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 0x40fd42e853ef25f1c3956a8933f0fc386546cc819d5622ce6f9c9ebda9a2b292. 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/7f549ca1-9373-409d-9087-3ddaac865489.json and https://artists.proofprofile.net/proofs/artist/7f549ca1-9373-409d-9087-3ddaac865489.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 0xbffa3f992134edf0fc7c7b7e35d58dc8ce12e84f4760a08aaa3cf2e4937714b9. 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/TCACO1641127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92eba096adea0656ae9090747ac2453b3e04f96b2675a936963bab1b4188cf3d. 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/TCADK1705327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa89133091408146699e2314151bf999489ca60e4234f82b88da8e7badd2a50bc. 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/TCAEE1967697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6733d103295971e7477951b0fe940b734f32e3bea18ee9cc4ada219b42772f42. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/TCAEK1985753.
Virtual Holy Convocation 2020 (Fire & Glory) Preach Edition
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b70974bb6cf5d656d8020b3fde2819845963dc8bb23a15d27c1828bec7f4fb2. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QZHN32048035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaac3bc8df98025d099143280dd2f85fac5f7e633de5ab6622e19bf53da7e5c0. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/QZHN42051004.
Virtual Holy Convocation 2020 Fire & Glory - Praise Edition
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7677c74c5463a736e6488b47d4e9f4de3a6f79d2788e834f872a89a4744fa61e. 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/TCAEY2043933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91bd73cbdabc3dfe6aad3967960a497729724921452396f933914d92ed5a9223. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/TCAFE2029639.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x629e8c761b6aa8ffd5ebac3aa6ff55c879d71df38af81a7fbf93f268624f5d9c. 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/QZNWZ2049408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7891e3c20e4637e0dd967c6a3b6ddd41d319c91ccf586712bec38984d83d309d. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/USDHM2118917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92231be97d55b98a53cfbae8c19ad28319d8e816a18e75aad9e1cdc605b2f30a. Chain 2 (Bitcoin): anchored in block 958798 (2026-07-20T00:05:41Z), 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/USDHM2118918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x014a3ec4fc63a73d2074ef8188e30b02e783308f1cfff216ce535523268332cd. Chain 2 (Bitcoin): anchored in block 956396 (2026-07-02T21:01:51Z), 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/QZFYZ2210928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b8a1663420328cab58d5286af7f2233e19bbc36c00d9bc50dbc6d4393f44913. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T18:54:07Z), 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/USDHM2201410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a97b8d007eaa0ffb08537e5d88b31912ea3c84f53c6db1532c6dbe7cd9f94a6. 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/USDHM2210709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ebe35707f5752ec0abb8327089e61cf27282451835585498f579c0db062ef80. Chain 2 (Bitcoin): anchored in block 958880 (2026-07-20T12:33:53Z), 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/QZTB82281311.
Live at Free and Independent Apostolic Church
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2269b837c8bf69db1175ef3254acfb1b585ad422ae6c322a6ada3d4b657ed3d. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T05:29:55Z), 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/USDHM2306378.
July Praise: Sunday Evening Praise (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d90a5aa9f5c6df639ef37263395d18a793148d6c730d523d8332d76c9495af8. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/USDHM2410361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0434d84b270b1d8dd61785b2756e195d7348e88b45f727c60ecb6955aa4212a3. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/USDHM2500480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ae2dceb3e27fd7734adef0740bf0a92bf2e3201f9b90245413de36f2f19f9b9. 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/QZES82532391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x596e0e0e441de50d8a909c8b035b88436f7c6997c1387403e1517e3a0b6ce137. 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/QZES82532392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fd7dc5470505c8aec3a2a1db99701ab2818df8ebed1e8603aaaf0323663dc3f. 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/QZES82532393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc11b72e95f70cdc8d3539cde20ab67a6b0c2062f86f94f9e1e464bbc5bd7252e. 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/USDHM2503331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10d9372c0793bb1f74ab123c4a827c15349a271e93cd6d8e46021c3c597924d3. 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/QZ2HA1700010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf89c72e6719044272693acdd1bfb710209b1bb75d6c9c374ec4fea3becacf372. Chain 2 (Bitcoin): anchored in block 960379 (2026-07-31T09:25:34Z), 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/QZTB32329369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d6b5ac6d302945b598679a168b6fac9a769c494b438e3ef90e0d2e7fbf40147. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/QZTB32329370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c9dc7725aba865d2f89f24957cc3f5f8a08900393002b87c06a11b72d7b7c2c. Chain 2 (Bitcoin): anchored in block 957043 (2026-07-07T13:52:39Z), 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/QZK6K2081994.