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 0xa1f82d9115499dd90e0d1bf607aa9817b7e69e6cdc62ada1db4d063ab2c679ff. 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/fde6df55-43c7-4512-b712-095ffb358fc1.json and https://artists.proofprofile.net/proofs/artist/fde6df55-43c7-4512-b712-095ffb358fc1.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 0xcc5bc204b97e0bf7fedd42d94d3a55590c04cf1926c1236906e65635e00035f8. Chain 2 (Bitcoin): anchored in block 958666 (2026-07-19T05:00:30Z), 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/SGW502308638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x590eb7856ec12fb74c65552a2c8e9e0c35c79c9d489a355f1cc568a57856eb78. 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/SGW502308296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2cadba90c8bf98cd741c2498f3405471c6b23dce3afc8bba606af1dfa19b00b. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/SGW502313156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78d41836fdebd6c8fea6a7d8bab539d61d494f5499f5f873135b815bbd7e7bd1. Chain 2 (Bitcoin): anchored in block 957603 (2026-07-11T20:26:17Z), 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/SGW502347220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63da690c39705399af81798681b8240a4253d6ff18356e3916755e454f47e6ba. Chain 2 (Bitcoin): anchored in block 956397 (2026-07-17T02:59:36Z), 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/SGW502353473.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0265371e3ba7598d9e298d298180064f320dcb07e10e7beedbac8dda1e67ae1. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/SGW502357200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51b1e24b6ced8f6409266642a3e96a7e2fa95ad843e8d85f900b6941e0b80ee5. 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/SGW502376310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x370623f9d9b87925b6a751b0fd2ff6218dc71cc8a83113f5b38e3eb35547212b. 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/GXBAV2340359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92d031d19f5eda93099ef18d6580fecb545b7a97b4866c7d075e2276b3fc36d5. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/GXBAV2340356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x830256feef817af4f57bb698cf1d71be967b0843052f573eb464b76b0187dad1. 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/GXBAV2460259.
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39537a1158fe18c3de6a8c99909a265e36e0cf08b70eda64fad891b8c6c1801c. 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/GXBAV2472332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29a7044cea76f5be28883a610be49e4036102f419e4e3817dba6b5e13eec291d. Chain 2 (Bitcoin): anchored in block 957595 (2026-07-11T18:26:17Z), 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/GXD7G2420606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0216cf01500312c5ad2e30d11db4f31df0c5f2fb67be298132d6b15873ad04e9. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/GXD7G2420605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8aef806ddd6a09a8b0e2c5d388211e45c2fb0a68b73860b5cfc9ddf7eeaac8f9. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T16:37:06Z), 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/GXD7G2394207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e5b114f0eca12a22b060d156abdfb6e319bcc5f9ee24afc78f473faa21a77e4. 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/GXBAV2236706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa89bc28a8d77eafccb3954256c5a1273bdb254a1b97c7dcb884b57361334ac91. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/GXBAV2236707.
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfddb33e389debed3fbebbcae010f65c412932e555fc0a1c3c825878af7871da5. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T05:50:22Z), 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/AEA3A2486067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d2ecf7d492715afe11ccbb10857b44c30b6623ec021eca3ba58d548ffa65d1c. Chain 2 (Bitcoin): anchored in block 957776 (2026-07-13T00:05:10Z), 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/NL8RL2522404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08e94256f588bf4248b4e19737c8325cddd5124efd75d00735812853b17df8a3. 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/NL8RL2525184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefe3c53bca6b86f8bf455796c5754af51dda63ac88a84c94e2a7bd96aa2733ff. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T08:01:15Z), 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/NL8RL2525748.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccae3ae0880cec1321c4be94f6add1019b3565f7f9fa6a3f5a9e6d9f5a2a45c5. 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/NL8RL2526732.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a169b7086df7e5dbfc3c38c3660441015fc3d630838b4681eed089cb5b499c9. Chain 2 (Bitcoin): anchored in block 957780 (2026-07-13T00:36:44Z), 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/NL8RL2528816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80e23f56b5460db7a779f7db1a043170a15874e56a8d4457f7a7b266fc4dd352. 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/NL8RL2530922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa021f48c20b8b80950e4c3ce5033c5d1540a5bb5de75883dda79a26a05b00dbe. 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/NL8RL2531987.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf1573dc8bd06ff012d4edc5c3bb1e11f84830eb15028b710694beabec974bc9. 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/NL8RL2535377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbec1d1377691d9c5f94a1c29899fa1af71ec156e8393443dba1a2efe65ba62a1. 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/NL8RL2535627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02aeb80ba878818b3d0f99f22fd4051c4493ee3590778e8ad3f5e758cbc3aae5. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:10:29Z), 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/NL8RL2536427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a011bbc1591e0aaed893d44d7f86d682c79362231b1c33b3f039a05b3ca3f26. 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/NL8RL2537880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99707ad3baf1b0595191dba83824038136bc6afd171d2ed60c6f4efa2740cd64. Chain 2 (Bitcoin): anchored in block 958526 (2026-07-18T09:09:53Z), 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/NL8RL2545716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa873afa05a11a8d242ad5948578e2d90787d602bfee481a3b1947c1f0ee2c67d. 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/ATR981305451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x420807a333b1b507912ca8d4bd420fd03a603131aa319a4675b2687cfa2d56c6. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T21:27:13Z), 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/ATR981315287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x977ce16123e6aa28c70b0916808a0cc2814ecf550d253e8b2751a9ada082e48d. 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/NL8RL2554343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07c2b1cd56ee9400c6d46aa3732e95e3a2b55cd3a26b1d6e07645b45ba656b34. Chain 2 (Bitcoin): anchored in block 958775 (2026-07-19T22:34:46Z), 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/NL8RL2556687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dee59d3832f2023ae7228ccbf01d22db64b4192c634ab07d9137461bf36af6e. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/NL8RL2556742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd0a89b2521ef63ab304fdb8887c8f0da48a29f427484e02cb24274c25297eb0. 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/NL8RL2558408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf915c73f86210c2a49b4087b10ce7caaa8a25a39a184b4aee150852a4a9a55ac. 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/NL8RL2562345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c909b93501a53685cab52adcdccb7e372594145ca3a70d5ddeb51e3fede23b6. 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/NL8RL2562618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e06ff9c71d99682b51dde7ddbd2a4512683e600cbfea7c082785def9114c226. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/NL8RL2563525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bad15fa295e1c05c0c4862c07bd931d59504d7fc01f081bb22374b43d93ffda. 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/DEUD42576052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6ebde8ef07892f19286b93e6b676432d7abc542d4e2c27a72fea404937c5a8e. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/NL8RL2563735.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x126068d91c6eaaef61b151303199e2236512d735425abe4156b3084dc1505402. 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/ATR981287354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4ea57622ebfc5507432760e07afdbf4571d6ff95c350a8d891a35626f04b34f. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/NL8RL2567435.