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 0xe889ecc8611d7620bd0306140f540a1645c64ebee95f2b9702721f120a66e622. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/00dcfbde-82e7-41ef-abc3-30f77f57c434.json and https://artists.proofprofile.net/proofs/artist/00dcfbde-82e7-41ef-abc3-30f77f57c434.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 0x4fe1af593fa6019a9bd3bbdba67ea4b06903bdbb9fd0579633fbea02c06554bd. 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/FR96X1880899.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d712534ba87cdc1a0879c1e3f083c21f5807bd14545b0cc2bc0b08602517ca1. 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/FR96X1880900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf66a3845cf71fa9cbdeabc4cf2e328fb62524ae75d546482e6c977fbd71fe55e. 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/FR96X1880901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e999b7e31a2c368114472d2f01a1c81c28ad70d1a638a7f79cb69d36ba50a5f. 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/FR96X1880903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b511e4e72a6431cbe7de8ba5af16edfaaebcbabc82ddfe3d069c4748ceab568. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/FR96X1880904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeba739ed25a4e95cec9ad4436aadb2d2a614a12d1fc54fb6b52329f0efcdb55e. 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/FR96X1880905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb9e7560f05ce7b928df10b668af0a31beacdd6e03381127ad2384cd94af9cb5. 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/FR96X1880906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32a96efedf33db13cff381aa016a21faff3052a4e8f64d21c44bcb291938454f. 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/FR96X1880902.
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 0x960b591f9d084849266f916ba785c825d30a7126dd47a9544bd498a1b04c1241. Chain 2 (Bitcoin): anchored in block 960300 (2026-07-30T19:42:40Z), 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/FR96X1880907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2001fb34e37de7dc9c6d19f4cecaacbfc9d0d81acdecc63c5a6d4fa77181fac2. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/FR96X1880908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d23cb6bdea7f79d7b5952193dec9748141f2372b4a129b445aab8bd8380b127. 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/FR96X1746583.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcd1f8e1c506e0f98aa1ad2202b4522b101e6b936b768fc9757524c932b23ea6. Chain 2 (Bitcoin): anchored in block 957820 (2026-07-13T07:54:01Z), 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/FR96X1746584.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7a5b74f25fd961240bf3bdd7367aff552f7e0b5fed8da8347ca6d43208a3ba7. 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/FR96X1746585.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c65d9d3375820139a902add6725dbd967e4c0b3dde814a12fe26c463c88cb59. 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/FR96X1746586.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x087f1feac45e645f804818598e34df81ea4b6fa53d99a7944859a06aac8ceadd. 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/FR96X1746587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f488117c3a8531d56e8893f8d17b5139771beb497a55956c00fd70d4c88548e. 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/FR96X1746589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fd1feed860ae8014618f3fda64ddf429fe8148e2632d46d6c09026eb7887888. 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/FR96X1746592.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51ec05b19b9ed8791f8b58ad5afb78686bddec05593a8a14433452d6d41af858. 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/FR96X1746593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b41c6d4b27891548baeae5533035bd5891035d9337d3503ccb4ae5f9c43743a. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T21:01:54Z), 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/FR96X1746591.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd53c600f071d1a80fcc4de5c95ff8bb2ccb171860283bf916f944244cc4b8c43. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/FR96X1746588.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d2f7987d20660249bb1c432327a6632a945e5c0c024eb900e8f2351b6d63991. Chain 2 (Bitcoin): anchored in block 960296 (2026-07-30T19:11:09Z), 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/FR96X1746590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ca20ccf28a5a0e637605588d2ab5a3c0bb8c155337fe8f3fc83eb5cb61e5be5. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/FR96X1746594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x320fc5026b0654a794c4eff2832b6d70373473f86016726b2c345f3c502ee51c. 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/FRX762020392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd42c95f2c3e3752fe8d998c149227a9c4fde5e9e6c6581071975f26556697840. 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/FR59R2089867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f4f31ae7bed9b2ef51bc8392088d801a642378916937cf7198bcbff21e734b0. 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/FR10S2094485.
Konser Ritus Manner House Harmoni Sebelum Tragedi, Vol. 2 (Live)