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 0xd8d4241439b9cc384a61784b6860c88d4be9bad0926648f77edec0e24ae48868. 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/d126b448-c8f1-4fe7-9824-b3387f33963d.json and https://artists.proofprofile.net/proofs/artist/d126b448-c8f1-4fe7-9824-b3387f33963d.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 0xdb4b1449ece3eb48ad7cc1de01c7e7c5096c0c1f5db878d0814691045580d5bc. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/QZMEM2158700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1689637cf627ab42c38bf1bdb9431c2a5bda8a9edd7a5fdac0c67c42f18dbf3b. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T01:40:01Z), 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/GBRKQ2248716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3cc12f5485381b5978278d36a07a0b5568f2e9f8dc5d96add4042af92c26aff. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/QMDA62411238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa64f57bf619d0ea65ccb326b45d04122426321e553cb7a84791690f2a60b5e3. 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/QMDA62411228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8214bc159d1f4bdd52a722dc7ec1f4581d3ab18e965e9337a50edcab081bf174. 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/QZMZ92336442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb77c2b2ab729072166b85d33ad89646b7eba9582b9a073c0ec3ebc178925399. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZTPX2301188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9166d3a199cb6ea2cb9ad33b371641664d97c926de5afcd077143d1ba822b0e. Chain 2 (Bitcoin): anchored in block 957702 (2026-07-12T12:25:41Z), 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/QZW9K2383083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3143b9596022291f19bbc792b369afddb97a7f25c5de95a2a4a7a17a54385e7. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/QZW9K2383085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9aafcde38df022466f67970a3ac1786b209dbb17ca11c880cb8df9c3383816b8. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T03:34:25Z), 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/QZW9K2383084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabab682c27523b1d4ca2daadeaeb15df197f88da521b44a3c8e04b421c16ac45. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZW9K2383082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9c4b43cf1f309a5d4934b22432dce0e41af05312f3c9e830b0246740d99c771. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T18:05:39Z), 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/QZW9L2363451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f799b13846fb1580f1e8448a56a238dfedd85c1664fd3b297fbbff57469525c. Chain 2 (Bitcoin): anchored in block 958705 (2026-07-19T08:43:25Z), 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/QM6N22408610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad188e871f6f8087118604ac81261138aa63c73515329373962c6068ca77e4f3. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T20:30:15Z), 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/QM6N22408611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x040335dc7a03cefdcdb88ac33649edf06875db3733e2e0e9a599582fad905f95. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T21:12:00Z), 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/QM6N22408612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd24552ecc073113c4197c4ea5d8a360da29934deb12e0e38d8b81b6a0995fa2. Chain 2 (Bitcoin): anchored in block 958734 (2026-07-19T12:54:58Z), 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/QM6N22408613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc48cc0565d432dd57ec939bbc7f618f16efed4169f628cd7ff4c09e3b97f2edb. Chain 2 (Bitcoin): anchored in block 959076 (2026-07-21T23:41:40Z), 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/QM6N22408614.
No Voy A Llorar / Tus Mentiras / Disculpa Mas Voy A Llorar
Peão apoxionado / Só Alegria / Na Sola Da Bota / Mexe Que é Bom
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b5a99496b43072565530d0df8b019ea726a63123f53bb02366496384f577feb. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/QM4TW2569412.
Mexe Mexe / Boca a Boca / Cumade e Cumpade / Deus Me Livre
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2673bb4b85d44dd18282594d1b9f635b2e0cad16402d09736312f19d50dff2fc. 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/ARQ8R2500009.