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 0x3dfafd1773fc23204b2d7015c056bce08144b30f52c6e58e029bd404db1bc7b5. 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/e2562353-9316-4935-9c12-bacaff17b804.json and https://artists.proofprofile.net/proofs/artist/e2562353-9316-4935-9c12-bacaff17b804.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Hjulene På Bussen Og Andre Danske Børnesange
Julesange, Danske julesange og julesalmer
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 0x88fe0674276b6d6bdfab9be0c9c7c6931489477ed265435441ac3d61911bbb15. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:27:54Z), 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/TCAEB1968077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85969391ff2aedff0c6ed967c3e5f797ffd012c12b12b8807cf7d3f268ddbbd6. Chain 2 (Bitcoin): anchored in block 958086 (2026-07-15T02:55:47Z), 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/TCAEB1968081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22a51c3fa3d89c805cffc734deb909023407996559b18b3c142427616130c98b. 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/TCAEB1968084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x557e46b95bba93de5f1eea2b404b19636f7df557eaa73b5b20d7d74399d95ab0. Chain 2 (Bitcoin): anchored in block 958142 (2026-07-15T10:09:30Z), 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/TCAEB1968085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c1ef95a41ec5b0bed99aa46b1278ef3014824960956024ddf7dabb610e64469. 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/TCAEB1968089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee074681937a589429f962010381865f4c24594753366720d3101cc7cab7a221. Chain 2 (Bitcoin): anchored in block 956405 (2026-07-17T04:43:08Z), 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/TCAEB1968108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x809fb65d466107b4a9794183505a382e98d2c51e1d7bb8d8355f499df898a182. Chain 2 (Bitcoin): anchored in block 958506 (2026-07-18T06:14:51Z), 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/TCAEB1968090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x753d706bf186b8981965a60086565ea7148a6ac6cf3b34bc5b4543a7515a6720. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T16:16:46Z), 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/TCAEB1968091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8607ac6ff83fbbced6c4475ae41e7e14dbc68e32f3919a67386d77be962d095a. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T18:28:33Z), 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/TCAEB1968092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e2902fe817f753eb7cd3d4166bb832aad7f78ad1e46bc39b1ae22cd30e6ff08. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T10:15:55Z), 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/TCAEB1968093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb903b3720d499bf89b235f3501eed73bfe4637342377151b367afe909c71a2f1. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/TCAEB1968094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26b8c43b1d3778665e9f4e2ee9995cda10db46ef4050baef6c7d4e3bc79a002d. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T21:50:40Z), 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/TCAEB1968098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe989820c119b890bbeeec540c2e50eab97b097508c0797e5babc1596c2ab111b. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T06:57:15Z), 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/TCAEB1968104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61698e1384d035e076a8b78cb28befa1e31b1a8c9afd47383a6d4d43f2bd92c9. 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/TCAEG1937385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47b3cbd6d31ab8bafd4fa1da5c99f59aaf8a190be80049231682e707e106ef43. Chain 2 (Bitcoin): anchored in block 958514 (2026-07-18T06:54:37Z), 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/TCAEG1937386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e1ecb738f7d619610ef524c598fae58e68026af0f7354515542c36932c9547c. 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/TCAEG1937387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x382c597ff3bb8467b18f0c58bc5badefefb313168972e293863efd3de594e643. 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/TCAEG1937388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85e9122b4f3b97ed66e6cbf22c4e60d173b92d0451aa6aff0f922199b9460eb8. Chain 2 (Bitcoin): anchored in block 958571 (2026-07-18T15:39:25Z), 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/TCAEG1937389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeeedee86a70385399f99fb94de8f84e070f74616eca52b421f758f7265cce5f4. Chain 2 (Bitcoin): anchored in block 958822 (2026-07-20T07:06:47Z), 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/TCAEG1937390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf117b8b2b166b5ab404bb2969cfdaf4fa0a2df02a3528e0e6f6a99b64d4c67c8. 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/TCAEG1937391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6a2eb3e2d59be1c88e7133c80ee810bb7de950bb7827ef25a1b889f8ddf8202. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-20T01:36:33Z), 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/TCAEG1937392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda99341e05253e8e4fe7eeea95c2dadca111eb5769606df27c4d8533b9dbf67b. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:04:50Z), 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/TCAEG1937393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1132b7f08a9d8b46b5ac5d2d699c84f50744e270d6b79fbd528d83301e167441. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/TCAEG1937394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ae51d534b3fd888dbc129b6b1fb37f41f2bab88577db895155e50a57d6b7796. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T15:48:23Z), 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/TCAEG1937395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7ab0e32e665b31736b7935a586a0eead92bd0971870da1e0b7422424f9bc53d. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/TCAEG1937397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x490aac510172ce2a75df45afa615e772c1c04bd7e6e5e4bfb7a5a9061342ce6b. 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/TCAEG1937398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x309f0a2fcf8e24e5afdf9ced9e9d7e4b760b6eaf7531db681b2db328c1078a10. 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/TCAEG1937399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4f62504e8da09a67e0d202303e2960c0fe892c95bc18efe5c1cfdaf28c9e38f. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T06:27:23Z), 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/TCAEG1937401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf2c5383c789672f30b7a061dd8b16047661f9ce9b63c6e0db754b95eed45d52. Chain 2 (Bitcoin): anchored in block 959052 (2026-07-21T21:33:53Z), 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/TCAEG1937402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15cc122e86d32aa11112559765a8bb44a74c7e07d3e9ee5116cbb1995b976c9e. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T15:07:23Z), 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/TCAEG1937403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ffbbab3c4158e84757ef5127ccf3b6f1ed30f1913928c6030f66ef233c042db. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T13:22:04Z), 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/TCAEG1937404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdacddf0c8148e26d5db089fd4b5c85e5f9c197732fbd54f3a914f6f383cd2996. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/TCAEG1937405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x062a4982d8fcb11a9b633c8fd62ff74c59ce6af761f2126eb80bc39377763c44. Chain 2 (Bitcoin): anchored in block 959088 (2026-07-22T03:49:37Z), 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/TCAEG1937415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9a3e09c61ff8de21e8223bc67a31aa8d7db7398631d617548912d84c5839cbf. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/TCAEG1937423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadc7b4817e83e3a2f24ceb3ddfa90fb1e13aedc72fb8cde754f7fe534a90108f. 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/TCAEG1937426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c39ed7640469bf2557e545008898f69d629a15a9b8785ed3522d034cbe0608a. Chain 2 (Bitcoin): anchored in block 958971 (2026-07-21T05:04:56Z), 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/TCAGK2297033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7033e421b432b6307adba52bb730375aed4e557016fbff7bf2e6c673209c36e. Chain 2 (Bitcoin): anchored in block 958965 (2026-07-21T04:29:05Z), 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/TCAGK2297036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa153502c5da37519fb8d71dd7d5c97da94ed488102eb7fae43eabd9105f444a2. 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/TCAGK2297028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf9d621d333cf02d5f9f4311c492db57ac091c18d75eb6f78256186a8f0ef7ee. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/TCAGK2297039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02548aaf3fe795afc70d919a86230097f115aa4e79dc6a1e85ff4d187c16b9ec. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/TCAGK2297038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x445367a9e0cc220298ef97e6ed6a488ea4c5294a9520b3180744096dbace9169. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/TCAGK2297017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x895f81b006f2aa1d3f9d604ec2fb98cf2a459849065ec75ccd30eddf1023c2f9. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/TCAGK2297010.