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 0x91baa4aa324192e047990f067b73673498ce942c4527d6ff486085ae5116c324. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e203e422-e479-482a-8d58-51021e466f66.json and https://artists.proofprofile.net/proofs/artist/e203e422-e479-482a-8d58-51021e466f66.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 0xd0372a047c6d8117d0a91faee9711bae3e2bb4266b9a53f83276e9bb97f432e7. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:24:02Z), 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/QM2PV1745926.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x308432e17f4f37126c9bbde1f4ebf06b7368674a0017cf25da9cfb6815092f24. 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/QM2PV1761038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb075f525d7aaeb5b5eb29c1ea210fd45f031413b59d75f3f4379af33e00d08b. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/QM2PV1761049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae1a2ea220f8b226cff643d97d979fcc36c40952d1e854d0b6a2ec8a1e78ffbb. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/QM2PV1761051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x991bd1da0d36e7093706e2dcaa5e3451166530962b09e20768152768529c87c6. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T02:04:01Z), 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/QZ9JZ1716948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x629dbc88992f1abd623fcf77cf05fec87a18ee02cf81cbb82fe0ca8b6f9f219d. 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/QZ9Y21762209.
No Love for Em (Los, WB Nutty, Rio Da Yung Og, RMC Mike, G.T., BabyFace Ray, & AllStar JR) [Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91771128965f15e29312d7e60f75510f1861dd6b8e502800040391a922123ffa. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/QZK6L2008706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x606ea85700afb3023a22ee618904d9dff869a639c10769648d6592854a68523e. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T17:27:09Z), 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/QZK6L2008709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb1678644047499b8ec743f3aee6db9b77448560ddb1d58c2292b52d3276af02. 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/QZK6L2008710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85ad1055e6d7eae23999481d8dda07ce6ec3c8bb0f5140cb119e7d31c7c012cc. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T11:20:05Z), 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/QZK6L2008711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45aff848e5254d34665d77b0862f0f363b464693583a145a243c12bd0f267ceb. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/QZK6L2008714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49bd97893b155bda36bc90ebd683281686077fd79dce60fe241b5ea6d5ed8aeb. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/QZK6L2008717.