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 0x34c0754fe6d5af6b4f4724d5f643bd71b52d9898f9b9c1e080c6663a46ba01eb. 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/bff76f4f-bb69-443e-8354-3ea16db9ab63.json and https://artists.proofprofile.net/proofs/artist/bff76f4f-bb69-443e-8354-3ea16db9ab63.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 0x7b99d95f903e0f26fa66d4fe1a6ae4d1b07c4ad1f3da6cd13f12047bfff80c92. 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/USUM72219408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c7a6c298f6f3258757f2d8d04a111aa2bb4f0b639144ccfce7609b8b1bdcc85. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T17:53:56Z), 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/USUM72219406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x548df4c8d232478f184cb6a1a56a0ea60d4cb65c6025850a1d754758a5c4c87e. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-20T00:23:16Z), 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/USUM72219402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0896ee7bda2626e0d4246194f4ca1ad7b3351df9a34a137931baf4c53847fa7e. 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/USUM72219411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a3752a193ff7b2fa53584e752299b7d24d07f126f6f2dd064f7a071f8667cae. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T09:47:57Z), 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/USUM72219409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d8b0b5ee263933bcf71b3ca9e62a5ddc9df50da107a4903ec7ece1d92892754. 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/USUM72219405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b99d95f903e0f26fa66d4fe1a6ae4d1b07c4ad1f3da6cd13f12047bfff80c92. 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/USUM72219408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x927c522741908b7eec3cfbbfc75b40f838cc4e16d9c5ced82bf3d13ac4f17b5c. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/USUM72219407.
In Jesus Name (Reprise) [with Darlene Zschech]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa974fc89cdb0c05a91fe548e239da27c97e7f98b3cc2327cf1deb6ec50e2aa9f. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T10:01:22Z), 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/USUM72409091.
Broken Into Beautiful (Vocal Version) [with Darlene Zschech]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x440852803202022787a4c14a5592ac8b83fd0cd72cf56d67daeddcbeb992b686. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/USUM72409090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bd3d5174bd8520eec78cc0a3cf3e3708cfe6b39e8b0764c5b7e6f4bb2af46a1. 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/AUHS02215161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bd3d5174bd8520eec78cc0a3cf3e3708cfe6b39e8b0764c5b7e6f4bb2af46a1. 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/AUHS02215161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f12e5745ca258ea929242a5d65a1cabb328ef2db489bd22e3a033df32358f08. 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/AUHS01507447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x791bb9dd540a339391204cb1a89cc154ae725d8953f04839289a05572ab8e966. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USUM72409087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe64337ea644ef9caf981c1c97411caa83a0a68b1efd7417a474b542e389da45f. Chain 2 (Bitcoin): anchored in block 960362 (2026-07-31T06:58:00Z), 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/USUM72409089.
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