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 0xb1448acd0d7ee9ee5959f4c599808ceb0b228dd1c0d6dcd997ebd1210099f4fd. 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/72c32bb5-eeb8-4190-92a3-3ce00c5b4ac7.json and https://artists.proofprofile.net/proofs/artist/72c32bb5-eeb8-4190-92a3-3ce00c5b4ac7.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 0x317f6c36d66414d798a719a47a2b65e046afe34285adcfb73c3db3f581ae0e3b. Chain 2 (Bitcoin): anchored in block 957866 (2026-07-13T14:54:25Z), 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/QZEQU2081327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fc0e7e3a68197736b2afc9606f698fc3d5424d76192af42f8bb79b501795206. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/QZEQU2081329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x358f4dcdb1e2a55893697ed7bd0f1596c50b615dcfdd6207a2fddec09ce7a10a. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/QZEQU2081397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc5bb1965d111424b37cfc15da2ab50cd707b31def431ba2a6c73ae7f8d8ec65. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/QZEQU2081402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35fb42fddd7cc317f4f0c36c1de4551c5200085d063e5948b8cd722c180c3e5c. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/QZEQU2081403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30946f03e94b850999ed325237e2046ae58ccdc1736f5c15a263a820df0264d1. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QZEQU2081405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83c3a0930f0966f1970572eeb853462f1dd7556513659f2a28cfe9b3f310124f. Chain 2 (Bitcoin): anchored in block 958880 (2026-07-20T15:11:11Z), 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/QZEQU2081406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fc0e7e3a68197736b2afc9606f698fc3d5424d76192af42f8bb79b501795206. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/QZEQU2081329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d7d933ac5a472d6c0adcedb27acaf766754788fb11c7a985a8a94ca0ddc6aba. 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/QZEQU2111505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f8871d33418f29a4437fbc72836b24fc8266c160a85eb6884c65acac246ebcc. Chain 2 (Bitcoin): anchored in block 960185 (2026-07-30T01:32:48Z), 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/QZEQU2111502.
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 0xb23100d3a4ef7f6e42935ff7622287046088b0dbaa263e6fb6f93f3c12bb566b. 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/QZEQU2140267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc6dc6cf21a704b71f6ad6ec90d04c162530ebf0478eae390ade0f326bd8ff6a. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/QZEQU2140268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54ac1e2017df1cf645f803bfd1c5de7dd201a5ca2d868d1c1eb53c7d1b2da1c6. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QZEQU2140276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x490c400b56a49ff8fa8f6bff12e78a98d798386bfa8a428cf05c3a200b96418e. 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/QZGLM2169903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbca5a3a2f748ba00cdafcc86c3e1cac0123bea6f24b924b65ad9fa517977c5cd. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/US3DF2251569.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d5be012e60e431a15e154895091ea66858f2c13c85ef1a5681c31791ff3f024. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/US3DF2251570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe47e43ecd5a9fb8cb832b9eeeb690c41774925d320fd68fa01aa5fb694ab9dc6. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/US3DF2272083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3a3dd089b02967dbf4a5e05b54a0f47268e5c248516a5f998491194181a555d. 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/USANG2202583.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7f65d7ca0b7d54f940b6cb2774db03fb41ae4dd239873c1359f6abae06fe1b9. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/USANG2287437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x068e2bfbda0d838a9affe192508221740988078041f03a8cd4cf56be628c5fc9. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/QM3DF2259415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f926929f0676b5758e4731b12178d0e980ec606df1c09a8b93431df0ed71211. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/US3DF2419512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd81f66fe2d745cd453aded35194a389a23450496f6523a34c89b86869e5b872f. Chain 2 (Bitcoin): anchored in block 958816 (2026-07-20T03:51:05Z), 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/QM3DF2402712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96786281f529c6e88ceafd77a127b9cf7057db6cb090527dbe8102ae7a784bd8. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/US3DF2416325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf9e062e5caefb4d52f98ed644c13e59b10dde3fa0405bd5c675109a9ae49b34. 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/US3DF2475574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb5010b7e4aa50352e906eaa77404bb0a6cc0046603a4376e2f3342ddfec7132. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/USANG2418183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fbfdc05466b00c5dba426f68008c78f70bb7e78d9357b0d6e8a03d56d42743c. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/USANG2418186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f29bf9e991a1b89d36d25699e3cf629e73ba3a7354ed58f5edaf8ec24a7a0c5. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/USANG2488767.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0de7bc63377df28749ee318fc2214244e0c6b46272f7e0486382c4c0f35dea2. Chain 2 (Bitcoin): anchored in block 958703 (2026-07-19T08:36:12Z), 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/USANG2488768.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb131f674fd025712b100216c8dfc0b8e11ace2a1d7fe534e30472797346244a6. 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/USANG2488769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78dc91471cc6c611a10d4a9bd77a51bb087821d6f420f1773a00dbe0cd98dcd7. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/USANG2488771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x515ff636c72aa2c03873d5facc37c3fb4a70399b8d31052fc883c5881e7f1dfd. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/US3DF2553806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x081aa64ff8d05e67530c2d714553131f0d5c6ea6f1c1eb315ed9327fbdb59a9d. 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/US3DF2553807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x003a4aa9f878600a59e91be0801db7ecc5639ceb99fbc3df64e74f6b19b83b82. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/US3DF2553808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53bccbd4e24d15a882064cfd88abcab7164f27601a9324d855d2fc6022713017. Chain 2 (Bitcoin): anchored in block 958087 (2026-07-15T02:56:49Z), 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/US3DF2553809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8dfd0e31c226ba336af6a47d2c05736f4b4dbc9fef57682fa57e2bf96e4b7f0. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/US3DF2553811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0a0d915b22bf2bec249372feff3f12cb54fbc59777869f3ac804f4ec6055818. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T05:08:48Z), 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/USANG2521815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadee2eede188efc77208a8ed7bc4c3d6ef3171a4507dd0931784d934e0ff1205. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/USANG2521820.
Ombrim (ai que delicia o verão) (feat. Mts No Beat)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c714706cd42e9b8cd1b71ace68485e196fd906aef3b021e92a7c117652a5c51. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/BCMA52300046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d791a9477834ae07219466294041f7bb6dc38c35bf1d4281708c70dbe22d293. 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/QZWDW2439252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc27ebece97d792d8a41af301c341c1c6fae039d933020a89a672081ecf8ea5b9. 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/BR03D2400790.