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 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 0xc7b7391f7373231eb8e34882c53cc8d12794655472cf9ed8b60c895b3055f414. 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/c163c2cf-be08-45a0-96b3-3e19ba14d697.json and https://artists.proofprofile.net/proofs/artist/c163c2cf-be08-45a0-96b3-3e19ba14d697.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 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 0x9112f001f821e7a36e71ae0abd76f41fd06d08108c0e711fb561c63257ab6fda. Chain 2 (Bitcoin): anchored in block 959096 (2026-07-22T06:35:04Z), 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/QZ5AB1972868.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9cfa8f9c69bc6934d8105acee643a91af33717878eeac2227067eeaac91552b. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/QZ5AB1972875.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c72c4031903d58968829c0b1c316158653806622174018e09b9baf4e98239cc. 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/QZ5AB1972877.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x653e12e79b42519072793655cdd9f3ee9735cb78126cf23c53eb1f84dba1ce1d. 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/QZ5AB1972878.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f84b49339bc1fbdb35df4586a2db755273f79522ee6491a892cb1efe3b93a82. Chain 2 (Bitcoin): anchored in block 958627 (2026-07-18T23:33:54Z), 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/USHM22063684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x608372ad8dd828c56970bd39f14a8df3276f9cb0459477607248c78fd3856927. 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/USHM22063685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97171763f291dd9f6007e22091433ac08b097ae4425d9036e75854afeec27760. 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/USHM22063687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda770891fac26186bcf722fcb82f2bc699f174955dd02df9f172efaabd123683. 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/USHM22063690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda1bfc041ba51f7e46e7c13f0191969a174eeb162789e88b7bbe1d2cdfeb8bc2. 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/USHM22063691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x900c0f9e620e80ff9af0c8c8601c587fa96b1dd420312a3ddf8901afeb1d5f1c. 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/USHM22063692.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x348e87e003d6228b4996d51a2bb26af0c3dc737fdad40365d0e2decdbe3f863f. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USL4Q2030990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d4262f175e8cadf7fb5ae2ab411b788f545337efb25a96e9dc0099832957fa7. 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/USL4Q2030994.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd867f55914c5682be2a9496fa368d91cd169dc5fa9a69149f17cbee03498dc73. 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/USL4Q2030998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15c6198768dd5e2a15e6a2ff8dd0f7a00e769ab1841b969a3fb5d4b459071316. 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/USL4Q2031000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf894bc95b3f0194dd4236d2048a12088766d2f38456086d6c674ee1cd3e38657. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USL4Q2031003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57bf4a24f2fcb506e8b2bce833b25d6d5a5e869a43d7ee1ac8dff9e0034407cd. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:59:13Z), 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/USL4Q2044759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a87c18fd84ed82701b07010f8d62501c11aba05ace9158095cb09377edab2e4. Chain 2 (Bitcoin): anchored in block 958822 (2026-07-20T06:59:58Z), 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/USL4Q2044760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a2a2d19f223c3605febc2ebc8e870018c6809cbeb4d64d1ca1ecaaffefd7180. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T23:03:20Z), 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/USL4Q2044762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98c40e07298e8f47beda136361431832a468c42f92fd54498b42fe8a86e25727. Chain 2 (Bitcoin): anchored in block 958800 (2026-07-20T00:52:19Z), 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/USL4Q2044763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71eaef1100bbe04222b689aaac09c06c6deffb42f7aedc51377d15df34adbe8d. 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/USL4Q2044765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda41e771059c5ec85c5a26b53d5fb00999f2b6dc15859110cc9edd8705fc69ab. Chain 2 (Bitcoin): anchored in block 957805 (2026-07-13T04:34:37Z), 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/USL4Q2044768.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef54b45d088c199b571860df89b60ae6cec40ba7b558928a94731126b4d9bb76. 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/USL4Q2044769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x791560b0f2c43d9f2164a4fe6a76fdee364079ed16632330b8ea86d5d442a092. 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/QZ5AB1977868.
Puxa a Sanfona, Machuca a Sanfona - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8046a692f831cd3a2fa45a243be7b6e7b817952475ef6e5c0ea24014eee5f34. Chain 2 (Bitcoin): anchored in block 959051 (2026-07-21T19:48:03Z), 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/QZ5AB1977873.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0747c929f18aff3759c64fa9b9a90ce836bdc9800c8d890781de72fedd6b5838. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/QZ5AB1977875.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e6399d2a236b8eab61aa501b16761d26772a526612db2b5008bd683f2aab9a3. 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/QZ5AB1977879.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29f073177d3d1e257d1428d4e20ea1dbcb7a0da2e79f4e542e7d3c399163a086. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/QZ5AB1977883.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7275e70975b066fb76cba99f3b3905bd40ae70ce1b059ecaa133161c3117a0e7. 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/USL4Q2149175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fc88a0651ed6bd65d121a51a525dfcda1554deb137dfd70570bd464287a9783. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T18:36:52Z), 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/USDY42408835.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf72ace6df3c0d7ffa14a637fd9bf14b07b42275e435ed39fc4329a2e33a798f. Chain 2 (Bitcoin): anchored in block 958965 (2026-07-21T04:29:05Z), 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/USDY42408836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75eae88d76f696cc681b68fc9be27ff9811cb0fb9baa1bb670b51664ffec5d49. Chain 2 (Bitcoin): anchored in block 958889 (2026-07-20T16:04:02Z), 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/USDY42408839.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14c7c24a5cea809ea87d92b10f74fdb75755273f5c01eb62703d76dce68c4c4a. 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/BR77W2000021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27b6f1d59eda8505b07892dee5291f0cfc87f04d51a1f03a10360dc0d150396f. 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/QZTVM2352700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5024bf92d117e2c5c1f8d27e6788801ee724eaf318074557f21f4c0a8b41eef. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QT5AB1901014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a9e069b8239c04f7fa44076ec8154a343a89970e7ce182663a5b77f24a74880. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/BRQIZ1410219.
Término Recente - Ao Vivo em Canelinha/SC
Término Recente (Ao Vivo em Canelinha/SC)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2353dd2300b5b11b6cf0398ea588e3839f80be235ffd3840414327ec631bb68. 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/BR4QD2300004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a97bdabab1ad0a56838fadc2d7c3ee065f819f6e395884109888275bddf0756. 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/BCMXX2300002.