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 0xadf97824c6e643752a04953a5cdf666eb70a89fecae8c784a17ea257180bbe3a. 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/3c16b8f3-1c32-4305-ac49-7699fa418802.json and https://artists.proofprofile.net/proofs/artist/3c16b8f3-1c32-4305-ac49-7699fa418802.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 0x8f4a3ae8f7fd0531cf9efd694c7ac1335eeb96a8b3a2cf4cc46e15934d79ee1d. 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/BRPFN1200011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7fac000247428c461bac229fc89130f42dfb6b196649790c1f2f18636c5b998. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/BRPFN1200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x409dae8d8940540373cb2f9e1b896c26e95cb4cf7957aeb628e63cd4da470c20. 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/BRPFN1200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc417f9f2c3c6f4487db7501b894122e14e359ebb9b94efae92212b940d1eaf8e. 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/BRPFN1200005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35c802ba6dfd4aa9da770366a72c55fc5dea1d22493a15dfa44df60dcfdb191a. 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/BRPFN1200007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x265524dab2d21614279674d4df226b442e96d7cd764aa264c0a35cd85448f598. Chain 2 (Bitcoin): anchored in block 957048 (2026-07-07T14:18:56Z), 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/BRPFN1200008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6c2acfb3e006179d6cf4846f9ab8a29a8177e6eb975d8597d7cc645fe21deed. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/BRPFN1200009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13d08d0fa78484388c0f100953bf63db602914f229b6af33f0e534b2e198a30c. 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/BRPFN1200018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc236e91a7b2d4f1977ca986c187f508268def27fbd8bca08109b2b44b2421cc9. 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/BRPFN1200006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcf3e69f2270a923aa41e31b6c9314f9ce309afe5bdb70ecb9bc36712891af31. 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/BRPFN1200010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12e2ae54a4b7d7e8212da0e2103e12dd18aec118effc792abc576b7e40325ea7. 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/BRPFN1200016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9710bfed93c4cfcdcfc6e0acf6d15a11a5417c064514a193a912099d12039aec. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/BRPFN1200015.
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 0x1c1cf7e1dbc1e229930b6dc30a2ce72f0b045b037d2788518d6ec450494c8fd5. Chain 2 (Bitcoin): anchored in block 960489 (2026-08-01T00:40:43Z), 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/BRPFN1200012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8956f69173a280835fc7a16c980a2a10e5aa4bcf7f10e8cfbd49edf6b2af31b6. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/BRPFN1200003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96dec3e456f93897f2f1cdd6ff934e3b03a4545f0aa03abcdb07a1d14df3b113. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/BRPFN1200004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9106583f12d20698cb7f35436ed439a7caededb4142bfc34df1a246e7fbda8df. Chain 2 (Bitcoin): anchored in block 960489 (2026-08-01T00:40:43Z), 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/BRPFN1200014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc8f5b89adfff1ee39ead388acc5a8565affe9b7e969ea33042696deae396ae2. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/BRPFN1200017.
Orquestra de Mantras (Ao Vivo no Inhotim)