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 0x6fbf48750ca313a532ee0490cbe0a45c3135b7617f6b90378d499b7921f6955d. 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/7481bfdd-1d41-48b0-a7c6-b37c96917085.json and https://artists.proofprofile.net/proofs/artist/7481bfdd-1d41-48b0-a7c6-b37c96917085.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 0x1c7976865965b9369fe236fe3e1602a86d63ca70f2e9eb6023fcf34a8af4a0e1. 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/ARIXB2101807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3515b8e7d817b2703b386334e54ef37d2140431c5a50532ef7b85951767bad75. 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/QM3DF2004112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2a8c839fbdd21067f3ecb22d748fa83ab0b2a183c25b7b865d718cd1af16965. 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/AR5UH2300036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc330d1c0ce40217371a297321a168cfcb4cf7a12d98b5c7c59c0655b623c567c. 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/QZNJY2132839.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc37931bb381e22916eafbdd9e9610e35674dcfdd061b75ba8957fa4b8b39c5bc. 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/ARIXB2104426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cdff8ae4bb48d3fd31ab2ebc21734705552b971f7af8a7f5386d3fd92224818. 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/QZHZ32158862.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfbe1ac44e2bc4c1be6a218d67780fbc1bf7554b70ac764519f6bc9dc926417f. 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/ESA012146512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76d295b52f043be78e7d2cbbcd5bb8616cba59a1c727684818c4e78a2846ecbe. 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/QMFMF2050221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89c37b704b560ba167fdfba99a6d652d3a9de805b259f8082561a5236de51396. 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/QZGLM2071993.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87b73b66ae5db3c43e0ef82250ca8e69b2953906ab049ea3d52a6e1a526ba681. 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/QZHZ52086367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57f0f4559fd232507714c0f5c568511939b70905cbfe2590a16abfba8f794f9e. 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/QZHZ32095973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0447c6e0298cb9e2217ce0af3aea05a7e7f54f5420bb9f12d29cf5a99ffd2d32. 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/USUM72008023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf8929c52e1743800908d65abb79f4a5007c737b61f57a9c8ea0bdc1f1897904. 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/GBSMU7781159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7423f9efb9b6f0270032f6fc5bdbc758c90b5b80adf80a860a47381907018205. 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/QZHZ61911714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11d6359b9da69352153fffe634b43b2fa0801b1aa84749d0b4d8b92502f4a258. 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/AR3TA1900002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x911c42c53001382a3c966a31789e3138b6e0cb76a1def0b31fb759461875a195. 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/AR3TA1900001.
Blunted Vato: Bzrp Music Sessions, Vol. 4
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23f34660b7ee9e61b6301dc50b7780aa226b957ad0f5a62af514bccea7522196. 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/USHM21914345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0d7022b59e26b16b6132479a1fc36a628a73f75821de3112c11e12faf5c73b0. 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/QZGLS1942741.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d3cbe40e899cd654810f5f276cce52c7bb1ed045d434cbb408632c2925cbc40. 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/US7VG1901345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95fa24dcd72a6ed7aa4f756200095ba879f126d5fff9795a44a8a5763aa66ff7. 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/QZW9K2384914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a9918a605dd19781b18d2f865dbc242f01bc71737b133b2b529c8fb88205c9a. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/QZW9K2384917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb94f91ef1acddd879f7762aff1dd629a5a864288f64506f4c2ec6c87539c557e. 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/QM6MZ2547807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5452413ca5e2aa2c382668ed7e4eed8ae9f7efb206093024fb7e82c9b8414d76. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/ARIXB2500664.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x159f3b163f047c1896c2b5c0beb46fd40c1121dec3c5f431711d34d095305648. 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/QZW9M2472341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94271c804f2bbe247b01813adb3984199c68c0bc8c7335a750bb0e06179716cd. 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/QZW9K2462390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5df2caa1c6afac5986eb33f9678a27fd30b0089a63231e32e3a3961075422780. 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/AR5UH2100101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5ccad433515e48957926b0153dd3b53941faa5d38f3d009660ba2668633761a. 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/QZHZ42047287.