1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0xd5d6e1eaf11fb168754d426f6c330f211ae6ed31b76e097aabf477c4e07991bc. 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/481731a9-7100-4c93-ac13-e8f9890c193e.json and https://artists.proofprofile.net/proofs/artist/481731a9-7100-4c93-ac13-e8f9890c193e.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 → block OTSBitcoinBlock must exist at that height 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 0xf84321b76a601f442608e04ee3c58ca330dc1a02a2266631ab2d4849e04193e2. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T02:12:59Z), 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/SE5BU2499650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1a999a117ea8b2246142697e5947a061d52aa49c5b6d1f061641decb271eb0a. Chain 2 (Bitcoin): anchored in block 958251 (2026-07-16T06:29:25Z), 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/SE5BU2499651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b639b5e8b42140628a731910cc971392d918fad416d31f30f7f7b799b2535b2. 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/SE5BU2499653.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94c72da652fcc7e48e661e4b4b4fdf29cb60d45dc7cc2a6ffbe4c331ad6d46c1. Chain 2 (Bitcoin): anchored in block 957744 (2026-07-12T19:15:44Z), 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/SE5BU2499655.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2aceae1f8c6d6ab11ce777482e0acfbf5a550577392519ec43245cf47e410a4. Chain 2 (Bitcoin): anchored in block 957747 (2026-07-12T19:35:06Z), 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/SE5BU2499656.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5652fb2bda5b60669cae47945994bcaafaca262c8f11005f7f236e6e24a87615. 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/SE5BU2499657.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5232ac3980564c38ae8deda3c9ab01b90cb8ed85b932b783e8c83a404b960a6. 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/SE5752409348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddc25cb948fcc639c57337554f328f9315224dfac80fb851f924c7fd2f129259. 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/SE5752416291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf7375e1b6e751119e8d702bff3d2308884f881295d2ac00a96bced1e1401180. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T10:08:14Z), 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/SE5752416297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ac07f8cbcccd8e75ffbb0eefb1b36ea0b726e866dd7489a1475b528c3a307b6. 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/SE5752443496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd255ceb760dbb003eb95b1f3e5de157f9601ab6994c659ea6c77045a49d81658. 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/QZTRX2422054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b539ae6515a690bba9ecd52b8e0a6a331601c783e9a6baf90c2d055e69bb55c. Chain 2 (Bitcoin): anchored in block 958346 (2026-07-17T04:09:29Z), 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/GBWUL2499406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a36499d7af2ebe133d705f7c2c3408179b988e5c66755129c8080aabc8d048c. 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/GBWUL2499417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13ead4027276a153f8851eb98810c2c7e4f84b6d026e450155daaef087d7ed5e. 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/GBWUL2499423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3ef8162df376b4eca34d92eb174107107273bdb328d8f1d947243eee14fff21. Chain 2 (Bitcoin): anchored in block 956859 (2026-07-06T01:42:12Z), 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/QZTRX2494381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd255ceb760dbb003eb95b1f3e5de157f9601ab6994c659ea6c77045a49d81658. 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/QZTRX2422054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17316ee3a7865412d3a30d4404d4b6332eb93900f46e474a466eda8eb3cca1de. 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/QZWDD2435389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x512b7247c0271ceddc28393e52222e5d23672ac4b1408a02a4fca0f05558b011. 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/QZWDD2434857.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fd8a530ee141bc18decd409f3b4168a50171f99a0435f6915a294da6a80bd13. 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/QZWDD2434865.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6df98a0cca49dcda483c3223c8a169026fd9d95b3226d9132ca5a62d3946e0c. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/QZWDD2434870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b8cf42009f244a00828399d1ab937b110dc625c7e6914bc433b91a33a2b8171. 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/QZWDD2440149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd685c48a298b287ff318fc7a6c6a08050b3194845119b889020c1a95435f5f2d. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/QZWDD2440058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac7f278cb1b9f5fcfccb14bbecc8efb38d2aa17b1bb3ee26e21e3302d54ece71. 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/QZWDE2400540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ece365ee4c3a4f040ce6e2e51b6ae0a3110dd4e1081e13afd7937316dd25c29. 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/QZWDE2400543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0694d4787b647c086261998cc0179f6d8c7c9d1a771c3b6244c54867a5dc868d. Chain 2 (Bitcoin): anchored in block 958075 (2026-07-14T22:55:31Z), 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/QZWDE2484365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbcaa8bcb5789627fb47ebb370e9c5bf67a579782c0342395f02a2447d79af59. 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/QZTB22499018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca298b25a80c7a8ce5ef4e84a3572b7bea17ae7da61d9684ddf8496f3cb18d4c. 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/QZTB22499019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc4cd9ec48008fabb58a29b8527acf5b8076dbf951f9a39ab89979419b25d7e9. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T03:42:52Z), 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/QZTB22499020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeed0031e906d0fa620c7d62e131be579cd1b688c4c308e2492227d5d932b448b. 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/QZTB22499021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5c43f5c9a7a9fcab4031c21b88836a1798f1d453cd1e33030a628bd5d0f5e8f. Chain 2 (Bitcoin): anchored in block 958371 (2026-07-17T05:45:43Z), 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/QZTB22499022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48a9093b0036ed62d02634bc9828663506fb6969d6d3ce8d763eef3edba908c7. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T03:24:52Z), 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/QZTB22499025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb198519b8ec6f607641b4b631d145262469498913bfda0cfde2ed3288a12ec54. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:34:17Z), 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/QZTBE2450520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32f5f93c6bf53de95acd0fc8496c37a7c44cf3d061772c3e8c8ffe040780d6a9. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZTBC2460615.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3df931c8707efc006752f4d9224aef193681df0f1340e61c9e7c22ba554e215c. Chain 2 (Bitcoin): anchored in block 958075 (2026-07-14T22:55:31Z), 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/QZWFF2415017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37672b45f9e1f2ac12eb39692f7e148eca9b80b9e9f52c4be97aa48125edec08. 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/QZWFF2410178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf080441f88b3cf92a40a3ad1c91d2385bb080a2df11a756df562769987c1dedf. Chain 2 (Bitcoin): anchored in block 957852 (2026-07-13T11:25:45Z), 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/QZWFV2461010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd46cec7b15a1bb6217d4bc121b155c4a03d34c67b9adbf65ace3aff01c804294. 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/QT3EY2413006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee148d1c7a7c014ffe7f90ef7471b90c9299e87a6e44b0e56ddf269adcbc6cf9. 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/QT3EY2413008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad8679f1eae7f6e7cd61da9720240bf281d192d3b3333d845c3c5c66e47afd8b. 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/QT3EZ2493130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x919ef090d5a0c3f98681c794f69cbc9bed2b37e801f416e58a9a6b45a167e26d. Chain 2 (Bitcoin): anchored in block 957744 (2026-07-12T19:15:44Z), 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/QZES72519300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd028b22acb2da6af32b95bec57541a180bd89dfca184935197ea10cb88b4bab4. Chain 2 (Bitcoin): anchored in block 957782 (2026-07-13T00:52:48Z), 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/QZZ762539295.
The Indomitable Guardsman Spirit (Acoustic Version)
The Indomitable Guardsman Spirit - Acoustic Version