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 0x09c4293e27040887f2f741d1eeaf8b1dacb5ecef36e1e41c001f914ff3e17a2d. 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/480f06b7-9363-45f8-b1ad-bc5a094c5120.json and https://artists.proofprofile.net/proofs/artist/480f06b7-9363-45f8-b1ad-bc5a094c5120.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 0x60712fdc4727169f9d0d4826d7e3d536695dc9c24c5c0f852a934272124ed79b. 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/TCAFJ2171771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1037d83393d5365022d2a1fb18d5e0e0a03fc0dd30174204070b44612913af1e. Chain 2 (Bitcoin): anchored in block 958523 (2026-07-18T08:54:12Z), 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/TCAFU2194741.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ffc0e36a1dcc782e3cdeaf90e95b358e8ac8f1c7c32fa52156b84711b35a978. 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/TCAFW2128982.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdb17f5c1a61c455ef49ce3d57ab0e05690f9ad8c17bfda000a4a4bc29494f45. 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/TCAFZ2245281.
Roze Don - Bang! (Official Audio) Prod. By (Aalvero)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf55aa44ddcf2f5566554cabf39c650eacd3664c32ed41fb7014810a0843fd18d. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/GBARL2201007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x578d173e3d211ca689d9eb3e64b3dd5bad84d82d1b134f8370eb333a146007ec. 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/GBARL2201558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7712da6f17b5782a482e47bbcf2f47885d799130ec76e4e67ee653ccc919d8e0. 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/QZW9N2206166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x735e87cb84dd81abdc33535f7987ba51e912a2756e7640a10aee75464d57d8da. 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/QZPYN2360614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e7861414a90e853eca3da189f22b047c9558a01266649111842a810f6b08c91. 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/QZGLM2396818.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x347c1bd7c192cfd367b8719a17bfcf3b1f6550890e7dcf56b6e0e8c902c836d4. Chain 2 (Bitcoin): anchored in block 959034 (2026-07-21T16:34:25Z), 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/TCAGZ2398444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37b6774e977dd1f90bef7cd04ecd8ca5edda5503477436c2a9eb357343f893e0. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T21:05:52Z), 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/QZPYN2368754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf42c6097e7bf16486a4d3c9fdcf4e3b7b1a7aab0d33feff07e101f4478adc6d6. Chain 2 (Bitcoin): anchored in block 957772 (2026-07-12T23:31:17Z), 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/QZPYN2368753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb136ed91db4d953aaed8749d6fa3adc445fd9c352732596a26006f2d9766bcaa. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T00:01:46Z), 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/QMBZ92308711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ccc674ecd54b1d7f345ca10ad79df12ddc42b07a2f5d9842f59a861fc63bd6d. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZNJX2320848.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3286553677eddb99ea79a8d959df90a4563289635a9d5d58fd21df32e381417. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T21:09:36Z), 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/QZTPX2307982.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4863729d0f1f4e9ca072bd787e381233e1e2fa569daccadec4f7839e677dac06. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/QZTVM2355998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cfb1ea5fa98aca786e37667ee95cbdebf56eeb3363e869de9a12b2fafed10f2. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/QZPYN2382715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe30c7929c4a025aee403a158c85f6fe939382f0b147c2616e40d0b91c2c6594c. 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/QZPYN2381939.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4501268f16dbe5b060cd23836f91a78d5874c0f81830e5d2ce56e1f9657b8504. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/QZW9M2326527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x438bf818abc91352f6c5ef000a51612dfe06113309db0e0c4454fe6b37787d3d. 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/QZPYN2461888.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc77befc4f65fbe1bff0ff06063277508b2f314e45270cde990d0384d56417b1. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T12:03:04Z), 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/QZPYN2463452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e238b2bad47049495a7ee433f8a93b1a95e2739e5da81d5016d91b38bc6be32. 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/QZPYN2463453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6064f493e06c4379766282b13fbeae5f5cce7d52a80e80148eba0db9886b7d1. 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/QZPYN2468271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ed65c3428b8e71807f80c01da99dbc2976abe9d2d1be2670086afe00ce8137c. 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/QZPYN2468272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa846ac31fcfc01ace8ea5d154e0a21e90003810a1cfa11dc55a1fe986d880814. 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/QZPYN2468270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ed65c3428b8e71807f80c01da99dbc2976abe9d2d1be2670086afe00ce8137c. 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/QZPYN2468272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x183b1cb155087468a8fa5141768d2917132f6388cacba526522ead0025313e38. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZPYN2469654.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54ff062f3758678127d4bc0b3ea094a8110c1c239367e7a18e49aa227800a2cd. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/TCAIL2401081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e264389e1f651b6523da017d231c95927f85aefba0d14e710bb682f9d508796. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/QZNJY2481957.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa507550b520c10d04fff8fba0cc0e4cc89d578c70e02ac50a3ca2233594305a8. 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/QZWFE2499368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d45014d488c5f1d39ffa8b4b4d75e353ed3108a12d182e049e1790b54bf4f09. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/QZGLM2507494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52faa5b50bde4288d822e4488f40e5f4d53218ed1fd448bc9709f9e41153a80b. 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/QZPYN2563182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8d68f90fb4e856070ea1b2018c03b35a037e3802adffa58f4d5b06651638203. Chain 2 (Bitcoin): anchored in block 958303 (2026-07-16T16:39:24Z), 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/QZNJW2564838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd787a1b87c09fa5118a8156ecfa6cb9be835f215febcce6150782f4710739a6e. Chain 2 (Bitcoin): anchored in block 958111 (2026-07-15T06:58:20Z), 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/QZNJV2549680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x244bf80458d397ce6be9a5b9e25b294e22d600dbf91fea88a53696a2a19ef7dd. 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/QZNJV2549682.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b6403110e65ae496e68cf3ec538b4eaa2cd7b9a6cc60590037635ec94b76e1f. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/TCAJZ2599162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x917acfe08f644c76e1e84b52c00e7775fe97f2eb50fe41b826a7707bbd4287d8. 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/QT65Z2510932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fb0eff828f67c6cf47547789daf5096855fd02b45a10f214f728e67fb09cc69. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/GBRKQ2484117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e264389e1f651b6523da017d231c95927f85aefba0d14e710bb682f9d508796. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/QZNJY2481957.