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 0x7f4cb318f99de7800daada0d100150d87e9c3254f68178b99d0f4dfd24f4c97c. 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/ec618407-394f-4d5d-a011-21507cbdf856.json and https://artists.proofprofile.net/proofs/artist/ec618407-394f-4d5d-a011-21507cbdf856.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 0xd26ecee3b7c17dd7bdabe639539df2a7af2094f0eac729217cd00ee761fe9821. 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/USA371499951.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x356b1631ec21245b00d5d0ba587851441b6b204229a02e236543067f886beb90. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/USA371483422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a27aba5875b40d74238ef8574e8a2c5396133529a5bd380db3588c11a5d03b5. 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/USA371632958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ee44b1814c71903ad029f29b93450473ddf306a308ecbac22248e88778e8f40. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T19:14:14Z), 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/QMDA61333717.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6091984698f79c3754893d88641785ae97d6e55edf14c78068b314eaf73864a. Chain 2 (Bitcoin): anchored in block 959026 (2026-07-21T18:31:07Z), 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/QMDA61333721.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22ac8a12e4662ac504e0ef88c615f7b8519e3877666fcbfbbcc17002a19402c9. 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/USA370979523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16c4c50ad87a704c8dc194e30fc1c5ad167c98d8ce9c45ee346220f3aa0fec12. 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/USA561217451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0a23033ed54bca4d27c757dd3b87ffaaab3538d214239a6bc23dce9b12aedff. 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/USA561262580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54b1f73e4d477fe33d37bafbeb04e2d4949bcca0095e1e2d79ad62c20698f97d. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/USV351319318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa12390d97fb17e899644489d2710c1eb8c89918c62e3bc18c5062a601e2a4373. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/USV351319328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a6d5b933bb1600f0d3c36fc5924dbcc04b5dff66b3082166876f5325785af02. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:32:10Z), 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/PTVI11100404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1796c0dc6edcd788daf31a4271fb67b3e1427afd10624ec99806650c0cf7e9bc. 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/PTVI19400218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1582ad94884c5cbd425a26d37366f5ae374cc24b9ae4e496c085df34f722dfe4. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T18:06:31Z), 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/PTVI19500826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3f2e4d1fd9289ae3899a21beebba26a904bca1487ed73770fc8a8e34cddbdab. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T17:47:42Z), 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/PTVI11300448.
Marante, 25 Anos de uma Vida, Uma Carreira
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe00a56fdbc7df9c3984395077cd3a48530a42e0a6df66df8a43412f401ed1b85. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T03:46:03Z), 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/PTVI11400241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x396dab0d792acee707f1e167597f58e1bbfa1c290da411cb03e6d4000cbe3156. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QM4TX1502359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafa1c562387b2a13b59eece4d945b8632d78ebd244389bcff810c52334d89908. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QM4TX1502362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8151d20af1672fe6f5432cfd116672da52a835cf86218011810a39906e26f491. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T05:47:50Z), 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/PTVI11500146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bbbb3f69f619c17fefc2e4a00633bcc7ac65ab654e785203b01edd31372b089. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/PTVI11500148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5363e8dd2054e313448433c7d600627244dbc341aacd3ae4a2b4e54c58db0e2b. 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/PTVI11500154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e47ad9cc57a7159a58d9eaae34272aed947e05dab92bc7daf0568ed1662ffc8. 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/PTVI11600074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a3c8b3dcc189d060ee8cb7d74003253962e52c1940fef284cfc2e3453fece59. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/PTVI11600075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8b4925ed62066b1dfad61e7f026570018587dc68cc07c070718e0ad69812de2. 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/PTVI11600076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8badc5bc09ce7987a20835aa833f720c0ab266e8ff44c3e7fc4434744f855fe6. 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/PTVI11600081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa1569332fa3e537c28a9384c95202aa277a305c7873d016a3d6923f510ddcdf. 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/PTVI11800108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe26317ae0f4d6e2b980d44d60967fd632fec37afed21a9431e31121b0db6b683. 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/PTVI12300328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f981b129ce4e34496265401ad5c2fe6a77d4dbae766a575fe3098ff47c19f99. Chain 2 (Bitcoin): anchored in block 958726 (2026-07-19T11:47:20Z), 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/PTVI12300329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e321da4839d28fedc19671930a17b1252bd43898e8071fcf8dc0a1d031c66c3. 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/PTVI19400228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1b8e7e56e15db4316774908c0e52441da83a248b448af343880c43519047bda. 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/PTVI19400245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5d477cabc3f3a68a1d5ed3cfbe0504f97d9030c2d2471e3a55f767354dc7d45. 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/PTVI11600077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e321da4839d28fedc19671930a17b1252bd43898e8071fcf8dc0a1d031c66c3. 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/PTVI19400228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc49e848202cb017986c1e4c351a570c47a4b98834b5345c44e180c2396f4e17a. 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/PTVI12100095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08be5e29d3a7066d5558ed68ef0b584b3f467e07246ec7c77fd22d32994e779e. 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/USA371563961.