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 0x2f0dd6eed48aca3cf57c19bb84ba1cfe38b19e823f456811026db262566d947d. 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/c9841b37-760d-44ef-b046-b6a721083e81.json and https://artists.proofprofile.net/proofs/artist/c9841b37-760d-44ef-b046-b6a721083e81.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 0x47d0b725f50b24319169125242504e789f9183af055a0724eb5260292ca86a6d. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T18:49:29Z), 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/BRBOP1901677.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36bc00d3ba5a9bfaff67b4272558a2bcb6ba64af0c02f6aee0868a9d84ae4efd. Chain 2 (Bitcoin): anchored in block 959051 (2026-07-21T22:42:07Z), 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/BRBOP1901670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2159144be7d18e012bb2934d6f1a444df03caebc461f37f26b1daa06c8e29b2c. 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/QZZ662316938.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4b3d938a67a78cc7aa715ed054ce84f27a16912d62f34949628bf7c5f8211d9. Chain 2 (Bitcoin): anchored in block 959010 (2026-07-21T13:22:35Z), 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/QZZ662316939.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7346fcfb444c905c62e8400f4bf1c6041c41c9a94a8b50bd8e20a04a13b5a33. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/BRBOP1901690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x909ea65f9b74bb47b300dff5cd32e37bba05e5eada82c32363f2ef934e495982. 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/QZZ662401325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc82952cd65e9ec4d9b42c30a07492ee7cfa0a2722abd16f1e5cf7d7fdf9bb00c. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T02:50:18Z), 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/BRBOP0300089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70d9a4f9135977a6902eda1c1b71f928cf6f71fc19cfb9fbce05857c6cd56c8e. Chain 2 (Bitcoin): anchored in block 956396 (2026-07-02T21:01:51Z), 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/BRBOP9900180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d07d5136d6ddba5bbd9e1465d19124bfbefa41dfe039a46e70854c3515d568f. 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/QZZ662375581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc51be797ef7676e02583a699254fd6a4ac875ca9ce0ce47068c15306eeb5f53. 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/BRBOP1900094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x368f9d76c26827017756d8ca9242f4e1fbed09434afae3588a5cc097f237be50. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T23:39:44Z), 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/BRBOP1900107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb00f2239d56554cbe7323498956fea46b14b2f0bbebca32bc4cc554028bd2a6. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T10:11:14Z), 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/BRBOP0300658.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe8a84e772c79f875720c7cc7549aecc2df13d0994b4ec827ed9d6a7a998e62c. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/BRBOP0300661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b85c7c8e340d4021bb7a4ebd95ad5ff0adb66218f8df27a46e8783747899c8a. Chain 2 (Bitcoin): anchored in block 959103 (2026-07-22T08:26:38Z), 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/BRBOP0100176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f73f7c29f444a8812116eafcc4af57a761086c8702fdf2db10e681da602b47f. 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/QZZ662308805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe11d63de8c5d67e40261737895bf5cbf19b7e75f70dbede19091df7827e7c8a0. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/QZZ662308816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecd964b51734350471d0ca81ad143f317b20ce990d0f029c94a7477bf7b2c124. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-16T00:29:32Z), 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/BRBOP9900187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf02f8204508a449e5e940141168cd4113fcfe9289230e605f78f8f0eab14bb26. Chain 2 (Bitcoin): anchored in block 958392 (2026-07-17T09:46:31Z), 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/BRBOP0301599.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e01cd9a9e5c04231b3eca20e8be2af08ff608b37dc40d6b9d29d4b633737213. Chain 2 (Bitcoin): anchored in block 958682 (2026-07-19T06:17:12Z), 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/BRBOP0400516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x298ef94f2b58904e4e8ef54f6cbf8ebfff95d6374b45563afdb6b36734f805e5. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/BRBOP0400519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa27f8d9c048e9e127a279b93d32353afaa7472b1364797d00756e5d3ecca343b. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T22:11:45Z), 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/BRBOP0301602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47a09f539b055ba35c7e5baab07225334c55ba238ed1415cf1da07e8bdb6c0a0. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T17:15:57Z), 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/BRBOP0301636.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd201f014633caeae0a825ec6413f713300080cfac3ba3b6e315fe8e4c144376f. 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/BRBOP0400521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dfb67869de0b5549ee9df1934c2910e0753f39ae20d7761e4f6ef5b67fd2a0b. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/BRBOP0301603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c78da27340f3486348356fcc6ccbe307f768ed2ee25884c1010819c6d9b8326. 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/BRBOP9800005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x419a18a24a436667f3c15520fd181c9af563b98565db7f294a2c49f3e7c3f860. Chain 2 (Bitcoin): anchored in block 956396 (2026-07-17T03:07:06Z), 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/BRBOP0400515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b1c6f562dfd262efc021cbc6b68ebe8d050be35f52af7d60970a7698f237406. Chain 2 (Bitcoin): anchored in block 958785 (2026-07-20T00:28:16Z), 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/BRBOP0300105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ca19f45070d83de1800ab5eed4a53c1e4381c80f2189d89718728c76ebeb87f. 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/QZGLM1905115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73da2b079893026196f0e6d403094f24b89b060b8036d8d12d54799544f949a3. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/QZGLM1905116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4354bf97ed163d2da1b187e9ed3399c5e575fabd51679f87c6880cb849c3de60. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZGLM1905117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc24ec74539633bd57e738155ae06e4412207a095107e3ca73cf317cd3df8d5f6. 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/QZGLM1905119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d965cfb04d446e5fa7b59bbdfdbd3c101635acdd977d64e94c790f1734e0463. 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/QZGLM1905120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x287e946420c0538f0b51c50816c959219447cfc1a4e5ce2a72cf834d3edf15bb. 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/QZGLM1905122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99fd42f200b2d801275c02efe8a6e94ca34834eb46e5b2036cf0bb66cd0d8972. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T08:03:59Z), 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/US7VG1992956.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x461aa82ef88f3405abbfb7e176d2dc3a655923a9e831bc3e00a684ce47ae2800. 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/QZGLM1999288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49f9218e07dfec93b7d234116ffc2f7bc0108a144cc0cc43a19d3ac77ad1bddf. 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/QZHZ52224594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b63f3aa5e69580feb53768cd88fdd8ac840c763b99e31e4d2402a8443a92512. 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/QZHZ52224601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddb7d92f91939b0ca8c5e1faa11f69562f7ffddf9661092606024c3407ae8d16. 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/QZ5AB1799967.
Louvor e Adoração, Vol. 4: Tempo de Adorar
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fac50f640f0323adaa5e305bf975c8359650e2df1fdae618bd2acbedf8a0522. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/BRBOP1901329.
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