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 0x7c0768d2505a6764283dbb4bf73cbd9fd1495414279a4bd586c58311dcad608e. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/284e185a-5ff1-4268-8287-b5a58f46635f.json and https://artists.proofprofile.net/proofs/artist/284e185a-5ff1-4268-8287-b5a58f46635f.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 0x777f5700c27c1915d9ffcef3db4ccf446d1c1c78feb6dd193442951a9f1a3c5d. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/US7VG1597928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a06ff920c77c9ea220cce36eea3ea20e4b8441e9aae5f49c1508c3f979be144. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/US7VG1597930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdd1c3a8bed31291869c6c1451e7a312823ca12d60266c73e81d5db4b9e58f9f. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T22:36:27Z), 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/US7VG1597933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9623f6424bfc3033ea0c6608ff69be5d4e3276d846749d6c697cad8d21705a39. Chain 2 (Bitcoin): anchored in block 958142 (2026-07-15T12:40:42Z), 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/US7VG1597939.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d74719f8c76a0560669792741df3846d06e704e0251083a49e4b763ad7847bc. 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/QZ5AB1715529.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d313767b705352603506f19724ac0cfb098851269099989b3e9c4b818582e98. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/QZ5AB1757978.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a7080ecc79e1c66dc93d25b9304dd38aa4af0695b85cd610b3caf16f07f9162. 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/QZ5AB1807265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e596090cf91468deba7bd38e46c7a79a2f5af26a5174905fb88c08c475a1211. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/QZ5AB2048120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a7c7c2fceed11f3fbe661e33f36a4050db91277566a8df52b47f67eed8e82fb. 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/QZGLS1984864.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x860b049298814a84e38d538cd79746c133bdfede14efe768d31072842ec598e9. 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/QZGLS1984866.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5a00c66847945fb1b12b61d463a8e46a1e0587d90ab8783840719eea8355e0c. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QZHZ51957860.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe32848634c12d5a673600e179888df056bf60ac248594fa61dd9be960df2236. 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/QZHZ62014125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69f27b32c35639b135b8ecb550058187a23b9740fabcedf30da23522625284a5. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T14:11:01Z), 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/QZMZ92000288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fa1dac3ea34f19bc79be0324492903d4ca10b5103cdb218106d844c024069f4. 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/QZNJW2018974.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x834bcd9c2ef4f23e5fa5e33c4302459b85b425ea8d520dbda6b7d7bba7637434. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T18:43:56Z), 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/QZHZ62114403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3faa9605c00bcd2c1884266a3f1406098a82389fbf98a517d9837709cfcf732e. 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/QZHZ42283169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x587a10eb82c3f7c8cecfc60067592085e1a5b9746e5c1b160025323193ddc664. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/QZW9M2253711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaebca5ef965f8f85622e5cc004a2bb65b7c7f8aaafb66cebe3f7f2956bc99f74. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/QZGLM2324059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fedbae3092ec758f288ae5c31288b24a410e97f7a843e37c46538edcab7062a. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/BXUT02300019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x093dc25b2072376cc4737e032c124200fae253bc828ca1116061eb736ec02f2d. 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/BXUT02300022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f9cdbd5a5bed0945ac5abd2a80236c0f2173a1efca4055b20f40221e49aa30b. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/QZW9M2332042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cd4e8029a6ef87309095a9328d6b5e2e995a8a1fdcfc4496c9ea64022b436fd. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QZW9M2332043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf30d17f2480248d12975b14fa1d29ed793addc31f1cd391b6a057b38a2a8d6a1. 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/QZW9M2332044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d75555ff25b2b1464498c02308ea14c97bb0bc8f360c7d6d70cc706f0be15d4. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/QZW9M2332045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d41fc3f605e56214cfa501eb2c31411975524c2dfce19ce5bd267232caa92c8. 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/QZW9M2332046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07f64f710d9b1a70b63cf7ab4b141f7ce8360716c5478b935cb3314ff71db25b. 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/QZW9M2332047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x116499a613b788efd1c1e6666193ad7e19b9ea36edbb9e110576abc97fc31f34. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QZW9M2332049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4988bad3983984e21dd91958a631d4554b58f443bb93f0a8190cb011a44b7cc7. 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/QZW9M2332050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72a0082aa43e0cb65fc7bc50f2bbf3d00ed4da4387c18c99aff297477e14e032. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/QZNJV2405256.
Vai Dar Tempo, Vai Dar Certo e Vai Ter Festa
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe628eac43b494f586af9b85994cc88ddfebd90be9ffe7dbed870bf6120997781. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T11:01:41Z), 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/BX44O2500793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1252c53f3bf7c1fbd8c1374f33bf09786068c37422f71e890f1e4394c74e1d6a. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/BX44O2500813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ff27696445a42390cbc61057afe7cd92b9952f29a685de5253ee348b23f6d5a. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T07:56:52Z), 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/BX44O2500827.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaa6167ab64d7f59e02be80a5bd7b0fc21045c4f2078a2d5336f699c0e0f574c. 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/BX44O2500840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2be549f1311cb7c014b75bf3aac1311dd673aed0a44a36e9948c7ebdb7b2ef3. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T16:45:45Z), 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/BX44O2500820.