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 0xf6078b02cb5e8b2b80afb8fbd8a1c8f51d7e589abd43f1c08c475a2e75eeadbd. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a6dc2255-81e1-4d2d-9afc-1702e1694078.json and https://artists.proofprofile.net/proofs/artist/a6dc2255-81e1-4d2d-9afc-1702e1694078.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 0x23ad71dd8c03d2601fe52d1a7b5793771fbbf1484cd60f8786c9b7f716a7cbec. 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/AUDMA1500008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d0919d31cd7f6347162693ef1181aa7079a5d1ca31714f1aca7acf2c4b9381e. 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/AUDMA1200008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc67ab9df7660527ceb1a8464a320ed960df163da077715604e03ef977c076b93. 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/AUDMA1500013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x929a66d2ff2563f994cb297578b91f098fa1378c847ab6109dc4dfed69a7878c. 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/CA0L51200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x453641deadaa0c39de448599f2cf897cac93fa066061d1802424bc633566f2fc. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:30:52Z), 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/CAN111900007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9eaa83cb5fa21ee2563181f9f68753bd5f29f30c730cb7325d15952de6d9fc0. 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/CAN111900129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb925716d0f63d2c69b1a648a144381d7c1ba2fe0bcdbdbbd11cbdf793e300c9. 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/CAN112000165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6911213ace63b4b1a1799c6cf03c565a89757e8432b091e0a2950cdc7d9081d8. 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/CAN111900289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57e04117e8f880ce9f1774102ae37adac4b1d5f568d622350a46dfca42d01555. 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/CAN112000018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea2b8e95b2c74d0ff06868972b2067e3371f8f4413309896443d05340df11292. Chain 2 (Bitcoin): anchored in block 958907 (2026-07-20T18:37:03Z), 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/CAN112000020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f397a7facbcdb410b926e9208627f258fbe8cdcfcd38b0f6a32a63f44ed5394. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T15:47:57Z), 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/CAN112000405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabfaa715615788c7d9433523107ecd1dd07f53e84c5d91bfac80b0c0ee9dc488. Chain 2 (Bitcoin): anchored in block 958384 (2026-07-17T08:27:02Z), 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/CAN112100113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1099b7035428dd55fc1ffca753afa103efad4adee0d8fb546ee9984b673b8e2. 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/CAN112100828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd17b3dae2c1690ea60f87f4c211c24f081ca29e2e32daf63754bbc6210f02920. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/CAN112200121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e31942b20c524c3c350142ff8b273e08a16547dc5130ec4d5ebd944cfe310c4. 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/CAN112200120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x394de909203f7026f0c58df4a0a5afc8a5cd2c7885c21a2ce7f213122ec9a31b. 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/CAN112200122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5776cf6010ffff824c107a5af4a70d2de42fd0b630aed13ac8b9b001d555bde8. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/CAN112300364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5776cf6010ffff824c107a5af4a70d2de42fd0b630aed13ac8b9b001d555bde8. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T14:59:58Z), 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/CAN112300364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dbdce5b237ac4a2bac74998bffb439e32edb62c26f45c5bac8cc7f23be8fd08. Chain 2 (Bitcoin): anchored in block 958111 (2026-07-15T06:58:20Z), 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/CAN112300648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26039a8d56df63519e1ff67fde5ee560f7c93b9d1c957d59b93fd26eb3e8b36b. 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/CAN112300796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa88787e2a2f34b7dbe428dc4d0a326ba6b3f52bb5ca5dc3b3aff544ba92dcabf. 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/CAN112300797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dbdce5b237ac4a2bac74998bffb439e32edb62c26f45c5bac8cc7f23be8fd08. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T14:37:50Z), 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/CAN112300648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa88787e2a2f34b7dbe428dc4d0a326ba6b3f52bb5ca5dc3b3aff544ba92dcabf. 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/CAN112300797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24d8820bacfbab1082630d5d53a68d0b070f119dcb23ef26831a2c5f6add01a7. