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 0x5de1ad926a303275f40fb1ad83234ba0ede3d2f90dac7977c2dae143ed0ab59b. 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/35748e36-4657-4e17-98fd-def788084be2.json and https://artists.proofprofile.net/proofs/artist/35748e36-4657-4e17-98fd-def788084be2.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 0x44f04f887c2606677c5e42e673ec28d47e50d4592b169627ac4b560c324cfb31. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/DEZB52020001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11dd28e8203347e4a977cc00f3029a30ee900bd53aa9c3369b9d079ddceef243. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DEZB52020002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0647d9209009ec9b50a981a2b58357fdcce0fa0ea11de10e6ab63683ac66964. 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/DEZB52020003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x611632bf6f106f97b56f37f8ae7487783a0cca3b128874c9a3fed4e9658fb8e1. 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/DEZB52020004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1ebeda73cc3e485dc2585b09899a56c516f4b54e7b31285c2c0afc45787e9c6. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DEZB52020005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1483ba3c8d029f63ca3b1b988903ff1b8665b4f195942e3ffc468f2dee9bb33. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/DEZB52020101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x298524cdf854d0d69f2a9e63d8750a7184f1448a664cc52716236d37b6839f2f. 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/DEZB52020102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5581f294fbd5992c25b1cc9019044fce88e84980b0aa822ec15083213461598b. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/DEZB52020103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x466154202483a03aee7c6e53229286de9126954baa99c2f40cc8d537f0415e76. 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/DEZB52020104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe90d88f1e7a27023d86d9495d636ca8b5926fff456f69e4ebf0c985b2dde584. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DEZB52020105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefeed7ffb23e6beee9d590d3f67765c8142c8a64b2b2287a2c7e16d00e109efb. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T10:10:29Z), 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/DEZB52410528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ed4824db90faa419f26d4aa86b999eaf49408cc0c9aca64a4dbee361a5e19fb. 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/DEZB52410529.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14f923a9edb58bc46e56e0a18aad34a6647d57b8c952a892ae3ebf5b618fc964. Chain 2 (Bitcoin): anchored in block 958738 (2026-07-19T16:00:50Z), 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/DEZB52410531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7eb471c754eb69e40c88fc7e83c76374d5e84671e4e46b0195be840b5176a53b. 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/DEZB52410532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbfbc6ed9f91a3d1d2f345fea295c9a8cbf16044983272d6a4f3465207b9b52d. 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/DEZB52410533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x730a0a58972113b5dae8a509b7f0bc7939b20b90097ed594aa4c4a85b342b294. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:32:41Z), 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/DEZB52410534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda87b9a7f22b41e8167ee9c5453163f0456792e45adaab3dc15c6fe1d802ddb0. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DEZB52020260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca12b5ea53f56aec793e810c9ccc32f743ed07fc136d1e7cd4a011451cc8b1bf. 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/DEZB52020261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4fa2dced147f5cac0ce76f1be5742cdc3c74935e381f7bdfc8ac53c38fd65b4. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DEZB52020262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29a5e2aa87b8f02e1435613d534eeb30a0b706c61e7a31cbbbd3e0d9d81226b5. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DEZB52020263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x835d92a2a167257136a41a0066c23e180b21a635133272408243692332f88b43. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DEZB52020264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69064cd4be613ff7bcbb6289cbf62d34ccbd3dfdbfd5d3ba6cb6511f8c5f498b. 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/DEZB52020265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe9403831e43931a1d0e02a7ceb77c71d147c1d834a0f211a459a9fe98dc2bd6. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/DEZB52020266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x790c23ecca607654deda54c347eac666e0aa0713bd3dd65d573b047c850012b1. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DEZB52020267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a1f6c9be899ac64eaae9496a9aa179f86074561ae8ceb2f0a2ca96842632211. 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/DEZB52020268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x288e04fdcd878c4afcae52d82e0ef197ed95e14ab4d4c9ef98302a9d85b54704. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DEZB52020269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7501ecfe0ddd48a9e5760e27b381fa3a0a6a8bbeb47b2bec3a77cc8d25aeafdc. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DEZB52020270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf46905ce11810d1e905ddf481042f1b8805ba48b9e0c54e100fa9b5be3dc46ab. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DEZB52020271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1547dd08b9d412b90431668a0ebb93fc421858377686c29aa699b5026171e02. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DEZB52020272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8db2f4dd6eb7b5f1dc118731404d3ec76cab51c8f33fa89f39df4fb233bd672d. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/DEZB52020273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb8640abd980feff102788f0ca2012f34cc764b8965baec973b09450337f275e. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DEZB52020190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf23ce22fbc6711c4e5b4295597d846aac966c55835805730ac7ed265fa32de1f. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/DEZB52020191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74abee82198d1e507e6fa59d71fd0453dd0db63d651d63f5b6a3d8d2e46aa575. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/DEZB52020192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd572e35155888bc05188e1d5bf46d5480467d9508a8037f217db7097e229afeb. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/DEZB52020193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd80e38bf3ada5a40478acda5de9cf85f5038623011391dab73fa7d03a000413f. 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/DEZB52020194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56e9a93332d19e6f2e6d2e76bce5ed284f261a2c9921053c824450653d868866. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DEZB52020195.