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 0x5a320f74bf98e1b04a2929c685b5b5fd6b91032f92b756eddfd861829ecb775a. 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/7344850f-af27-4411-90ff-c8975f45e817.json and https://artists.proofprofile.net/proofs/artist/7344850f-af27-4411-90ff-c8975f45e817.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 0xa413e14a53ccf53a95912214c7d328a70caf213ee630297b36a10f4f7883a92a. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/BRLPX1700011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9a9a8ebaa8a76274f61020b6ab30cf3d0d66ed35c688b15f794607156181191. 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/BCMVV2200091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x980f40d23467c995d5f59539438eb1d5908b91fdd812853be6aa747d52a51d3b. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/BRZCP2500001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3259fa2a2303f7d8cc4e7bc89343c8d30ba0216c5969103c0309398db122603b. Chain 2 (Bitcoin): anchored in block 957788 (2026-07-13T02:37:37Z), 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/BRZCP2500002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x643508d3a5d63611e407c7036eaa5ee4e48354b4e0bfee1782da2c5dafc16767. 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/BRZCP2500006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x747cddfb94b28cfe4d44305c15fb651bd7c3f1dc2e9ababcdfb1087895a9a445. 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/BXGPM2000010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb579a526230fd0c66d4819504bd7c9b40e37cc3ca5052edd7f68b59e93e6fed. 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/BRLPX0600011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2e95e8ef0d4478b8cfa9c038c443905c1682a06d14089a5572f0617a8ebb94f. 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/BRLPX1300006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc04d20026c4a4fb866284aad0a0d15b440c27995fa4eb670b20fb28859d7b420. 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/BRLPX0600004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d817a3692745bc6267f433a406ffdf2c9405e023e14e1b06ae4af399ff0b217. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/BRLPX1200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f2724a9e960ddce05ae0542f505c72ca279f7f11464c76ffc7b844b11621157. 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/BRLPX1900003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85e30efce3d9b0fdcdbd9ceb20b97c655ca04c75ceb5c6971f4a25ad444b9306. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/BRLPX1500002.
Vitória pra Quem Acordou Agora e Vida Longa pra Quem Nunca Dormiu (Edição Especial)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x943064868bb23d78d6bdec5bc08dad5149b6ca03ca8d0a251697ee08a9864562. 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/BCMVV2200025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x571dd1b5cc613c7345a9506f51facd44fbb0f23e1c4f5bdcd68cb72f5070f722. 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/QZHZ62017072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fa74666e6869e28047644a2a246d9dc1b2533c3994b8b7832efdc20bb7bd19b. 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/QZHZ62017074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x105014287db722940ceb7c0ea00eba1d3ade173f746e35a8efed7d3390cb4ebe. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T07:19:23Z), 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/BRLPX1600006.
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 0x90b3150487ceaceef95a84af2e9d874c36846d2c38d18e1610f74362df0918df. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/BRLPX1400009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcee0c12bd8ca255a0a84b9c690e855ac7b3f34c2fbe733f3e795d6392504062. 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/BRLPX1300003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9003b9709b226c7fe34de43661b62b3a0d98e73cea453f142947567d72113825. 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/BCMVV2200086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb4ffaa73e881fc66d20600dd3a4a7f1b4baefa28e2b77262425fb229a694cd3. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/BCMVV2200145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2074e69b26fae4b635ae9510dcb7741c9a23faede92ff189666c40ed12cef61. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), 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/BCQAL2400022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63a6db1a3e6d79a6ccaf91a527843f93e38fb05724a6c530086e91f9af2668d9. 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/QZHZ62017073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x756fd5c637a80d9689dd544ddb88f08011d8c60abd623784c53c618b3ec20c3e. 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/BRLPX1700001.