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 0x69da996a5fe4511c1406debf5bfe967649dbbf1dccc1df80a89ea7302d5559f1. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ef593631-9124-4542-b5c2-56ef650e26d4.json and https://artists.proofprofile.net/proofs/artist/ef593631-9124-4542-b5c2-56ef650e26d4.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 0xaca74364f59c6dab5316863e3b9388dff88a5aa60150754e12c4c92390aa3f78. 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/TCAEZ2080463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86b2afa37fb5729775c24eba5344a1aa52af33d408f1986d2b37d88c7a623b74. 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/TCAFA2041285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ddd8fea47afd1aa1199ecf1360136baae2bd300e9b311cce41ddf8cb33ee9b5. 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/TCAFA2041289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5af89c5cc2a46714c055971a844354a77bc2057112bc48edc2c0ea967bad201. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/TCAFA2041291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ba1d9f20af12b55c1dadf988987b78fd0e10b111fa9d6fcdf8066974bf69f9a. 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/TCAFA2041302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42a2753d69115594a4c4f359d34947095620f2d6d3a004fa4e93c0010736343b. 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/TCAFA2041311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe789a3b76b2b807065dddfd5d9805fe755a7e017ed07bd6204ae5d385e7b05e. 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/TCAFA2041315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c5de2655450cafbf02e7b0c65b2e7739e58be8a4102510fb6409429b16feaa1. 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/TCAFA2041320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb1438f03d0a057d2bfed3b3e2b6d99428b92dfbcd2859fab9ad4271fc9b8c25. 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/TCAFA2041322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb88f934ba44a73485098b995fcc295bb0d7a970e48e8c054ec7bae08f4d4d8a5. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/TCAFA2041296.
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 0x815992e5b7252a3b8c30b4c33210d521bf1dbadcd038fdd61a3967884a892b98. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/TCAFA2041300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcd60935a7b0f3b45efdc58bb7a433537187ce880acb68aca74f01b84a35fb38. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/TCAFA2041306.
God Bless Edgebrook (feat. a-n-T, Wonderus & JaeRene)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2b373db0eb5384ec8cb17bc72d87bfbe1852733b7b3ad91b2226b1e0fcbde76. 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/TCAFF2066240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc211e659b1a4b7fc9ce53922cc05e9a379c32787d3db5b7ac1b3f528dcd4b270. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/TCAFF2068527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05696ce67963317381cff1242b08df6445e5a0f1df70db7affb8793a81326028. 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/TCAFG2017851.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e4663c3bc7b67bfc188c956e5b5bc8c7b5b68422b521c91cb9ad2901ddf5507. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/TCAFG2017899.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf05aded58e3d698dfd9a11d3173f30eaab0e2febdb179455e65d9a32558976e0. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/TCAGG2294333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85f8c1181d74541ce3f49e22e50974f75f4537a73ce582af7badea398d521205. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/QZS7J2362118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x109860bcdf2046ab4f9c434609741c7c9870619fe7ca6e38017df1e5515b7598. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/USUYG1597467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x368044ed6c8ec97f64d8361cd1f0041bcda1efa7e7c52f1ce4226ce80601be84. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T02:06:43Z), 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/USUYG1700662.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x772aef52ef8b248d982d9fc5e620158971d040edd294ed9a6ae95d478eac37a3. 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/USUYG1700668.
That Type Of Christian (feat. Isaiah Robin)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27ece24947836cb580fe149654f992742831ecd36b948327e4cc725f0081b321. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/USUYG1700669.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd247f5037df9fcb6716629e07a6c24618f174205ce68280811ee34ba012d1e85. 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/TCAFZ2260253.
Sunny or Gray (feat. Von Won & theBeatbreaker)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f03a29d96f656b47ddaf7b7796844c290bc83e7f99c8b91bcab11f89992f4f1. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/TCADG1779622.