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 0x61b903c174161594cb76d4a1441f164910b0db51dee527c0b82eea50c2de25fc. Chain 2 (Bitcoin): anchored in block 953827 (2026-06-15T19:59:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d827ec32-6828-4886-8a6f-8f73cf3911d2.json and https://artists.proofprofile.net/proofs/artist/d827ec32-6828-4886-8a6f-8f73cf3911d2.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 0x677993aa233544400c6b3023f63b02f40f40cdd2e09a1e2314c718851f7ae5a3. 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/DEZN82529878.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x723fb91b1adbfa56c1b1b4d760a41676ed454b724fc09c2e80f599a24e60121e. Chain 2 (Bitcoin): anchored in block 958865 (2026-07-20T13:05:33Z), 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/DEZN82529898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a9f7c3b4d4e04206403c200c506948511ccf9c91c933622e42b9379375b7e65. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/DEZN82529826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07dcc2af95fc4f979570b90d202c48f76ce30a6d023ac53c5b148dff85eaa4f5. 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/DEZN82529908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffde531b511ee514a4c2294a01694923ebaf3b52a3a5e27cda19108d3a9116c8. 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/DEZN82529893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf82953dad7d7c5ebd33feff735eb76e0da0d146b05e3cc8d83c7deefb64adaf4. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/DEZN82529938.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82be9b87a32196b1eb1389fb71c027a9e7f0a66e652a67c3d441f7278c1f69e4. 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/DEZN82529794.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b2c187b1523be3ff85e8700fb47345e27e29595cc3a2003bda2df241ec7b66c. 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/DEZN82529793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32b4d0f03753719a16ccfb751850505f91a86c905ee5222fd47e1c669c366e32. Chain 2 (Bitcoin): anchored in block 958476 (2026-07-18T01:26:56Z), 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/DEZN82529777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57230177d282cf2d8e423191bbe87395ac80d75af7a6b2a04eddaeccb0210b90. 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/DEZN82529842.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x724ca3b6068a7b0511ef37f4e9135ca64cfe01e0ea33630585ecb6407fb69efd. 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/DEZN82530006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf527d756bd451de69ea86aae2e1ecb0fd44a61fc2c96831a48f2323ee02decdf. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/DEZN82529837.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3645adf977acf0f8db8cf03bfcbebd56e0450bbfdc88ef98703c8f1b593883ee. 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/DEZN82529902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdefb15518d84ef2a3fcba0a11df10b446c7bf76e741e119300b7839f998d257d. 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/DEZN82529803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe88a07d83b5131af6eeb7f11d7a057a854714100acb40026fbd80f2efe9884d7. 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/DEZN82529882.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa577d79eefe59ec811374a349633ab2b1d38821397368048abc681eb39ab2eba. 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/DEZN82529965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x826091ea139e8bf30705e3401937984f0ab049741f9c1474c485da9309652e7f. 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/DEZN82529815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71301d02990fe63abae518f637746cc87eb42adadb35adda1cbaa31958c1ef6e. 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/DEZN82529904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f0cfbbc06876ac23cadfe52a6330ce1caed41caae5e2b7b22624d0a7f629eb1. 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/DEZN82530008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29ecd626dac3c303f94759cbff75a8c7ae620f451beef8fde34cdcf09fc8150c. 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/DEZN82529871.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecbd3f81a2232c827c1f2c8d00cf30235334d940aae00ccb5140a7684852e15a. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T15:07:00Z), 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/DEZN82529845.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bee76e28bd4ef2a599c9692ee5d35ae693d9493c290e005c1c455eae6ce107d. 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/DEZN82529997.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e71cc65203d4017beab3fa324b459437afeaa9f1946a82a244e305d989915aa. 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/DEZN82529922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe6e9c72743849474a54c1a6eaed9b06aaa1bb37540a38e4c6474c5cc9a19bfe. 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/DEZN82529989.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb102077498f6a76e3a4f9d4e6b5358dc1c602803a9ef0a064e01c5e8658202b2. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/DEZN82529910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7f3aafa3906dd2ecc625491c5cea14822dea8ae4184c4ff86998583f4d4afe1. Chain 2 (Bitcoin): anchored in block 958819 (2026-07-20T06:54:01Z), 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/DEZN82529807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22178a035b34765710cfd94f866918e01c1c8a2943794d28e645c83b43830d99. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/DEZN82529818.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2c50373e320db7f5c4090cc2524e00955400746363695fa5d41ef845096433f. Chain 2 (Bitcoin): anchored in block 958392 (2026-07-17T09:46:31Z), 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/DEZN82530007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7fa230a02f69154f39537675e93d606aadf1956b9d22fbb0816172fa15a88c4. 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/DEZN82529943.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2e3059647dcdc265129f15608b93d8d89bdedef1b08bb760fa684547d170ceb. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/DEZN82529787.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17a98d8ee6128ff0d2217950386344a2589bdbcf397294ddee96da936b2151f2. 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/DEZN82530005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa14e892fddc6e48fb120a2405781985e7d30676660859df6afe6c79261c63ff5. 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/DEZN82529830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd00312127230db4ae03a651fd98f0500d95103af54acbf2b01a6ecc120e50cbf. 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/DEZN82529928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb51c57b0e3c44876ecfe3e88f73d1f90530807d450f79f3573e047f871a41e0. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/DEZN82529945.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd020ff3ac5cfa3464549327c3eb099a7258262bb4fc7906a15f61e09ac8598e8. 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/DEZN82529812.