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 0x22d42f626a991b7d126b29fa0a9178e89bbab316a821245eda1be398987b7b48. 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/87b482d5-c232-4b95-a9f8-79f1c366eedc.json and https://artists.proofprofile.net/proofs/artist/87b482d5-c232-4b95-a9f8-79f1c366eedc.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 0xff555e18f067eaffd0a9b2f5bff03824eb31d8eec769e9b05e4cb70e246061e0. 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/USI4R0401731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb59d729ddc9d9b880873d23e93544b3cd32ca3b837905b57550c702e6730942. 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/USI4R0402031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x425ebaf7e72efa00d65e7eb9cf6dfe7f7f5d4e439f080138f2a411aa4eda52fa. Chain 2 (Bitcoin): anchored in block 958908 (2026-07-20T18:05:16Z), 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/USI4R0402032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5977a0cd9e9fac4815521e5dd90ba60b2b913ae551984dc09b59b980c9b3db09. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/USI4R0402033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61d49e237b2e504d65f43bec4192b8f797bc854035651073feab2a5281923e33. 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/USI4R0402034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58756e0b1d6ef19a0bdd1e46b75f0341fbb048c92616bdf6191cccaeb5366029. 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/USI4R0402035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x913e723aba88bf763649c1be4cc482f46564801466cd26bd9d2c940ea0bf2015. 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/USI4R0402038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3f8ebe06651297731f52e12250e5d2c6f11e5bbbba4bd58fb586cedfeb35ae3. Chain 2 (Bitcoin): anchored in block 958891 (2026-07-20T16:23:28Z), 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/USNCB1922502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d80086c82dfc39d232eb30005ff8ce91e64ef321c9187553e5b0579dc8271b9. 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/USNCB1922505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f4a2119fc50df53bf7959c0bc620f119b5e9f68a46f7070af50b2e2dbe0d7d2. Chain 2 (Bitcoin): anchored in block 958891 (2026-07-20T16:05:22Z), 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/USNCB2223202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd24ad1803c7302b8db05231534b22520685bf4d59e870f758424f3373033925b. 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/USNCB2223204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc23804f34408b35ada1349efe9f0d65f15545e44462f43ec60139367102348a4. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/USNCB2223206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1493c84405aff35aa21ca7947fed06d8dbdad3c1fed35e1c2b89ca32527befe. 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/USNCB2223207.
Reverberations of Non-Stop Traffic on Redding Road
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d1efef831237d91f324d0258932da5d8a130ef429a0bce5d187046e30b7f7f3. Chain 2 (Bitcoin): anchored in block 958832 (2026-07-20T08:27:40Z), 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/USJZA2480201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2582f8732108fdd071ce0eaa45d57121c5278f8967abe88c60108e9f4fa2d4ae. 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/USJZA2480206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fc857d4e960ab47c8ded9bf39ed48cb49c9df2ee39b7a4c7f68c03561ad76c5. 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/USNCB2524501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f8bcb6b1535f58da980eb3d90844a159c496126aab9849c355d54147f11596f. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:38:44Z), 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/USNCB2524502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc256c0f1de65544ae4218b7ba767be3dae85e4e0fd2c2ffb59790b544727dbf. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/USNCB2524505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9007e8dcc0f4053e2c11c0b2ae40ec5c935dab8191770a78f33899a90cccceff. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:00:05Z), 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/USNCB2524507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf28c0c406174d489ebab3cc2f1ceb131fcf2e84ae4c5dd1cf3e54d622b7e4fa. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T17:59:29Z), 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/USNCB2524509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x814169624f6e024dd0270a0cfa8f7d5c06fb973d6af87877275fcc3896804b59. Chain 2 (Bitcoin): anchored in block 957779 (2026-07-13T00:19:08Z), 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/USJZA2484301.
John The Baptist Was A Creature Of Habit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x477cbf2c2cbc81e0fba3a9be911077396096b400aca128c4aef0964259ec75b0. Chain 2 (Bitcoin): anchored in block 958087 (2026-07-15T02:56:49Z), 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/USJZA2484302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd31dc6ed5f8fd1b011089487df7b7d56ab66e960026468890147a9e9f0fa89bd. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/USJZA2484303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89d8b6122d0a64cdbc25bc1aebed552ff6e99e2c0f661bc56ae5db4cf1f45e85. 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/USJZA2484304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9314429681e6e65b6e081871d6d4d267a4e8d1f53a121f8b4c37f8dccc1646d7. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/USJZA2484306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee6f93ea9fd0eeb3b509a971844f660b147f0639c0a65e58d7df88b05ba6ebfa. 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/USJZA2484307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7a571cdccbb6590bc87fafe5aefba3663ee7d4cb7150f7e75f4fe82a0a343a5. 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/USJZA2484308.