thumb|Adolphson & Falk in 2019 Adolphson & Falk is a Swedish synth-pop band, fronted by Tomas Adolphson (music, vocals) and Anders Falk (lyrics, music, vocals). Greg Fitzpatrick (keyboard) and Dagge L
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 0xc5570085858ef6f2af4c9900d8eb162ed963a7e8d7c4183174e7938dbec5cadd. 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/791fd56a-b543-4429-9409-5fffa178a609.json and https://artists.proofprofile.net/proofs/artist/791fd56a-b543-4429-9409-5fffa178a609.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 0xd47dcf8249a196941560a387136455cca056c88e51b1d64d1bb380e090bbfec7. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/SEAAA1000302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31e5f49c2d3bce5a024dd441f0df762c6e85dac5b013e3dc7257dc98953f91a1. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/SEAAA1000303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbf1686099c09d7a549d313fdbd4e672005c191276d63024ae3969ec83bc8eb4. 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/SEAAA1000304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ca2051d2becdca45b104474e56a84de7038128b8f98b0d26ec02f38d2a44bb5. 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/SEAAA1000305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13801c142a9021aac22b74d3532d4d5cf2a716965ecfa8d52e06d560f3f9ae2f. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T03:53:12Z), 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/SEAAA1000307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d92c0eca9d64e59565e8ebc623e5d9e3e80c67ba5969e52a0586f503b522f92. Chain 2 (Bitcoin): anchored in block 957771 (2026-07-12T23:27:28Z), 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/SEAAA1000402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75c77137cd5836d0c85381ac37d9cc59afca587be01391f5ae52c1a437fc35b3. 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/SEAAA1000405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51ab33f722faa40ce3bf20d77b71e987a8cf14b4cb26058249a6ac85d3e8b659. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/SEAAA1000406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe603914d24fdc79393b562be639c9b53b1b410125b5ee76e9b7a673f0bdbdd5f. 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/SEAAA1000407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5d74a33ca4852de4206522267029f4149d9d52fa030ec3b0d683475462806b7. 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/SEAAA1000410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ede3a3384db61ba0058b9e16f34685f38257befae900851c2bc99a1e1143dc8. 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/SEAAA1000508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e826531300704e568e2c38fd9f3aa00adc507be60e89f16099a98cf1a115500. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T05:05:12Z), 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/SEAAA1000509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89b1cb14226f59ea2f438c97670427aa879f4019d195dd6960b2dba47ef59590. 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/SE3OW1600117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27615918b8672cfa0cc491742734636833b8b418cd37940093a8723b6e394f91. Chain 2 (Bitcoin): anchored in block 958325 (2026-07-17T00:14:06Z), 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/SEAAA0603040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b6f3d394fa50b9ed0fa8000a30f16bcb18d582b63c00535703f7cbf875e4dd1. 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/SEAAA0603070.
Du låter det ske (2006 Acoustic Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06b6ae4d7ce8d4faac955a9450e13cb557fc2205055f00ccfa89ba7b73a5b78a. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T13:09:57Z), 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/SEAAA0603080.
Stockholmsserenad (2006 Acoustic Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0702324689e09a1128cc8f15d44f7d697a593883b9e05b1bf4300d7f139298ec. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T16:14:34Z), 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/SEAAA0602030.
Ljuset på min väg (2006 Acoustic Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf91e70cda51f611d21f971c6229604f1f438903224857aa627424298fed366a4. 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/SEAAA0603110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b8ee2e9baf7418c44af052751f8b628745d2331b2cc020aabf5c6d35f5b2580. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/SEAAA1000306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf743aa5aad4f94295aef96a9734978def50079225d54ec995dc391a134d3acf. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T05:13:25Z), 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/SEAAA1000308.
RUN, RUN, RUN (The Streets of Stockholm)
Run, Run, Run (The Streets of Stockholm)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x021ef9fe955f5d5446b021e3570603637fc9597c535bf439b21eb380377a7651. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/SE3OW1300258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b450a2ad93a0b102097ccc04424b95a069017c58849dd6e283fcd1b35a47132. 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/SEAAA1000411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31a4cbe281de15908ae64d731c58df876c635961717e77f9dcb6ef68e2fd9a1a. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:36:30Z), 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/SEY7K1800101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fca84267125625ad3daae24290d4c166788a46e4399a002aef23657862b2489. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/SEY7K2500105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed8107b53e34061836c09b76b7a70a4de84de7d433e85244b9a43d3e01b3a33a. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T20:38:50Z), 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/SEY7K2500101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffa4b881b9e6547ddc7622c6c19259882d1d89fac0a68720ac3cde95eefcfb52. 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/SEY7K2500104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fca84267125625ad3daae24290d4c166788a46e4399a002aef23657862b2489. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/SEY7K2500105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x360b8702c1f666e7ef9a9eb8a8ee9dc2882a3c9457124cd7a49164053e06a0e5. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/SEY7K2500106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68f3056e1cebc8aed517ca8f4253a1642b05707d490e1e9f8cccf5e1fab0ec93. 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/SEY7K2500107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9233b16c17ba84910d55422803715c1994c988e25c3307709cf901dc7c94262. 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/SEY7K2500108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde215caf3d04cc033cf8fd94fc5ae62b5ef6a71183c0c67dda8d7e7bd98b7978. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/SEY7K2500109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4a114a4ab135e7376af1533db5b6d2cad4e603d40de0393371f64561e64c994. 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/SEY7K2500111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd558f628e0a6b224d6a9d48bf73a9be3577dfed6762b7d80d1c23ac039080a32. 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/SEY7K2500112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87ad8fb14dab25495f817cb02b8fe2874f49c7724e523dc17df53d924d7ae343. 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/SEAMX0300718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbccf2fdf22f45c00e29edbad34b9f1e6f21ee52f89623dbd78047b558d70bdba. 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/SEAMX0300721.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x452fe60a29501b24aeb7f97a7975c56386ed1cf410446f691192e41b56c36e16. 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/SEAMA0600749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e2eae5963dbaaf86ec7b285b822f5eb8715bb840aab6a0bccaf8f3554b4ae0d. 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/SE6SA2384719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32be413c4cb43fba1d08326a7eacc1561ae5372cbe5b660beaa786c97d7a8d42. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/SE6SA2302324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e2eae5963dbaaf86ec7b285b822f5eb8715bb840aab6a0bccaf8f3554b4ae0d. 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/SE6SA2384719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc5267cd9f3f6a94493e4887c27ff9bd96157e091e7cd59bff4f230127a62e0d. 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/SEAAA9603171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9aba01482bb47a83a75ec02356881bba543b1c7e69d01565b37512e27ae5d6b. 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/SEUM71100471.