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 0x888ae1d33c66176fae62ae4b534a3a9f6dfe38b2fb1f003ddc97d2e51ff0883a. 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/b64ce0b2-3355-45bf-bf1e-a29927f3bc2b.json and https://artists.proofprofile.net/proofs/artist/b64ce0b2-3355-45bf-bf1e-a29927f3bc2b.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 0xdc4a38f9f9226f47973643e61e0c6c27901a197f9e8a0b0a0a4bbcea0a0274ee. Chain 2 (Bitcoin): anchored in block 958121 (2026-07-15T08:02:12Z), 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/KRMIM2161229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7618921ab6cd1b420bb4dc2ce80f302dc8422ab889b451766134f87d2b840b76. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/KRMIM2161231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b9a7c480a804a6ee1de8520ef7d054e0ee1ced346cc36bfb2122590ee1104bb. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T05:04:58Z), 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/KRMIM2161232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd26f0d6b761626f4ca57d173039d255c520e0fcf7c8f3830d000913373325da1. Chain 2 (Bitcoin): anchored in block 957867 (2026-07-13T14:55:20Z), 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/KRNAR2205056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cdb373be77e9eb18e4377745478de0ddfd152f7680044c6a3de8f8b1292cf3b. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/KRNAR2354870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70ec2d1b02b501f30b0f5c0ce6bcd6eaadf728343351bdd8df44b7eabf756964. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/KRNAR2353722.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe96d998c77f4f63ee596a1236eaf683c6bf403845b1fd0272f7d8b8ebffb85c2. 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/KRNAR2354872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4842d46e40dc784cd920e02f54c77fd4a9a9fbaf6d71e97439490a498e7afbe. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/KRNAR2354873.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe9c1772b84ccf6a4298f72ee2fc2153abec261b5940a3d61fe3f9d890be4a05. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/KRNAR2354874.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x633622079e0bee39b4b074f7ecb3af945d7a53ce1bf0e37d53f3034dbfe9ddec. Chain 2 (Bitcoin): anchored in block 958722 (2026-07-19T11:03:50Z), 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/KRNAR2354875.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0feb5d795927cbaf84e3b30001a6409b2bef13db6b1900a07af9bf9ad11a1778. 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/KRNAR2354876.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c5a91dc7c065c4375e85766c96196591d40a1d81945990821cc7d2407464b05. Chain 2 (Bitcoin): anchored in block 958644 (2026-07-19T02:21:25Z), 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/KRNAR2354877.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5200b8dc9c82a62eada7f2860ba720e28efe7d9e810ef09f2ce9434be4073e43. 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/KRNAR2354878.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf09ada9ebe1238bc939c59180cb3de61ae52dec07b7476cf4a390e2e9b316f58. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/KRMIM2441498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45f4d408dff286e01981726c0a2b38bbb3a606221d4200d28612f6f35e334eab. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/KRMIM2465421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x274e529c5effa3eb5191c02910efa73398610f8ed7fbb7fc45339fac195f2313. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T08:51:04Z), 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/KRMIM2465422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5035b6f14efe01616835c79b07ee458b651fa67c3300debdfafc3b4fe9a4b29e. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/KRMIM2465423.
The Divorce Insurance, Pt. 4 (Original Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef2fb114d84718f270f7567e1c4f6797588fe3ab4f03e4d217be1426f95702a0. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T14:07:48Z), 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/KRA492500267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe285a26f59ff013755e35b2b03eec242d115cd2eb135344978922493471b11a0. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/KRF412500243.