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 0xd5f8196b6050a5f48d7e6075107197a38dc1747b3ff6a1f4177ca61ae37b97c3. 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/773c406d-56ed-4215-a31b-4b87e4f98926.json and https://artists.proofprofile.net/proofs/artist/773c406d-56ed-4215-a31b-4b87e4f98926.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 0x3463953ce1c28bc47a986fc4fb07b60c9daa8631b585c4131d130dd56da92dbe. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/BRRGE9701085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58b5695a2ec970975b1ef5f4069572fdee769e7dc07c2abedda4a575b2a4ea8a. 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/BRRGE9700343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25e86a8f15d538975d56cfff17c1848454cb5d3c093d0d9a7bd73e3198ad8e86. 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/BRRGE9700350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf9ee51bf8b975f84bbabf1e0f9b7a47971c35fdbd08969d3af9782f5618362d. 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/BRRGE9900312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x986221987d3612289b506b6848cbfa968f97cb82fb5ff4b498d377ec95357950. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T11:31:13Z), 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/BRRGE9900313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a38e13d3b6897197e052a30f69674fd394cf44613eb79841525f4078a124a63. 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/BRRGE9900316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e19c9dffd9d72f218f66f996d98c9c45eb394fc7d2bcdc518afd112b1cab20e. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:55:55Z), 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/QZ5AB1848951.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65a5a905afc56cd29329e1984afb7ed62611e109bad5f594245cd90925bbb1d9. 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/QZ5AB1848956.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e8dd30941f14af32094463dd27657cb945b289bc2bb9c41f2c92b9ef91c657f. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:48:35Z), 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/BR03D2501006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67fcfbb33858c34c9e58508ea2d900fdd9d4957704176f6621d5cac1e0dc702e. 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/BR03D2501013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x601beb571d1cf9b6d018fec5f80355bec7066e4c1a40facefb513e99f48c8fc8. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T01:39:00Z), 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/BR03D2501014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa709c82f399b2e18d785391e0e334570df447107c92803c551bed3b880e3ff37. 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/BR03D2501018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55eaf0cd2dc7330c5fada13de4688c00a9125b5f54d1a2c404931c080011d820. 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/BR03D2000060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd04fbad70d4996a62d44c4ee687ec66217655e1e65aacc48113df5908855a509. 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/BR03D2000062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x522fd02daa1d1ec73ffa8197cbb0a41be50385513e266ae38cd7f72dc14247f0. Chain 2 (Bitcoin): anchored in block 958395 (2026-07-17T10:10:33Z), 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/BR03D2000063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1926731f1b512676dc0e962d08838db85eda7f8407396b8e738ca1040c9014ed. 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/BR03D2000064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c41d55ac8bc8b287421effa93d77c958766906ef14ed7c0811b3617c92bb535. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T19:07:05Z), 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/BR03D2000065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1d512f267a0e4ba7cc1a9659d073d0f7d588d29cca0007588b67c2766d80a42. 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/BR03D2000067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa47d3b61ffce617921f17690930354eac4b51fdef174499167d0c2c77cf9081e. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/BR03D2000069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c69b2c3d905b1b1adba7cd58e519460a1bb65288d3662d0733e66548eaa9944. 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/BR03D2000071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb37b8902e70c77855284c13636cc0d70620aba78a5e4e6a7978b376af9be196e. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-17T01:00:53Z), 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/BR03D2000072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05bea21b0f16821d4fe075c36027994d99ee7c2533fa572b064a94d5382d5737. Chain 2 (Bitcoin): anchored in block 958122 (2026-07-15T08:02:29Z), 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/BR03D2000074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30f63bebd74d2f9d2e1d41e87a55937f9ea03de1aec7d1f087450573c0f11d97. Chain 2 (Bitcoin): anchored in block 958686 (2026-07-19T06:43:29Z), 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/BR03D2000040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb835abbbe73d2d282976c07388ff9314d72b592b3980bd6decadc56a07f1166e. Chain 2 (Bitcoin): anchored in block 957867 (2026-07-13T14:55:20Z), 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/BR03D2000041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1bdedb4805f5ab70efe0432520bca8cf283d46252c0473bfe874f02f68f48ed. 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/BR03D2000042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfb2245424656f9072324c81de9580002aeb018e9d5324a7086a8512103c6917. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/BR03D2000047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00afe949e83512a2102144fa9b92f54f5cd49b9e2e3a55d464302e2441876f22. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/BR03D2000050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeaad4d481e5a7a1571e76953dfa94a13a9706cc0bced98d1976cd7aae870c10b. 