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 0x8f02bd8c0171c49dd9c000f315be82269bce34baac5f590a87f2aaa54019d950. 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/e37b507f-dcec-4ac4-bfd1-03062083e393.json and https://artists.proofprofile.net/proofs/artist/e37b507f-dcec-4ac4-bfd1-03062083e393.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 0x3b156d0e8b0efdb23a2ca5914e45ad9cce2532f6a4f3c1574ac8005df517f77d. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/SE3T61703208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ed18e730e604ddbbffc23cc92f88c11a5858905fd369c7bebb4ba0279d2ed81. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:19:05Z), 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/SE3T61703209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa403685c4517e822d8bec9b08d034cd2e27076fcc04eeb64e109436bb941abe7. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T22:01:23Z), 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/SE3T61703211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a3d431832f2e77365699ee34d0bcded046308aa24de88640698f708aa474ebb. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T23:45:40Z), 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/SE3T61703213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffa274c7589e36bbcbe620e59841c318fbd4b99cce4f064de94d8e6be7b52546. 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/SE3T61703214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbbf54719c820aa2f9a429e126e9288b6e791c3f7a11f6d408efc1234787b44e. 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/SE3T61703215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56e7a064e70c1eed6954c0d5184e2175d727899d7213511a60c8b8d317701034. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/SE3T61703216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31c5972e2f8f1f1f917b433ef56ff0c3ad3ee407b3d8d5988a4cf6b20a520eb7. 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/SE3T61703217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1177a61a864339f0c131da8ff1fe2fab04384c9892016871793f328787dedd8e. Chain 2 (Bitcoin): anchored in block 959073 (2026-07-21T23:25:37Z), 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/SE3T61703219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84ce54c2bb425b26ce6ad66d265febf9f1e76686b2faf77530b1d84e3c6abac7. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-16T01:23:42Z), 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/SE3T62001301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27e1dde52312111b77929a2ba41bf16f64e59913f7b132c4be81dc5a2e2b7f91. 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/SE3T61703202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a48b1cabd9498d8d60576e1aeaf6cb4fe269705676e6086cd396cb8ff236c93. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/SE3T61703204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa738efb8cdd8f3128e0be781dd15a735b01f3a1fdda8b14fa91409b9d6d2e84d. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/SE3T61703201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90c42c469951c37740003840bdac9a4b7354d509aec436cb615353663bcb8c06. 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/SE3T62004008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1527ec0184ad3b8cc9ee4c2b1acc594cc73d51fe2de24fe1bff80aab23833af2. 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/SE3T61903302.
Fågelsång tidig sommarmorgon med vattenspel
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21dc903e9f40dceaef444a61fa9429fde24e8f3d9f7f0f6fd8e5f666112be022. 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/SE3T61903304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe7e45d2b3fc422794da1f82a48861acc3c8db138279c6bfee714cb99ee36fda. 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/SE3T61903301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcef0ded6d91c7351a27703733d66c6c8ac20c5e05e2fdd7aa626057f91455354. 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/SE3T61703205.
Fågelsång utanför fönster sommar lugnande
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6e599d686f6d041b55632333210f99b7d28afc16ca4015853f2ce548d131b32. 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/SE3T62102102.
Avslappnande fågelsång och vattenspel park
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49fff3fa2bb7c04dd2149d47dbd21afb4af5c5ace3872ec88d8ca8af2f0e1e7b. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/SE3T62102103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9acd5bb16f81fe54d8b528b528a719edda6f89387f9d28e31ba1928f7421dc3. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/SE3T62102104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e8a50a2742703db837a2306c282e1c3e38cc15b0a944a2504c486e6c1271cf7. 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/SE3T62102105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x703c6d1e9254c6c5e185b80dbc580287dcbdbff27666ca37b8d9fee8e546856f. 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/SE3T62102106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd018330cd7b71b672b10a2f4bde95616a4118d802b55b1e2683b0e907cf4f789. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-16T01:21:36Z), 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/SE3T62102107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaea1fe1e00482e88542d6320a831168093418a5f5abb2e54e740ba6472a0b668. 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/SE3T62102108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c7f12e8f1b1c5411c75666bd4548c235b698bd4e633ac5c6cd8392823250257. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/SE3T62102109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd17c0754c5e0b428ffdefd904d0bf101cbca72cb12645bc53223cf3a7d007e40. 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/SE3T62102110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9a85ce08aed672f5032c9f341e2ee4e9fe8cbf4544c6032fc0d76cb4f84d91a. Chain 2 (Bitcoin): anchored in block 957671 (2026-07-12T07:35:31Z), 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/SE3T62102111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f046dbc853a494e78e306768dfca4211f2202833238b3128d70e7a822cfa87b. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/SE3T62102112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d713a33c3f1229f5c00cbac0492dbe2b41ddeac8bd02096dfd0eef8fad479e7. Chain 2 (Bitcoin): anchored in block 958696 (2026-07-19T07:45:31Z), 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/SE3T62203202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x193e083bc3b0f3067acd17754d3682fa627731b763d7456cc10a40d46e22eb2c. 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/SE3T62203205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ac6bcbed424d6ffefcf6eb0995c947001c44e7b95e0e949c6639bec080147ab. Chain 2 (Bitcoin): anchored in block 959018 (2026-07-21T16:51:05Z), 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/SE3T62203207.
Avslappnande ljud av Fågelsång tidig morgon
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bed605e118a74862738ed818430e3cec606bdda35ed00222bbc437c0dae2577. 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/SE3T62203210.
Fågelsång Och Fågelkvitter (Långa Versioner)