a0b514199e75181a252b42b3bab0f3c76cfabff4a3a0f65f28641c1d7a4. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/QZNWV2520949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3b567af16a60da440684f460d4af8a4023d83a4fb54fdc3864f335dbb3974d2. 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/FRX282551557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa49e9127fefc81e630e6ce60ed80eb9d54b733e9492f748b34c37e466373aa63. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/QZTB22571949.