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 0x5a0150b8615f6ae2d12afa619cd61b49e1b11aec058338b942de3ec76f8df2df. 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/0870b0de-346f-4ddf-b1a7-013af0f43d3b.json and https://artists.proofprofile.net/proofs/artist/0870b0de-346f-4ddf-b1a7-013af0f43d3b.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 0xbcc81c25e991c3489750a959a5284ef335a9153abce85b51512cc4a0778618b2. 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/GX8KD2292640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57e882e6bb849a789e1594244d4ba9b78e9fa8b2d16bf8a19129356f8a0cba9d. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:53:30Z), 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/GX4R52334669.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3862aa46cb90748b4464d4e501ed45922fb8cfb48102fd74d51db181a052d44f. Chain 2 (Bitcoin): anchored in block 958697 (2026-07-19T07:58:24Z), 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/GX8LD2426930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4d057a23aaef68356adea7f8c3e2577c82a8fa3f2639a21aeb5827db215a8e7. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T01:34:03Z), 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/GX8KD2589714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5271e6a70eb7873ee2df06630808e7093f9ffe23347deb67bab68bbed2ff9ab9. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/GX5MY2476081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85a0f6cb03808dcf6ef656d2e7c5218129133dc079079543f8fd41bd682e61fd. Chain 2 (Bitcoin): anchored in block 958703 (2026-07-19T08:36:12Z), 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/GXBDS2485052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf88d0e8eb709118bb8489059ff9e69cebc1ea3632ef837d5c4653cde5e5df677. Chain 2 (Bitcoin): anchored in block 957680 (2026-07-12T09:07:22Z), 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/GX5MY2472547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2b42deaa323c10329c4abbd7c2f6baabbd3829877c3b8b3a03b42123493d664. Chain 2 (Bitcoin): anchored in block 958756 (2026-07-19T18:58:37Z), 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/GX5MY2434171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66100dae5c4a7c863b3c9c3e8f77c87b9c7c20e6cc19dfe2fea31b1846eb9280. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:42:03Z), 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/GXBDS2418205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa22fcd49f1561efc9c3d578ec88fbe24c2cd91d9fd36f22eb0437f31bfd62b6. 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/GXBDS2467513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad7bd7058899c643d965e5319bca0b81a548d2a8d3cfae44e384ee8d0768b2ab. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/GX5MY2435530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1eb61b6d17be9105987c2cd0c960389be49bdaedae1a7671f4cfe58ee8cd92a. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T21:24:47Z), 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/GXBDS2453279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f856e85f8e95c928b48012aee8424704f3c837fa224ef86ac9af0d23650cea0. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T21:32:31Z), 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/GXBDS2456952.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4ae14767ed21b1c525f86226aa8993e41bc141c94f560041ddb28e25f33ddb0. Chain 2 (Bitcoin): anchored in block 958251 (2026-07-16T06:29:25Z), 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/GXBDS2406398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x903d2eb694269bb2298c27a9f9b3906691f3fda69929e54f31a575ebcfc25bed. 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/GXBDS2477552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bf29957cf4692d694041d53c3d2232f97ad6fbe12a257c03c28a7b67d4c39a0. Chain 2 (Bitcoin): anchored in block 958251 (2026-07-16T06:29:25Z), 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/GXBDS2430135.
Waving Flag (World Cup 2010 Anthem) - Celebration Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc2e96a0a20b50f5e23a31ec64c462c331b877b0b9667c8c6ee016683ba904f2. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T16:26:26Z), 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/GX89G2593125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9de885f4d4bd332dc0271b3fa5638feefe014aa4c1566e4c1e8652ec6abc2f16. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:35:34Z), 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/GX5MY2499023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe01edab3cd1e9ab0a04624d2111d1f0477971139ac90606b5e720841903c52d5. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:43:22Z), 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/GX5MY2477294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6651d753f6f990e2876aca286ae00de4e78b86278c2d6f8cf49183991fe665a7. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/GX89G2556152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62292528c46b019b9d067233b4cd4b5789ba0c57183ecf2452e99b91cc7a04ae. 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/GX89G2543865.