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 0x2dc0e559bbf8d5981b100921917840f97cc133c5a5477267105661e840d2d185. 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/7982c972-4433-4991-b4b0-8643d51a88cb.json and https://artists.proofprofile.net/proofs/artist/7982c972-4433-4991-b4b0-8643d51a88cb.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 0xdaa880d693cebdb7f07dc0369e241abcdedeee80b4c6b7edb76a64ec4fcca438. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/BROCF0100320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15c83ebda8458310812e5b88ea4714f7b8c2d816709fb42f6c0b718fe577e40a. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/BRJPA2201003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fa0e648059d4dc980b786dfaea9a0b033d973b241073ef2f656eae3a6be975e. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/BRJPA2201009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a5f4fc9038e838c4599e18772388a063cbf7fc2d85ad492765f6ea9717f5c0c. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/BRJPA2201011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbe56e2554e31c85882d05ce5ab7b5179ff47f2a6345b6adbbf3f32094b7e582. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T10:46:00Z), 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/BRJPA2201025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42b9d08a5abccf6c6c7cbb31f0c314d38ea5bcbed1775e6235d049c83785c151. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/BRJPA2201030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x028ef906260aadd614729d45311dff1097bad05b334ec0409c668c5e883e3096. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/BRJPA2201036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28225535d55ab78f5d9925cd08b1ca237e3c83c53f819c189a6ef58523dd5bc4. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:42:26Z), 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/BRJPA2201037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x121413847edfe048a68c1e196cf763ac2f4a4cf19edcc648ebfd9f0d20ce66a7. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/BRJPA2201024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb02dab4e656e852043a589fda4d84940c66333b600b3f86f606813ed12124e33. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/BRS351700002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc08adbe05f6c5f8bc3d1e671fadbd0bf2c71eddb1786c1d0f11fd62acc3da399. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/BRS351700004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc850356fb29fed3513ec3585b21f1761d97118ce91700e797ab386b0c31caa5. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/BRS351700008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba21735aefbf7aff4ddbecf8eff2bf381038817618384eea85a502e4c7c84871. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:30:35Z), 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/BRS351700010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x865122aac0157c1b6c54b63d258dde88c894f0d8ecff2c10dc90779c5c368428. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/BRS351700011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0db727d59c7cf0920b08bfef4e18ee82509c868a1d91aea57faac3d692546d62. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/BRSWO1600001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c647169aef8c6b6dcc01a4add1c232fa61657cd2ce35a1f3822b7e582d85c40. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/BRSWO1600003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e97db56c2a8fb76d2d5ec4258f3f792bdcb05ca05222151c449dc4ec11f58fd. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T18:00:42Z), 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/BRSWO1600006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc00ff091681f1af012386234ad06095325d3dbfe7056ac93f402ece183c039b5. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/BRSWO1600008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb239e7b3901dd8e843d4b8f6d281dbf08f894392c06cae93276af14f3751af82. Chain 2 (Bitcoin): anchored in block 958908 (2026-07-20T19:04:39Z), 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/BRSWO1600011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x204487985c0c83ca5aaed8e4e525c3227184fa33f7d641163f141bd3e4a5e82a. 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/BRSWO1600012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c5d68aca834aa162158e7e81feabec6099d565fc3330ca5f94e9d12843af5e5. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/BRJPA2200001.
Um Abraço ao Ksarin, Ksarin, Ksarin o Azulão do Tocantins
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde3fcd4861db67750feb46f05b30b27e71e5acae8f140b0e4935366869711007. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:46:48Z), 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/BRJPA2300048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x270fcbb82bb5c79df3fd3e77cf9025c055c0cff6e0795ae20f22060a9c877c09. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/BRJPA2500104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9daf0e403a3a1818644b15b4b341be5bf2fb851e4d37d58c8d1e7df1cee05b56. 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/BRJPA2400016.