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 0xea45d9e7b95a7d163c0051af2882228d0935dd2abccd3fb78f7e0318f055fb1c. 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/26ba9b26-426f-42f7-ab6a-1accc8e86687.json and https://artists.proofprofile.net/proofs/artist/26ba9b26-426f-42f7-ab6a-1accc8e86687.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 0x3c35e46543242fce068ff3161ba016f3362b2df32467e6b8f566cbcd90a9ba27. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/AUMEV2335452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd49e9c3b2d723ea9e9a39de0f68a06a0388df712ad47f3e4b096193680ebd1d. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/AUMEV2306134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x611767468c7c84831e18592c93e32d6e5261d7931d9715deb61931bd3cb85805. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QZFZ62184101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde2aeed91b7d89e25e3d88a6e41d4311fc019b674b60decf96ab26a4d8776fe1. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/AUMEV2141094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x354d99fa3207f2b7d6d8bdddf589aed15a287645e717d0d04a703b2f1a007879. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/AUMEV2151246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d86cd0dcaeb938b197be63c45f9ec84df95bb5f16acdc10acf3c3a4b81383ff. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/AUMEV2181143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb1d69552a816cbd07ee8f1bbe0d028a4950fdb8c73112335d78c972d35f4d67. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USL4R2070556.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae0e293e6ff691fa6aa3f723356b3a410df064de864756316dbe5b39fbe24e77. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USL4R2070560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ae75f8ba1ab0d771f7ebc4aa55baf1f829fc415254b4027d6ec16def7fcdd69. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USCGH1733177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6b4274e1687e967e2f84a0f94d373f9ed82bedc248d3a42285bbb1d7c42bb6f. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/AUMEV2508270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37b3b9548df2d0a370f7102fe3446b4884519bce05f0312c80a3c719a4540879. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/AUGBT2488626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba16d1b07827a16324e581d5f26435c1664102cb9349f0c7e131b8e9c28346f9. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/AUGBT2471759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb255f4124c9dbf379d0aa95dc57c99f63755766709586f3262e09a375901211e. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/AUGBT2442811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf88fcda6ceb32fd7e28405dbb43af9a614ace4100a1bc0dc914c1b1de1899f54. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/AUGBT2441180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedc00e50bb6df9b5388370e509a67af799772aec805e9781b426e69643ce8cf3. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/AUGBT2423514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8c5f3c32bbd871c87b69071df917696452eed9ae51107cd56687535bc24f256. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/AUGBT2402334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x758becc8544c9aa1fd0b08ecc5506f00b043bbc43b805bfca40132358c92811c. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/AUMEV2447020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97420d6f800827dd94b2ba76e9a8ea643deaf2b172e3ee42f6dc84fca662f701. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/AUMEV2436873.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dc2370e95d241978b60c0464c074747bac20e35d42f457fbdf51f878d13c1c9. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/AUMEV2424965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd774062e5d17136f80f597177b9bbdd8a0160a4bfa8f8d72969c6f2df11f14ac. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/AUMEV2413888.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e7adb971a1dffb298f414cce538c6b13fa8e6a6d857bc1f0964410bf0f937cc. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/AUGBT2361367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe71eaf606326f9a00b853784c9bd254adbe566a511c9cee7156f0fb785e15874. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/AUGBT2304777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d86f4913e822c7c5b0878ea6f4c053be11bc3c1b2db63f509db5d0802866d22. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/AUMEV2370502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68d3e507e876f9b27e64b347a62b8e4acc48a2591860aa0ba85273249c003c13. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/AUMEV2364863.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1af6387512a09690373e87b1c5046865d5700d6c50c89ba605986e01204fec8b. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/AUMEV2342105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fa70c14b6256e7ba29ef2cdde8a1e0622fe5c1aec4b079c9ea8f8bfc7a4faf9. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/AUMEV2308873.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x767391b037914c7ff3b2e433b21f0726613ff30e4ce0ea8ce29893560c55e4dd. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/AUGBT2215913.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe66c45ebd4d8b3ee8ea8297c9e16b6566ef6bd7952c78e1c1b1b0cf694cb6b72. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/AUGBT2208490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa741de674e7e64bfd8e65fec2502eeb71ed8fc8b92a11fd23248b2cf7162743f. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/AUMEV2260895.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1be2ce295143b9517fcf618224e11cd4cc26df5aacc66a4a21d099eb5e19435. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/AUMEV2215889.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb23075894b88cc82db4cb0ed36f8682e0930f00bdbbce94391ebeba68739b4bc. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/AUMEV2220008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52a9ef32195aa77f89b6919deab990eaf33caace0924b3bd7251e5d11b704b15. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/AUMEV2204963.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3686bd09d1651a124c8d6b3d444d30f4dbc7e46c825072184eeb99a025e85d0. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/AUMEV2565537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x863acc36901467fcec84bb0db71893a51605255f51fee5b523875fa83315a22c. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/AUMEV2546741.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ff794c41325828b139f0e50c4dd20389ec93e0e69cff82e462e81caad67c046. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/AUMEV2532612.