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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02197f58f255d1c3d9548911ca2bf2816049c8f4971a7322af27e62701825acd. 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/7548d021-fb12-41fe-b7f3-fb055e3f1636.json and https://artists.proofprofile.net/proofs/artist/7548d021-fb12-41fe-b7f3-fb055e3f1636.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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x231344c2d31aa4df64c0af74305edd548eb43ac1fc40d2d5ca165d82a97941b8. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/BEC291638082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecfb9e1aa1eae07e959420886f0e1b045c29615c718b87767a554a523ec22f80. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T04:30:31Z), 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/BEC291638084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffc96a6fc58f6509eca63ea52fb6e1feb2ec2aace87e26501e7327b874ad7ae9. 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/BEC291638085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a836ed2c462d7b2bdb573e9b5e06e3380afd9cd12c5380e8fb1bb46be75f19c. 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/BEC291638086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3490a1500c4c602b536b398fa41a96130aa98b5438ccc915384e254124877c9. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/UK6821801371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa50c446f9c069cd53a0269065514ed1b3f14c5cdfb0a5cb6692fbc1cb0bcae22. 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/UKT961900001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43deaddc44cb6339db54190b537e8b48e5e20d07a4a23b9b6b4e9e3b53910904. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T02:46:47Z), 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/UKT961900003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73f66a17544cd53ae75a1677b881b170504e3775186012ecf5f5cb2ae459c785. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/UKT961900004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb04d1a1d9f431feb129a5b13fa0fcf5b4852a57fe516caf4e6a467d3c9adf20e. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/UKT962000007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16d0b6c7599e66fe3077e329cabe677f24d895be1ba6393395e388feb0fb655e. 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/UKT962000010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8f5c251d35bf3b4c5036d69b85abfe6223a324209ca03cd7d46317c27727137. 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/UKT962000011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25bbb19daff3e0f9314c8e1def69c64f2d896758bf5dcf5ccfdc4e31c2ce16a9. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/QM6N22191718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a7994957b513ccef7ee63544f9888abc61f1516810eecfb7741f0152107ee2a. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T07:27:09Z), 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/QMBZ92038063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaacaf5a8a34ddc5100a73ac8227dd723a47e35d07a4242fd443a73090899bc3. 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/UKT962200005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16781c237fec41b73f624d596ff8ba4d332315caf6e909e6971260cb1324ca5e. Chain 2 (Bitcoin): anchored in block 958322 (2026-07-16T20:44:14Z), 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/FR96X2479615.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83ad9e52b42968285da88838c17dd0fffed9def19b99b1e48ee70ce6e06e4093. Chain 2 (Bitcoin): anchored in block 958322 (2026-07-16T20:44:14Z), 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/FR96X2479616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a1bd698764cd67ee7411013fc3e3d48acb11d89ee4ac0d631bb1943af701138. 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/FR96X2479619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe307672c4a37adddf2aa14426c57da093ccbd2041322b081fe87a639ac4ec161. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/DGA082456926.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a1bd698764cd67ee7411013fc3e3d48acb11d89ee4ac0d631bb1943af701138. 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/FR96X2479619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7494c327a5e5845e2df3f33dfbce784ffb22fa17cd53f825a4e881f24fd0099f. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T20:12:32Z), 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/DGA0H2487303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11fb276f9527905e101af75eefb35990938ed4b5ffa24fbe161202bd0ba0bc82. 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/DGA0P2453332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8bbaf7f945957ba2ace0df4f6327f0d2f3f8a358da5695400cb1d0dbe515ae6. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/GBUD71500230.
Airborne Ashes - Eartheater & Aleksandir Remix
Airborne Ashes (Eartheater & Aleksandir Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19432bd33e18a50ff19dc2bce229209b224fc95b2c6be596ff2d735f6770ba63. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USZ4V2300039.
Your Love Is Lifting Me - Aleksandir's Loft Rework
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a98898dbf9c2e8165e55747904514c70dc9b0647fc76d8d94bb843e5f587724. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/FRX202043101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a98898dbf9c2e8165e55747904514c70dc9b0647fc76d8d94bb843e5f587724. Chain 2 (Bitcoin): anchored in block 960314 (2026-07-30T21:00:46Z), 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/FRX202043101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x283f45b916d93747b505f2dfd4f318af0549363f6191069ac7c13599809bb343. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/ES8741903110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x536daff9dd7e3cc8adce7392865d8e005151f8a3a401504396ea7282710ddbbb. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/QM6N21996823.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec5fa77ee29d6ef777b201661c045dd4fd7a76d66b5490e2241354e6371b792f. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/GBEXH2500062.