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 0x7e18a8556ee4d7a5a8b58488e61c25852d84cd0c5b5c8321cfd467798bed96be. 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/f5df4e72-3327-4470-abeb-7945da86ea77.json and https://artists.proofprofile.net/proofs/artist/f5df4e72-3327-4470-abeb-7945da86ea77.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
I'd Rather Go Blind - GC PRESENTS: The Box
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 0xde880a1a1e1df5edb7bd34d493819a1e02c63320443d076a774dac8c50c52884. Chain 2 (Bitcoin): anchored in block 959076 (2026-07-22T02:29:05Z), 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/QZES52169091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa47f72a3e4b43fd583064fc025b1dd2e46c7c5adfe4c453d572cfef09d9b6ee6. 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/QZES52169094.
Deep End - Live at Mare Island Marina (Acoustic)
EmEyeAye - GC PRESENTS: Live at GRND Level
Dangerous - GC PRESENTS: Live Session (Piano Version)
Out My Mind, Just in Time - GC PRESENTS: The Wall Live Performance
Georgia - GC PRESENTS: The Wall Live Performance
Next Lifetime - GC PRESENTS: HUES Live Performance
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c783224b1f6c78a3dbc705278c3c97b580db761b7713b8d4233d1926d51de95. 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/QZEQU2302104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x786d0766a9569f3bc58ac0224d98364f634510f2876c67e5e61fdb2d160eec4a. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:11:16Z), 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/QZEQU2302105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x813e255e4b392fde5f3c24c1ef547fffa52866fc086e29cc7278b2d1c3efd4aa. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/QZEQU2400026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc37997040bf91ac4997d1953a3324571bd7ef7d76c95a109eeee593d11a453ee. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZEQU2400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80d4ce3fc88dd193e26c9b32c3ced10262af98d0bbacbf16c03b066dba23902b. 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/QZEQU2400007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe75a038383c2401e94cf29ddcf94ebd7405c80a75ec5a9553fe2a94a821728e8. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZEQU2400008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7618c92eacce5cbe1f874782555bf765d1e1efad022d648a86f2a1775a407fec. 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/QZEQU2400876.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c8e657a19e12377adc28c882590e5e466107d9e8d5bb85ab7863177829e3991. 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/QZEQU2401136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5524776c16b68b636783f73efe2eb4a3beab9315471a75f82174e4a2da7556ce. 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/QZEQU2401137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e6686ab2f09531c80adb2ddc9ec2c15e0146e0c2a0214d4bd10ff00bb955923. 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/QZEQU2401138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae09a8bc9862a5f4ea5eb02029bef09a2d8c085d400eaa65ce6a3ee5f98df121. 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/QZEQU2401139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf491a284241b8192148a8c09d1df81343bcc1b064e68941a5e840bd3926e9e9f. 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/QZEQU2401140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dff40e58622309c5d1489508c77e2a7e1357fe2f3942709114075a2313f2b21. Chain 2 (Bitcoin): anchored in block 956861 (2026-07-06T01:57:57Z), 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/QZEQU2401141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x423e441ad6947f77b80a88c675643483a74e0da9f5c58ebed118fd1440c41c1b. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-22T01:14:25Z), 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/QZEQU2401142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c7bbfce9852336956038f0a38d7e604048a3335df1544634163a880d498b462. 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/QZEQU2401961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0595a57e2ded11e7e7dac0e2b86001189979a3e5eef26077beb3fef8c52f0f62. 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/QZEQU2502086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8362b2e62c072e1c825ceb69c3863a82d2026915cd7e53073929bfef5aca2c2. 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/QZS7J2316070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfdfe5e035505cf36a3bad00e768368c5a07d25233fa297a1186ed65d262403c. 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/QZS7J2395599.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7808fc4fa820bcacdb12bd5445dbed5abcdab78c0608220c7c530fac55e7f6ac. 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/QZS7J2349183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae7ce1ddaf5ec53fac803cdf82fc95aed219e55bb2cb6fd2e8838c2e35764c5d. 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/QZS7J2362406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37242731c80b477bc8906b7fe8f400814959b062745602e6b3f0607f05b8b5e8. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T06:33:30Z), 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/QZEQU2401556.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fb3f8b768268208884347f338d8b8da8dcf29a4add28bf470b8edac1274c63d. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZSYP2425307.