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 0x229f47bfa111bd9a78b86d052cf7a03c01a0627074b4b6921d2beac69f87deae. 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/6eb65ff9-ee79-42dc-a6fd-b3ab359479a7.json and https://artists.proofprofile.net/proofs/artist/6eb65ff9-ee79-42dc-a6fd-b3ab359479a7.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 0x73b00af0b114e3866c33b6bb51ebf10219e48576c80f58a17c48780a8e893605. 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/UKACT1863482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f3eff355f7d05045cceb0995eaf58ab70e755bce52b9a07caaee71eb630c2cc. 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/UKACT1863483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02735fd91fe25f8c0ab25e4e07c610e2261f92d5e32d17ad2b4cfb465527ba9d. 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/UKACT1863485.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x683c1064cc9ca9cf204ec780d15274ccf7568f92117ecebe7ac94a4003a6af43. 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/UKACT1616188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa59d60f0b7bbb1b65426b7c60e0986b52eded8c4f491ae3ca227568763f7a41. 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/UKACT1616190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6f70d7ac565ae22651bb67d1dea1f469707c1a88da4ec86aa925a711b81a5a1. 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/UKACT1614050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b707251967c4e6b8ecb88013dd52613be4dd46590cbe74ab291267374c2befa. 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/UKACT1614051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae9ed91c77a3a56c31c861a0b318b54a02e42d79212f6c58d0277bd0d53f0e90. 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/DEGL61200034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb81e7f26a15630017d603c3924ed3cb0bdaa954866ab4aef52a718714c0b11ec. 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/DEGL61200036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d6ddce36c5d0991a1c78953dc4fbcab69459251ce2d0334b11bc0a226bbdaaa. 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/QM24S1805897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35b762d5482bce16614a81c21fe5f7b5812b2390491e86878dabf7c66d3df2ee. 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/DECY51180593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d3de2efbf19b31793b1c97b7405f62013bd53b90dce356cafdd3dfd1ebfaacf. 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/DKK641800108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb50c9f011bc365aa3a8f05cc86373b039bba96717cb88e9ff283df08cf73d6bf. 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/US3Z71750301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fb20e9ad30e052414ad3237b65144d3661816a069834f043a4f6c4ca0c54d45. 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/GBEWY0900064.
Shir Khan Presents Dancing and Romancing
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf454169085114b80271cabfc534744d3184c295732f4f6abe8ecf01339638924. 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/DEGL61600090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58a947db50edbd20e89ab6997fb47d0a9cdb485c841d46e4c4ad71eb7d4878ca. 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/DEGL61600092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x557bef2e3e3851f5905134352bd9172fc79dac31169eb1c62f8d314491dc6b0d. 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/DEGL61600096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7f8e19d7af08faa7733b5bf0425761ad6c6b41ac937f0deb5d38134a5902aac. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T19:49:33Z), 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/DEGL61600101.
Music Rises Up feat. Stee Downes - Claptone Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9108c32328b77713c5868d189bc40bec0f4fa4a6880b24518e76ed42c8859d5. 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/DEGL61600107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cc64fe2129219142f70ec0a024bf7334a422e71a93d1d7c992f40f2e65013f3. 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/DEGL61600110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49ff3e06104752b0f9d4002f4d93ae46b7c1bffa88ace4da90059dbeaadb7cc4. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/DEGL61600113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4285e3421d4f2f332a5f583c08c1015d3742565cfeb350939fddc8c63bce000d. 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/DEGL61600114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a91c126f144f611de9c78fcda18198cc6bb82d7fb968530ea16b3bfa401acc4. 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/QMRTL1300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6885340808892807c1527231394b074e144160cbb809f3442368b5fe264c0db2. 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/GB8KE1956430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63fdaaf466b1f11ed15d8ae69aa5765cb2a9b6fe366e9b25707168474905a4e7. 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/GB8KE1956432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbba4d600f28b6918e6d94984c776d25730b3df9be56851b3b81edc646ca04ecb. 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/GB6LY0900145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35776206c31ba56df2b0ca95d0093026040a432c008a68737f5c1a498e369f10. 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/GB6LY0900147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82f71f44ee77b4b3efbd05c7758d99ec01972dc437cda246368b754daac5e207. 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/DECK20900902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9776448d56e41b7545ea834d6db308519068863353857c57eee0cebbb7b6da3. 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/QMJYS1300054.
Defected Radio Episode 115 (hosted by Sam Divine) [Mixed]