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 0x84f7d87e1d9f44dc5c9f5c054b03d474bac2841ea2b13a5b815dbdfa32a988b6. 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/db3a18c2-9987-4747-9470-515375463246.json and https://artists.proofprofile.net/proofs/artist/db3a18c2-9987-4747-9470-515375463246.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 0x0739a4920564ee66bd8431276a2ec07af711b8d711bb90a39003dc43dbfbcb5b. Chain 2 (Bitcoin): anchored in block 958945 (2026-07-21T02:25:56Z), 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/QZGLS2352278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8de925a7f2e99f1a667853fce09b1d2ca64e0e0d9ab316165a2d6bedecbf5fb5. Chain 2 (Bitcoin): anchored in block 957756 (2026-07-12T21:36:27Z), 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/QZTPX2161123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5695ff11743364d694347b8799382b8d98983ba9dffe211cfe659868d5f8ecb. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/US7VG2255121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ab1f8854eed41a0a427aeaf8476f27ef793f486fa60cc4c1d4cca3fd4aea096. 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/US7VG2255123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x991f963f3c7f0512a38790587358e550111b15a5ff925fd3e32dd957667e13b2. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T17:43:20Z), 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/QZW9K2268002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91d720c96a43a57acb1cd818f1828550dbc63b1f2146b8356ac5b6c2faf90c45. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T15:48:23Z), 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/QZMZ92314798.
O Nosso Beijo Tem Gosto de Cerveja e Cigarro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34be37312db416bf6a87282cfa8fa9a62febb7b21adf63dd10758229f0697f49. 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/QZNJY2376889.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34dd4f1d7d44fe620ddabe0f3bf3d095d566db970857a556f6887ec47b87fab7. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/QZNJY2376890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f69a2a66529eb84cbd7e4345aeb104868a6bd4e36be83663813d6a24faea3c0. 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/QZW9M2343475.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0170102ef2f8fdc7ea3fc5777f0f8911793547184a45cd19399be8d250a80571. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/QZW9M2327130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcabe5c9a3d3a50f67202d3c261d31e04399a049e22380432489292cdf63d43e4. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QZW9M2327132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ff3aa22dcaebdd5823bf1834950824ecd68273e2979c8313a8720aef9ed9328. 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/QZMZ92434927.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d997a69adf5afe55fbf621cd5ef994f0479b2a948ebd93cc6a17a3cf47e5a87. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/QZGLM2528664.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5df3a3f919155059a8d418170b1379907ccda2df386d8cf1279cd9d31801fe79. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/QZGLM2528665.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1b5fcf462883bb8260f941ca2f7dd041869260e6b5fa7ffd388ae2ec4f466b2. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/QZGLM2528666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x747f929f8b7ec84dbcc081d64a441591264434b508ade66ac4ffdceb2176c65c. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/QZGLM2528667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce9f296d4646be013691ae9a6bc79801ee2ec35d3d220e4fed4309b356a5028f. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QZGLM2528668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57175dbe2afec251fd63116c9eb62a6afd6b7b49da564a4261d2684e003ec6bd. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T17:53:56Z), 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/QZGLM2528669.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e73abfe9171edf51f8f95e22b40d0b0d7b875fcbcef5dd2d9c4cf43d5499e23. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/QZGLM2528673.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bde4e69c980a97b039208e6fb00b9b5d962f50e1efda5389d9ec3e51d4a8cf7. 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/QZNJY2548351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0c350648dbf104eaadfe5da62cad948c9eea26ed349773ced20e3584d310f4b. Chain 2 (Bitcoin): anchored in block 957785 (2026-07-13T01:55:31Z), 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/QZNJY2548352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cfaa41b7c74b605d586ef7da4da5df1cd824306250309546f342e846b7c1474. Chain 2 (Bitcoin): anchored in block 957785 (2026-07-13T01:55:31Z), 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/QZNJY2548353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2439549ca4ae5356e6f0b5d48caaaabc490f614bbbf046fb1e62ed295352966e. 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/QZNJY2548356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15d2651848303a8fedb70ac4fef61c58de8e08e6691d4b1fca9d7df658f56bcc. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/QZNJY2548357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9afe85af228256a570fb60c6fe9f9d9324382c9f0d0cf477e9db46d322260d3. 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/QZNJY2548358.