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 0x1ee8cb0ba3727513d247aeac35b0110efcd0e7dfcc712b027652148b3aaeee69. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b942ace8-5ab6-4a23-b954-78d618c3ede3.json and https://artists.proofprofile.net/proofs/artist/b942ace8-5ab6-4a23-b954-78d618c3ede3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
A Swingin' Affair - Modern Standard 2002
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 0x61e875ac3e0a811ad24201b1c85438870b7df8d7ec4a2aa0da29dcfcf21e7c56. 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/GBBFY0610426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25038aad984c51ec1f5a32f1418fecc4769af02f2b6d8e8ffd7e447770b734ec. 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/GBBFY0610354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7920f01d0ef21c93b82acd5cbace98a87426c7dd963dd77798a8ae258a9b651a. 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/GBBFY0610781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc40bf8da2ac66064adc24a0f923e0f0abbd6faf6d528e9aa3ad2e2ab0a5aa930. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), 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/GBBFY0610786.
The Blackpool International Dance Festival
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3699302c9014ba2b729683956157c9072ca7e1947c531c867a00644f5788dc97. 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/GBBFY0610814.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73581c9effbe9e365e1a137f05243886939e3646d1ebd0f6d2521560055c65dc. Chain 2 (Bitcoin): anchored in block 958738 (2026-07-19T16:03:32Z), 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/GBBFY0610818.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2c64c11aabee972a68cf67111522760c9b49bc7701205bb5b4f792fae7a63a2. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/GBBFY0610819.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b1e4e3a51e3f08bbab23b03c6ec0fa6df2c01d9aeadf9bd635fda7bfbc3ea57. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/GBBFY0610820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0aa0cc008d923c8b56d845193097cb9c52956775692cf108427f46f4e14d236. 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/GBBFY0610831.
The Blackpool International Dance Festival 2001
The Blackpool International Dance Festival 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58a7f6c426838cae02734ffc45553c0b26f9eb71d94fe413b5f03ebde162f30a. 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/GBBFY0610503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3fb5f5fb83d4b212bbc02ef6b0ce3288512a822231cef30119cce780a1c6fe4. Chain 2 (Bitcoin): anchored in block 958572 (2026-07-18T15:47:37Z), 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/GBBFY0610337.
The Blackpool International Dance Festival 3
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ea35f004318eacf68a864d2043a1d8149a85e1e94886e2e43d66b2b3ecf1c36. 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/GBBFY0610931.
25 Super Rumbas The Ultimate Rumba Collection
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1268436820cc6c2b610032aa5023834f8c55382425e14ba1fea32a67c6be9ed1. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T20:12:32Z), 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/GBBFY1100253.
Tonight I Celebrate My Love for You - Waltz - 29bpm
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa06b3dbebe80857977e46699bad5391d33c8e353233e80190e39d8bcd6f4eb0e. Chain 2 (Bitcoin): anchored in block 957892 (2026-07-13T18:21:16Z), 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/GBBFY1200015.
Blackpool International Dance Festival 2012
Don't Forget to Remember - Bee Gees Tribute
Dream a Little Dream of Me - Foxtrot 29bpm
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa034ad13fefcf4f7669f2b5a1931a77c01b333fd92f72414a68c7f78cd786b7. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/GBBFY1500066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d21df1b5402ddf74c98ffa428087888468ba21e2c906a2ff2f2c1f3e1ab318c. 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/GBBFY1500110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc9070cc8c206c9c722655ebbe8a5a41d0f31f96ef72a15ef202ebbf0bbfbf67. 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/GBBFY1500120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b2f8a8e3397bafc3e0a39af729d6fffa61aacaace1751b5f0c37d0d8158e7d3. Chain 2 (Bitcoin): anchored in block 958738 (2026-07-19T15:53:29Z), 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/GBBFY1600012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f0378793a5021ec65b09cb5429ea231f8e038fd7b06653439da7f5ba8361ade. 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/GBBFY1600053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa828e8d3cd90c4c033a0404984f86081bcf71a15c96725a5df11b0a3b2f675e. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/GBBFY1600056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca73aa5b996b45f4c93ff9f2bc623b3eda216d5d5096bf145f80d8ea0e30e2e6. 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/GBBFY1600055.
Spanish Gypsy Dance - Paso Doble - Insstrumental
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99f6f9de3727e2546bff4e3f9e077d8e657c2d10e4da67e3dda38cb31d932234. 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/GBBFY1700159.