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 0x2be713144f0e37905e51fe7202411a6f91a8102fc44808d92d6c273eb076890f. 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/58d57e80-8a2a-48aa-b631-30f6875eeb9a.json and https://artists.proofprofile.net/proofs/artist/58d57e80-8a2a-48aa-b631-30f6875eeb9a.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 0x70fbf4523c51b17df4ccb617c63ed2408ebddb870124c087edda7fae35cbb147. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/TCJPS2206388.
キャンディロックサチュレイション！
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x512bc3af36648c89755e5336e2b4082c4556eda71d29b10f0e20dd760d03953c. 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/TCJPT2213619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59ea5e4dff6c95a54f05039a6418777bb8650555210bb5d39bb6fe215c1ac8dc. Chain 2 (Bitcoin): anchored in block 958864 (2026-07-20T10:24:04Z), 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/TCJPT2213623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe38525cdff953f5f4bf18cd84ee5b743c9cdc71169788de77b1bc19b43682344. 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/TCJPT2213628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22a05a73ee51cf4cd3f391e25a5e8602593fb5658262911abd1367fed7e917b5. Chain 2 (Bitcoin): anchored in block 958432 (2026-07-17T15:43:17Z), 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/TCJPU2343824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x274580011d055d9690da83a7f7b91d8ae362cd6577299d5f79e2c7da06b96b65. 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/TCJPU2366118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63c7aca7737be06013527b9c48867abf766edb59a96b2e9f2cee5906ee348408. 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/TCJPU2375366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3c1c0db12640e315582f15e04e5f6c1e21400fc2ac09134aba20677b3bc94e9. 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/TCJPU2385654.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacaffe525b3970b81859f46e79d5271df566556e83726f6a1964720a9ac56cfd. 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/TCJPX2356037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf34a25fa343fa24051e071aa5d0d2faf2950438faecde94c560d359e41d3b7fe. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T08:04:16Z), 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/TCJPX2358416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9da2f656bdac174ece2c77ec83487e5723ffe15e8f6c0ca20333f6c898feb6fc. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T03:09:44Z), 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/TCJPY2300085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x030c732b1bab73136f1907de32cf32e00a40df12862f892ee89768be34029ead. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:18:55Z), 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/TCJPY2307685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x280f9ecbb312130c6fc9f5bb04572ccf5e5ffd4c04d0f5e86149bb1039f11575. 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/TCJPY2307887.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a5f36cbfbb1363aa21f149a478d78f965c156105d0c4c2f24d3fd531e435502. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:12:00Z), 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/TCJPY2307992.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3dc1227bc3aa4c397d0ed4629c483fee85b0698b41a097f7d4cdcad71e87fc5. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/TCJPZ2436549.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x767da04fb7b43146253e918f2783d137cd135d59bc262fc576b42390219df437. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T23:49:13Z), 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/TCJPC2414635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1efa375d0b06d9ea5afa94ffa1ad4acf5b0e4f3588c7cfef66eca6ff0f1e27fe. 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/TCJPC2487022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad78524f7a49f46f687620879c555416be7e47f8d8e800eed7ebc56379dbb7eb. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T10:43:22Z), 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/TCJPD2416143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x345006101dced66cacd064d4d88ff6ccf9ed9fa1694ba1863c7f9b3812302420. 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/TCJPE2551110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23fa780a6973f515a32e2bd23aef6c5df9db3d75371a85c35023f93266d049aa. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T08:19:47Z), 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/TCJPH2548215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb471dc53005f250ddf6ee62b09628a161f248ffa13c09c04dff3b97899f4aaec. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/TCJPH2548392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b70a3d259ce948323c227ccc9d0f428b96b5af87d4cd9da6c7172fbc1c000ef. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T02:12:32Z), 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/TCJPH2548602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e6248d931e18fec0143993993a278462d5ebe083efa6ddb46530f63591d64ab. 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/TCJPH2548640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ada7f04afa3ae7f4177506857c4e70f9dd8829e506d70ab1b955d291cb2150b. 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/TCJPH2548649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76695063fa87f42a6baae2f60c6f0fd892f50c1692ac286984fc4ce114b70962. 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/TCJPH2551722.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x887910136965d3670034608b489a970e3c511f141dfdcf348ac39eef00270293. 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/TCJPI2555888.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf804ac4a38bd907065f0257ad6e4629557bf820fb797ef0179cca0da1fa0bac0. 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/TCJPI2564098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d93582e8a8ac607e0ea2d973e0f26d6ad4bb18252e5a0ad06c7770dccbba63a. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/TCJPI2564197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8037f22619b00348db9702b6fb0b5ae06a2a5d19e5ec6b7c357092c19ba1113. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/TCJPI2564896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac2d76db0d870a9ea96dd278ac7cf1db4f0ee6e6a60bc3d26bfbb02d26f5a77a. 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/TCJPI2564902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2a1f73e7419abb19df49d31201362dc44506f0a11a97750f11a0ba734e67265. 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/TCJPI2565079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe763b2e34baa5cc104047c71dff361f57cecd931086dd5d7ace306ca8ae32147. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/TCJPI2565169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x626d8019fb8d8e10e7b702ba6048d9bb8a39fb5fb508205de692e7fb0e2b011d. 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/TCJPI2565330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x028bc14a6ac10e3ed49e8189277775412aa7f371027d7ac659a2d9606d2478b4. 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/TCJPI2566569.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3685d96ac34d90820ee100d71cdfca80a7bfc29ea5ff620b35d6810db8adaf1. 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/TCJPI2566585.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cae72af639f3963d5c5177e399bf42f0c60f0db51a971f3853014b358c83d19. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/QT66K2544091.