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 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 0xe79d5e4ad38e5dc17fcafd14f2314e3de46afc2b26fa3319eba08e3de75ad168. Chain 2 (Bitcoin): anchored in block 953773 (2026-06-15T10:40:45Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c95e53fb-fe45-4922-a759-b006de5dddea.json and https://artists.proofprofile.net/proofs/artist/c95e53fb-fe45-4922-a759-b006de5dddea.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 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 0x3b88cf26b4f8f13bf5524a6be3bf68948735e73c75219d019bce7c5ca178b50a. 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/BXAZP1600048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7227d589cc82a10210d4c887c6e2a4399b5ca7cc77083a16017cb0e004f3524a. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/BXAZP1600051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9eef504d93d12c74c0dacdcfb5d3a2d917f5f2a1011029ceb64e01b02b2e93fc. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/BXAZP1600053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1a1ba8862b732fa51a0aedaf4df9e68605b2ab36ef3a6e6fd7e2819423099fd. 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/BXAZP1600055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bb1a6563fdabf536c06c70e118302544adf218992c0e6563795b732694e6cfb. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T17:59:52Z), 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/BXS8W1900006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a37a20c14d55aa71cea168abeca14bb4256c73f2e15bcea3a2931273a8aa1ac. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/BXS8W1900007.
Héloa no Estúdio Showlivre, Vol. 2 (Ao Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda6b0fbd494d62a92957b52cfe51ee34ede07bff3ec38fba4b6f0113320d3996. 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/BXS8W2000004.
Héloa no Estúdio Showlivre, Vol 3. (Ao Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08e8600cf4eb9fcc19a63ec8be2d9200d09f577eab90101d630cfc4058e9fc8c. 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/BRCA62100049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cdea3b9c9dc2907a78cbe92b53183390575cfbac07b9521614ae33f7e066069. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/BRCA62200030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a33f7257928fb2d3cca67228cb0f940f91ce42a4460e840f42782e6cdaba80d. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/BRCA62200027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9572b0afd25a7820627af382a1be6afabbbb11ce51f0c572671cce3bf431c251. 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/BRCA62200026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x922635b3f41853408c5058f9e58f0accc5a8f9e6a0adacf493645ee85d84b98c. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/BRCA62200024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef1e37a20f34158fbe10acc8eb5d86d56dcc9ecef4e802982d6d7072109f3ad3. 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/BRCA62200003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf90964b1fefe078d21e274af1c6ccb03408453e59e124125785e107ae3f6019c. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/BRCA62200017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cdc1088a55e64dc965498d4602111f11605ba08decc4d0b0c06446a83f1f350. 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/BRCA62200031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc3eeb83c511c8a883b1e6215b267641a86b680af562595083ae7f01cc5ce5c7. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/BRCA62200029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9442715b7f8b71ecf797cbb22c68e539d429ad14cfedbbd0d1233952ce1c149c. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/BRCA62200028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf06f0e9072197a36714ce7aea5efe4554ba4182d5fa9d1fddfa3df5ed7709351. Chain 2 (Bitcoin): anchored in block 960164 (2026-07-29T23:23:05Z), 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/BXGTT2000097.