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 0xbd3e827c100772c8ca06a5faca36857bff0faefd40b7f388459e0f930ba2bdb3. 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/60be205f-b0c2-486e-889e-e531227249c6.json and https://artists.proofprofile.net/proofs/artist/60be205f-b0c2-486e-889e-e531227249c6.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 0x7f328ddf45310e61ee3c0b364db4a292fc3ae2f89dffbcddffafdd70add4b7d5. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/USMC18723754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c38252e021dfac6171bca7ab30ce7176d297235a6a64099617c237bdcae409a. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T10:33:15Z), 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/USMC18723755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9457da884edd5697cd78cbdc3f5003916fe6ca64aa5862cd74e915e8e7502b0. 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/USMC18723758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f4150f0a4f9ff6c54eefb1c5e9983a4169aedbaba640e496ea77bc17319946a. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T03:38:31Z), 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/USMC18929043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf199b73f177d10bc8525c85e34cff3054c2a273c2f106f6452e52dae19e6078. Chain 2 (Bitcoin): anchored in block 958756 (2026-07-19T19:02:33Z), 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/USMC18929044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65a68704075c77b6e310bea627fc6cd1414735f109e1e408d72e874ed69eb41a. Chain 2 (Bitcoin): anchored in block 958069 (2026-07-14T21:37:55Z), 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/USMC18929047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8575cb477e6f96029ed63acd255c33b597a8f7c49725d5c2753fccc804632842. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/USMC18929049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23660516045772a3c922e8233ecf12611763a94ba81b03ee59b2e25af9844cc2. 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/USMC18929050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22a550f0bbbf1c84a128c5f99f937de6b35b0c5db09f927588d62083abc08ce4. Chain 2 (Bitcoin): anchored in block 958204 (2026-07-16T00:26:53Z), 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/USMC19134842.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6a323816cf80e02fcbdd31033c1416a7412f919502f179371fe4c747ee8da14. 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/USMC19135818.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa42f2922e49119fc4f82f65d9e6216a10197940bae85b7f60e5156ff6e03d78. 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/USMC19135819.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa89a29fd2d8ae4a41e0d2a27fc63e6c98d090b31e2e8018cd3f708bf929b8aa2. Chain 2 (Bitcoin): anchored in block 958891 (2026-07-20T15:57:16Z), 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/USMC19135822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd580af25c291828bc7eb7b7c5fdc8534b28ff5d0c38a9743b2238d68b074dc0. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/USMC19135825.
Somebody For Me - Jazz Lover Mix Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x515cacab0d6082b012c1570559c8ef00ed6f6850f1cb0ebfe49874a275c6d871. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T04:37:13Z), 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/USMC19154184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7992cb761013da209e0251facbc40ba1d020fb92f97cddaf1b8d866d2b93d302. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T05:55:09Z), 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/USMCV0300572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaffac4c2a34bc0dad7b1d4d0f94804cb4cb58ea28b6f51bb467918ebf7ff0449. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:07:37Z), 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/USUM70978257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa23a0161c3580d88a2977b4ea113830389e1bfd8fe6141d45ec10b73783876e9. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T05:02:05Z), 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/USUM70978258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2652819eef55ec4049c9dc14df9f71d4033e478138fb337f7213cc12db14459. 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/USUM70978259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfda328bda3d2885acda6b0ff3b95a05e5d6649e149a86836039ddc3d3829d4cd. 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/USUM70978263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c3f929e0fcd9a006aefab7f55bf8958912d2af4b5f200912879304e64769170. 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/USUM70978268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf435603c600c2505ea3227510e5b75ff8d570ebe25b51cdc12fc68a7c215d7e. 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/USUM70978269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e22d55587f5f18df531e57025c870552e549a519c291d10b9a65c86f0f595dd. 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/USMC19442476.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ad278df1738c9e638af3e9e5b8c85227f349730bd502c8f45d518e5766fc8f6. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T16:21:50Z), 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/USMC19442478.
20th Century Masters: The Millennium Collection: Best Of Heavy D & The Boyz
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d84395f1da2d7e447b3cea5b971cf05af804f95d05db8078bc3611df4fb06a0. Chain 2 (Bitcoin): anchored in block 958907 (2026-07-20T18:23:03Z), 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/USMC18723752.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe56f28a6e9fb8755ca12de696ec9e546dd07abd8cba397bc2a8f3bc003cb04c8. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/USMC18723763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc50bf32ddbe6dc17345f6ba2882fc7aabc66c059a82cf737b42280f208cd28bb. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/USMC18929041.
The Best Of Heavy D & The Boyz 20th Century Masters The Millennium Collection
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e712f38bf4072bbfc21f4690ff1a2dec30ef4624a685ed3dee746a58456df31. 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/USMC19135275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a97517639da07db3a42791232a60848a1af644c40839d3c1dd8438ff4c5f238. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USMC19135589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a97517639da07db3a42791232a60848a1af644c40839d3c1dd8438ff4c5f238. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USMC19135589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23c11fb298aea82d03c6780c309bc22c28116ce271ac2681c155f73c40a76209. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USMC19442475.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a97517639da07db3a42791232a60848a1af644c40839d3c1dd8438ff4c5f238. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USMC19135589.
ドライブが楽しくなる洋楽ヒッツ！80年代 Hip Hop
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x336a9991519c774afc092a0234fa7ea26a31a5e6c3bc2eb4c0b74d56e36b7d33. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/USMC18929039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a97517639da07db3a42791232a60848a1af644c40839d3c1dd8438ff4c5f238. 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/USMC19135589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a97517639da07db3a42791232a60848a1af644c40839d3c1dd8438ff4c5f238. 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/USMC19135589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59396fa3fe95c832a2cb634cd584ac8251fc0d01b98e311fca457e9b8ec1849f. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USMC19442481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e712f38bf4072bbfc21f4690ff1a2dec30ef4624a685ed3dee746a58456df31. 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/USMC19135275.