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 0x3d3474cb0f1d62517a4b70d9e2463c4082c663a650da251d1705217985cd02d2. 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/84af4c31-e43e-409f-84da-5f91492fce7d.json and https://artists.proofprofile.net/proofs/artist/84af4c31-e43e-409f-84da-5f91492fce7d.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 0xd310ba73316e25326d6cd08c164b1f3b99b1b7fe932600696fe4c742f52150e8. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/TCAEA1840162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ea2330b7876049f1870c26771417a5aa00a063d0853b452319cc47d2b1019a4. 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/TCAEJ1937975.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0822eb967ba8edc5513c47610618215047e4efc6ab3102b40d68523ba2e621b. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/QZHNB2099569.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8308ec6ca6fb9740b4323160b63bec48dd65260e1fd8605bc568d41fc08060b9. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T02:15:37Z), 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/QZMEQ2045934.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40060953182b3d586ee86dcf8ed8e0abbe0d7b820ab3e6087a08e8a1923a163b. 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/TCAEP1906191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72cb8e73fc74dc5d0eb9de0cea1431a919f94dc0b2fd49f4c7cdcc556b1ca0c8. 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/TCAEP2074815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37595a06ee7ec2b9e43760c37260eddea7ed9bbf54e0914e34546075a5a58383. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/TCAEL1991345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65137f2cd6addf8099b184187acc087f74b5c4d1338ffa57145dee133e3ad65c. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), 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/TCAES2082021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda8fd4fec3dd1ca57618682a6097630ed4f5344efce12b75938e9f06de94b358. 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/TCAFS2133601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21d005f6ae362c3c6ffe04f83f8313d7c6c67c640f10b5176ecfd325059ff369. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/TCAFS2133602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d89e9c7ca458e847fd443bb7466f7c45ef3556f6035331f47e0d4ea61e4f138. 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/TCAFS2133613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4e3570c703cfefbcf1d9bc52ca712366439566ff4cb1c830b645f5e5066d542. Chain 2 (Bitcoin): anchored in block 958691 (2026-07-19T07:19:31Z), 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/TCAFS2144412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13acdbd5c2c73818985bf1d5029b0a9526f82948de5a86ff1de90343abac747e. 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/QZNWT2264340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5db99e2515b4b34eb31fef9dfbe61512610a8cf2b6c04ce3ae699893bec452b7. Chain 2 (Bitcoin): anchored in block 958907 (2026-07-20T18:46:56Z), 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/QZTAW2356110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c8164db352c6f19cb7ed26eb57a5e2bd22668905f749e073fce6bce30e38c2d. 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/QZTAW2356113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8892859e2d9834954f9e986732e3ee873917107eea8fb7fc09a2468c90d1750. 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/QZTAW2356115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x426fac267f1961f3ae0e5b0fcf641ab281ac6db88fc0b49db43b1c3994312592. 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/TCAFQ2131952.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf1acbe4db0ce85e869e6d151f32d4a9e348272f1e4a89cdeefce7b9c85082b4. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USHM82073707.
Turbo (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89003b359039707cc256c7671099e0597d57a08c2672a955436e8393ec2b0120. 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/INA982400120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6831fce4f748f2cb8a12253910c8228c7185198272c016bb5f6fdd970c427f23. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/DGA092326228.