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 0x037e66ee3b4e566112abd9793d9626df9594ee37173c5465c449d61743ee9444. 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/b8a8a9f0-b964-40b1-b25d-d0ad6be7bc1f.json and https://artists.proofprofile.net/proofs/artist/b8a8a9f0-b964-40b1-b25d-d0ad6be7bc1f.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 0x02eefd291ef0e7eac25108374e7e13c0e7234f9d0647cc0c8c92d8e5b5de382c. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T17:24:29Z), 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/QMPKX1825949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61068cabd559ce1f6dd0dc2fa70b655895c8caf1f6d13281ea36fd715e07b72b. 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/QMPKX1825950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x121f2e29284fb811622282c0811027593648ad996e9ee470a174a019363abdd5. Chain 2 (Bitcoin): anchored in block 958130 (2026-07-15T11:11:41Z), 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/QMPKX1825952.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb128eadbcef67ccac2f7be41925985881c2488dd517f5e9d8f2d646285bdf4fb. 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/QMPKX1825958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa695ec1eef3970edb2b9ca15d8e857a051403e984e56b363f489a07eb57d6719. Chain 2 (Bitcoin): anchored in block 958561 (2026-07-18T14:22:01Z), 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/UST8K1889949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ed0623651e24a7bda216b33308771448279260ab8c567c52bf76abec288f749. Chain 2 (Bitcoin): anchored in block 958401 (2026-07-17T11:10:25Z), 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/QZES91899215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ca9c0bfc92046b7a956d550934db831d3b68f3063949d3d611dfd630780639d. 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/QZES91899216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbed178d086f1fe1ad0a875134f85aa45be27eaedda1ffce42132a56bf0c511b. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/QZES91899218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3d17a392cae374f631e369f78f1eed20e15238de7c68e08105649e1ef80e52c. 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/QZES91899219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49babd1b482107e68ffbc09d0e0d37552631fb2603d55d3aa469302dfc1399f8. 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/QZFZ71968618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1692b852834285ae9aac28cb2ecefaa26d6ff8563fd8cf36e85b67771a8ca62. Chain 2 (Bitcoin): anchored in block 958410 (2026-07-17T12:18:07Z), 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/QZK6Q1949103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e108c7d24b8d7d36eb8cd5ff243a82f644ecf494667951dc523ffe0f1a674ab. 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/GBKPL2012266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x162a51e2880de9317a250c8f70dccc9377eddbe065b207687e34c737841ed891. 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/GBKPL2029304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fe53f0a8bd1567207382f1f6e2784ea03577ac193c7252b1c6c107204686fd0. 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/GBKPL2145066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x258b72394a54b7fe4fb7336b01acd67c7bc1a75e650a371a0200e01ffad9978b. Chain 2 (Bitcoin): anchored in block 958197 (2026-07-15T23:16:56Z), 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/GBKPL2156284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe06c0328bada8305bce30ba6743ad72eb923520179caa8b695fd0d0778badd69. 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/GBKPL2167610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cc6cd1d466e5b960ce50a54da0faf9d6e2d87acc037cf5d73399f0f90a40321. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/GBKPL2175432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10891bbabca7003848ad10a075ab4e360beeda2a4e37362fa982ba67954ce65a. 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/QZDA52257203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2d539c7734325c3b37e5d6279ff75ac8af9193a416ae0385ebda635e54c0842. Chain 2 (Bitcoin): anchored in block 958988 (2026-07-21T09:08:06Z), 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/GBKPL2282194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x204b732a224ec844692017ec4d3b875252a2663ed04d361a17e8c26d5ed30a73. 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/GBKPL2282195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x202062e063961220dd218bf862f79af1d96cc2663f82d104a8256c0b6e5b70c2. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T11:45:01Z), 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/QZMEN2220580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x380395cb6ebd84aefa0fc0cbde947a4ea144026a67aea829a88085dbdedce747. Chain 2 (Bitcoin): anchored in block 958417 (2026-07-17T12:56:50Z), 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/QZES62371720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34f8643a82b05cb2f51f1ba7e4c758972a4fc3ac09d6bd24125acfd300564e2e. Chain 2 (Bitcoin): anchored in block 959065 (2026-07-22T00:41:43Z), 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/QZK6Q2383165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d1fb19489d288956f50d847d6259ef44c0e025c13f75e0e5d61035b856a9126. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T10:46:47Z), 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/QZPLR2366258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1491db3cb83a6ee2a85d215bacdb7fc9cdecbe518d3a378446e8e80e361681c. 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/QZPLR2366260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ce4b9daaef87296c6995f57d2b4a29f0cbdc11b01739adc9e7fb1cc8d877772. 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/QZPLR2366262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x681844084d01bc99b627ed1002434bba1150a8350363788022e9983d7b9242d6. 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/QZES52409204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f426607e04cc4963c5d59985b8ad2aa24f4266122baee622e651881f9137ede. 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/QZNWX2410621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2367c16b6e392bab63bd7ea938f1a16fe8a890f55eb20bac26445a65699f0c99. 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/QZZ762430726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a23cdbbbccad3090b0c0db17e9285aa63ebb8689126df047ef38ee21bef3c60. 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/QZES52513931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x506d6929f46052c941871408c9a4f30e37a793affc2addc0d5b9236ca8fd6626. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/QZTB62503883.
Bosco (Original Motion Picture Soundtrack) - Side A
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1564b14d961605b2aa4717faca8657a24464b89e8c61115cade50bc84fafa366. 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/QZZZY2400019.