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/BR03D2000052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bf7c9010dbd8730ac43d33f3827353318ab99783af0969b653f15567b6eaeaf. 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/BR03D2000053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c880c3faba7889e0966b02c952cb3aacd4cbf09b83af83e66eb3b20044a3667. 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/BR03D2300111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0573c88b35a40466e2f9e7853a06411aa4cad2f023e5eea361d1652d25305dfd. Chain 2 (Bitcoin): anchored in block 958721 (2026-07-19T11:02:33Z), 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/BR03D2300112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43b307a2e9a621b33386168092e6ed8b63a39d50931b79a7b95a3962a868ef3a. 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/BR03D2300113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x305bf9d0bd09d650d4d9157ac1f9bea4d033cf66ca0a1bc7bbf52e8501a33827. 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/BR03D2300115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeaad4d481e5a7a1571e76953dfa94a13a9706cc0bced98d1976cd7aae870c10b. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T10:59:42Z), 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/BR03D2000052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcfdaae7dcf8265574bf29939a2675a4e5e6c4663746e991b62aa4a94a53d564. 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/BR03D2000049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1bdedb4805f5ab70efe0432520bca8cf283d46252c0473bfe874f02f68f48ed. 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/BR03D2000042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x235ec0cfd5b7b7726081cdaba577379e355f5443f09f875c3a5dca1088a0ad49. 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/BR03D2000066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2b79dd1128a0f83ca663612817ce0851816811f683e2dbd103073726053b2f4. 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/BR03D2501042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05c973b39bd62159d7ea296acecf7257688a77734d553b49ad06e238fa659628. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:45:00Z), 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/BR03D2501043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a551086cf8a0e817d56a160f27b39012c29ac291ca03e87d6899ea7ec7c4b47. 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/BR03D2501044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1be5709317c4c8a530d443994096ed0470e2e2c7b3ff4ef1c3c76b4e8fc03a4. Chain 2 (Bitcoin): anchored in block 958104 (2026-07-15T05:34:05Z), 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/BR03D2501217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a430c161268017535e5f4d23ef2aee359de5e6da537c6acdcc911fa0e2a4295. 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/BR03D2501218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4b8a75ca60d14584290a354bd8cb418eb3d05f20caa4bf4214ffa2b2cf17782. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T22:21:55Z), 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/BR03D2501219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8883e47bf8fbab41caaaa9eb7fc8d5172c0a0353df958c973121f5858b4a3b78. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/BR03D2501220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x498ebdd52247cfea99d8eb3a5c56beb295484cc20eddc0f5883cb5309a4e0150. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T22:40:56Z), 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/BR03D2501946.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ce457cc7dcc463e27f9da1d3fba3b222453bbe5568f6a3390b52ec165e9502f. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T22:06:03Z), 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/BR03D2501947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe250f36ecc70502ec4f08c2117ffd8affe4ca0d6bf383299cb3a01c66587ceb1. 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/BR03D2501948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3912f70a2d6af5e8ee22ce1f39167902b1e8a1693c541e0250669a8603bca8d2. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/BR03D2501949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84b6b4d1e316203572954371a09f4737a3cd586bcfc08cc908ca07d0b5fa7e41. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T03:04:22Z), 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/BR03D2501950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x764da4a7d748b956623e880b5cf15eaf484038c74c72c6e1243cee128cf15ce7. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/BR03D2501951.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17f0e2c0f108a33be9511dd27c139de8ee37d86b54fa193ccc2de1bcdb42576b. 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/BXP1A2000403.
João Bosco & Vinicius E Seus Ídolos - Estrada De Chão
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2858fe0833837d2dbbf62d77abf046fd181b448e4adedc64c34d08158135741a. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/BRKCP1500020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c0ecc0dfc6af9a7ae4d9d2044bc6ff9baa95f25368e4c6cdc82332a530cb4c6. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/BRAPI0500780.
Top Sertanejo: Top 104,1 Fm Clássicos, Vol. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a63159d04fa9e2dd1073420fe8eac8d5b66df8f2dbf9e929caf84c43f50c52c. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/BR03D1903559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdce79673663f98ca9c7aa8d80aeb7e5a9da5dedb1d9279f2252d5f82fb9298e9. 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/BRS0N1800156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8a1caa5235f245fc5487f8218035a6090be7e01ecfa1781f1ffd9aae57ba796. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/BXNNY1700033.
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 0xd6edfa433de382e1a5aefb4a981a22296ec382f14a6ee9c93b83941142ff5978. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/BR03D2300110.