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 0x296feaa8be0eee523988757c8921a288470a6687103a5a6611ea0d62ac3ca681. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ea4f6982-6875-45b9-80c4-b5329b835083.json and https://artists.proofprofile.net/proofs/artist/ea4f6982-6875-45b9-80c4-b5329b835083.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 0xd39a793c7473e9c432ea9222ff527dd573feca7bb7d92b3551a8e85004b9c15f. 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/JPW562110046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1f95377c15ce0bf862a0c1217df075cade02c5651a7c6590ace7a25dc6abc87. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/JPW562110048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf915bbfe899e884e4a25aa500b77ba281a1b3268a4b1ad907c100395fd450ce0. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/JPR501821421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc1b7916dfc4de8eac47498458559f590b861b68a7c762e39555f1339b57b6b4. 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/JPR501821423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01a524daebd5e8e4b896a9ad8f81fc924a265bdcaceaff896622110673cbef86. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/JPR501821426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8cbfaa0a01f5334ddcc9b173816f8f9c4f731a0458a74b1feef4ef20268b14e. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T23:19:21Z), 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/JPR501821430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fd99e6c24b0565ec0c809641d04a2378e28933b355b4c28e5d047668afa90e3. 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/JPW562110068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cd26b14f1a5c15d3ad8c36f61b544aa12f0b43a11eead65f8c009d3887035f2. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/JPW562110069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe6f1f2724c95acea1a72e67d241491585eb2eb53f85b8e8efd8c891996233a8. Chain 2 (Bitcoin): anchored in block 959011 (2026-07-21T16:10:11Z), 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/JPW562110071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69a57020d771601488643d407a4d8b9f7ccc4295abef0c22b6ba6a8665f7fb52. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/JPR501823820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb873c3adcb8f634c7e64879ecf8ef78dd8ce21b20dd8fb0dc7ff8b5846721fe4. Chain 2 (Bitcoin): anchored in block 958793 (2026-07-20T01:56:04Z), 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/JPW562110082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cf73c0be4e4fea18dd27b0bb3354bc75afb8c6f009597727a74e761449cbe3c. Chain 2 (Bitcoin): anchored in block 959088 (2026-07-22T04:22:20Z), 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/JPW562110089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb03df47a7491910f5b75b5468b0f69e0ec9d040ce462ff0bd5892cab92a9cb65. 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/JPW562110093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b8ceb4b3579dac559c2a000dde49cb2c8590f63c5432ea86a467143e9bc661a. Chain 2 (Bitcoin): anchored in block 958945 (2026-07-21T00:35:28Z), 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/JPW562110096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ff5ac39dbb11b8fcb08017934b8725c8d14ce6d85b9404f2ec7214b18ba2e52. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/TCJPA2473484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b96b063369bc48c3a92f52b161d92f0a2f5ae367bef2b8ab4d81e0db7a60138. 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/TCJPB2424602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x531129b511ff6a0599bd83a39935316db50a39f905c09368764fdbc1a4fcf9cf. Chain 2 (Bitcoin): anchored in block 958734 (2026-07-19T12:54:58Z), 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/TCJPC2483248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04b72a509f4619fc33a610bbefa06ab3abfe41c1443eb274720ac13858f3c6d3. 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/JPW562113166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5be7c01892d048f210cabb954b52b03abed1666aa68e33be8113c4ef3adb21cd. 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/JPW562113167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x767be70128d58dbe00db4e1d1f68859eb9fbd4a8a8b3d5468a277c950f2ca826. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T09:41:22Z), 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/JPW562113168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbd760cb3203182239bc79a6110e28a40d64a86e0bc75085b79718113571b978. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/JPW562113169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b2e3a8ba6560159554adaa5d6224381a3e4af565f686847ac5659d65e99c08a. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/JPW562113170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbd4d0d6987726fa2e93d92f407138d12152792ff5607ec9e75bb4cadba0368b. 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/JPW562113171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21211684f37773af5d18fe12ce725b2d52c36ac26d9fd23a08c338ad423fba93. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/JPW562113172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44c59eba91fb1ea0a14b5f4683b4c0756141fc7df167e1e9e51ed156c6391c8e. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T10:44:44Z), 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/JPW562113173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd87178966114076166f3651fd3e41c3a86127878b0daaebf48b5f86cb9609ce0. 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/JPW562113174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe520cf01497c1cb33d7813910d58bf2a415c7f09dbf552396b231eb550cabfd8. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:09:42Z), 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/JPW562113175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2effed88d1f24a041937aca7807b7c3a838ae374d8e3cff49ad176180f06fc45. 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/JPW562113177.
Imperfect Cherry Blossom - Remastered 2025
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x034b96628880524bb21d1fb888f97a0bdee70465bde5811c1c4e982acfeeb76d. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T07:01:59Z), 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/JPW562113178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x535cceb709dc82aeb49639b654555aeaa42e06e5162272e6ee26570ed65e8ea2. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/JPW562113179.