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/CAN112400203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24d8820bacfbab1082630d5d53a68d0b070f119dcb23ef26831a2c5f6add01a7. Chain 2 (Bitcoin): anchored in block 957546 (2026-07-11T09:35:53Z), 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/CAN112400203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x182ccfb24ef99c959554b65dd39038419f2088ca620bdd416245de519a759726. 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/CAN112400088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72bef872769533490ebe1f1a28bf2335c7b89af89bc8365a3a6ebdacb6f4f5d5. 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/CAN112402033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dbdce5b237ac4a2bac74998bffb439e32edb62c26f45c5bac8cc7f23be8fd08. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/CAN112300648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x709db3cc4610516307a0f355703375156c4db4a36e544cb1b23e61fb6e793494. 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/CAN111800261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85bfcb6739b170d7b1d43e4d3c389924e253f818528c9f37aebf71f9970e09cd. 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/CAN112000714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0a3108b6613825812cea0b77390305d55da05da962eee47e1b67c93b31280a7. 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/CAN112401022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72bef872769533490ebe1f1a28bf2335c7b89af89bc8365a3a6ebdacb6f4f5d5. 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/CAN112402033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6c930c38f34d759decca3aa57ae8b1396b1f67515f9a4c9c1546d253b08dae6. 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/CAN112400586.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b16da542b8cf0650fef823d30c8353a72ee0ea3d1d59e693924b1e20ac72eff. 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/CAN112200119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x422af4ccceccd10158dcefd8e4d1a8eaf623128ce4853b0b48ea2b49cf1aca59. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T08:53:19Z), 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/AUBEC1706588.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fbda834686d0de5d0ee2ec013d6f9ec9c8eaa57bcd92f9f61cd4311f9202034. Chain 2 (Bitcoin): anchored in block 958889 (2026-07-20T16:04:53Z), 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/AUDMA1200010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6c930c38f34d759decca3aa57ae8b1396b1f67515f9a4c9c1546d253b08dae6. Chain 2 (Bitcoin): anchored in block 956748 (2026-07-05T05:55:59Z), 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/CAN112400586.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a2a48ccce4c38a28e1cc49264b28e6bc9afaaf4c9a71f3d1e4d4c10b1c52ad8. Chain 2 (Bitcoin): anchored in block 958798 (2026-07-20T02:17:31Z), 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/CAN112401465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a20f97202fa79ce2d6ecf727afe10fff8872ce132d0cec5aa991ba2230c559b. Chain 2 (Bitcoin): anchored in block 957546 (2026-07-11T09:35:53Z), 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/CAN112402216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54f965073db53f4fb17976064339c3395229b915e2db46733f73c8e9577e1ad4. 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/CAN112301928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a20f97202fa79ce2d6ecf727afe10fff8872ce132d0cec5aa991ba2230c559b. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:27:36Z), 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/CAN112402216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x465430260e862ad2629e412b6f9535f4ecb4b477844b58d18dc38a112704eb82. 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/CAN112500580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a20f97202fa79ce2d6ecf727afe10fff8872ce132d0cec5aa991ba2230c559b. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T04:29:18Z), 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/CAN112402216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x465430260e862ad2629e412b6f9535f4ecb4b477844b58d18dc38a112704eb82. 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/CAN112500580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x954a2facf4203f1887296cf08a18edcc32ef994276ddf16f2c96ea61c405307a. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T22:26:59Z), 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/CAN112500771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x709db3cc4610516307a0f355703375156c4db4a36e544cb1b23e61fb6e793494. 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/CAN111800261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf496c5432fc2aeb2d6c52da26fbd1dd2a79bdd60ed9023918b744617bb0bf9f. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/CAN112500605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ca26ea141f1d03c18e76d4dc4b57fa5951c5df9bdd8bb75434c8ffe6a752f5d. 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/AUCJI2300368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc862e116376bc0f1099dc2cecc50557641bbaf6799dd2d10903970561599d37. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/QZTVM2129316.
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b1c1f281d62f56d1306b5916c4aeeb579a955e57e9bb1b4b94a1f5b072b8a11. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/QZTVM2129326.