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 0x3145a5454baf9eac0d01e7b93202ba1761467c8d71c038c67a1dd732512787f6. 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/a4562ea1-56c0-4845-a0b9-0f7266bd7be2.json and https://artists.proofprofile.net/proofs/artist/a4562ea1-56c0-4845-a0b9-0f7266bd7be2.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 0x499837c9bffe775cf9aa982fa451e73a528ccab7763db44385bb51315902e058. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZGLM2250870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a4c61af315437e355bf69c28896465d77ca55f7eb8ed8a132a446ef67a54f70. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/QZDA52450354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f8818691bcd2fabfc8650cae6b28a40b761fb1e4bf976ba97ebdc9f32436353. Chain 2 (Bitcoin): anchored in block 958722 (2026-07-19T11:03:50Z), 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/QZDA52450356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe94647e477cb771596881da34356f509ad5ded92ddbc223f79274c09a72080e5. Chain 2 (Bitcoin): anchored in block 958947 (2026-07-21T03:35:12Z), 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/QZDA52450358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d841d350d6b2122a5758ea45530dfad860a23b3ebcd4f0bdcdbee666091d174. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:09:26Z), 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/QZTPX2156786.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x039d1726048c7af522d8b3e89a09fff9598e261533f63fc776ae53ef0c4b56ff. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QZTPX2156787.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf06ff6ba3e4b2f26cf2014e5eb619003252674c23fbcb37e5551a06df393eb79. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QZTPX2156788.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x257071c37a7d52499952aa7db4c1bfcffab456aabc04cf7c5f3bf861989afc15. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QZTPX2156789.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15c122ae0bb1eeddb00d758b7c452d8fb9e0ad7c97d9f7b9fcc14b53f7b2657b. Chain 2 (Bitcoin): anchored in block 958722 (2026-07-19T11:03:50Z), 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/QZTPX2156790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x445302b358144e8f99f38a518159d3ec98673981b185af47f36750a771f7fb77. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/QZTPX2156791.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58c5bbbbe92aa32716d3d650d0d3cbe0e4535ffb432ecc1b6cad5113747d4dce. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/QZTPX2156794.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4441f92058405619756f6c172ae764ad2d71f5930363a2a67717bc22466ba7a8. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/FXQ732100094.
20 Years Whispering Blasphemous Odes in Thy Hypocritical Ears (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ac5a07d052a82492e1b84b0889f507fd7fc94a189cbe09dcbacdf04a257395b. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/USHM21939986.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc7d9accf787bddb2258d7fab56a399d727876d6dc8be0653fa43f1d4e65b3ce. 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/USHM21939989.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31ed67203ff1cec2588b0ba388cfa6040aceb7121435971d5e1834baa46ea456. Chain 2 (Bitcoin): anchored in block 960506 (2026-08-01T03:50:58Z), 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/USHM21939987.
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 0xdf487bca835284334afcf5a7315d729e2d27314a536755314de8750fc002723e. Chain 2 (Bitcoin): anchored in block 960311 (2026-07-30T20:45:02Z), 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/USHM21939988.