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 0xcf4889de4799d77ec5ebf6cd1d25c357e0d2e0316e7de87e652840b1dc53223e. 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/de6507b3-cc13-4317-8c6a-bab6cd559be6.json and https://artists.proofprofile.net/proofs/artist/de6507b3-cc13-4317-8c6a-bab6cd559be6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
How Great Is Your Love (How High And How Wide)
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 0x3ec07c3da69c4fc59b9ea29eb1da98194573c0c5d10f8d806b3aedbcc6ac57f7. Chain 2 (Bitcoin): anchored in block 959065 (2026-07-22T00:42:53Z), 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/US25L0800494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dd2d06bc229f04ded0f23e83b053f81f4e8e7d3898d64cc4d131cdda8ed6150. 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/US25L0800495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc3ba2a4f34ef5e32846af4dc469b873c31b43a173f4a8d7ef26a44ce4a5f0e0. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T06:12:52Z), 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/US25L0800496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd213ea72f13125d694a30bb7230a246283db98436e80f5e38fbda018f00a3bd3. 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/US25L0800497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4089c0e7a56dde8a814eac150a2520145aa7eeb229fc55599a49c461a2a65ee2. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/US25L0800499.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x141f65688238f903d92ca159b82a161bd23a62cc768dfd0a68db1d31624e5b84. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T19:50:54Z), 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/US25L0800502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedfef1b69bf00bfb24baea5c5bf938ff760ad20110cb4e8d978a24da62196b0a. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T08:04:06Z), 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/US25L0800505.
How Great Is Your Love (How High And How Wide) - Reprise
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87ef8d267650ce2ce6f0042488b7a753a298502303507de31e0ac87d0481b611. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/US25L0800506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedfef1b69bf00bfb24baea5c5bf938ff760ad20110cb4e8d978a24da62196b0a. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T10:19:52Z), 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/US25L0800505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe65097be79ae756f4d1a4f282a6a7ee5272da450bc6dd25cb05aba86b0c5a701. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/US25L1800464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dce69a97bd35aedbc309126a1e2d4b38dfb4b175cf2b258bc192c48e818032e. 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/US25L1800466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9240d6b5e8bf663c030bd5c0133ff726ac11699b63be0cabd07fa25906a1fea7. 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/US25L1800467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecffca671793b8b43eb27cf742e42e440d755e114a2aa26ce22897ccfe3b4efb. 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/US25L1800468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca8e80954122fb844e3bc502a6d90e4b7b50a6d498249ec97ba769e10ae714f8. 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/US25L1800469.
Christ the Sure and Steady Anchor - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfedb75dda5b7b9973c87eb10e1d05cb2a51369061c826fd1f164a7d5ae9b1372. 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/US25L1800470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d818d849bd8ac3d6dfdace1ff357ca5c7c96b32df1090b171ac5c1b3f227361. 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/US25L1800471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32853d950920421e6f587af0b2352a0605445bb33835f338432b24aef743c8f7. 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/US25L1800472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d605a4c36492991d8428d934f82d0fc584e9dee82a64fe7330ab1d774a448a7. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/US25L1800473.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2f7505afa9ae20ac27f3971567ba86158a3048153d8b8553b9706a0d0776417. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/US25L1800474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2c54c20d83f9810499447e4f2d86eff9c04c162bda3eac59f815aa9f2cb3e84. 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/US25L1800475.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad63230c545a8b8dea9ccc2cffa8cac6f87498ff6b5bbfc338bf8f4cf564e1c8. 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/US25L1800476.
Afflicted Saint, to Christ Draw Near - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93cfef774632d5924f10ff4b8fe79207c7f0db3707518e831cca9bfc00e3815f. 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/US25L1800477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae06b037fe5cacb832f49b0a828abebd0e13d69d651fc00176a3c6cf2c09e0fb. 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/US25L1800478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe56d6307b6b2ed67b1f84d114c88172f11c875c8db659c642c696d0d1668a78c. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/US25L1633102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaa3d933b45136e7c3b288499c746cefff467c2df844c2839ae427ff2b6225c7. 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/US25L1633103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f43e70c7ad24bdc43e5cfc64e84bb0569d5b6420a07ce6d0e7075e78434d8cf. 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/US25L1633104.