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 0xdb2bb85009b8530455fe1ca06709ef77a4df9a80f295d7f6b0909376060b1728. 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/430fbc54-a189-4826-a873-7e0838335263.json and https://artists.proofprofile.net/proofs/artist/430fbc54-a189-4826-a873-7e0838335263.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 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 0xc2bfa4f638168dd9c20da8ec1fc7ae3a350aca322caac3fb5dcbe39d02f07db6. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/SE4RG1930203.
Household Machinery for Sleep and Masking
Hair Dryer Monologue (Pink Noise 2.5 kHz)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb906c1c94ee0aab1e52a21622ef98f92544d6500bd4cd058a80bb6c1aeb72622. 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/SE4RG2001402.
Microwave Owen Lullaby (Pink Noise 333 Hz)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcecb50f454bb2c552363cc775e45ca6cb74aeedaecc84c9a2c8ee3f87bc5dce2. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/SE4RG2001405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf5bf62b08dc39e41f0830f73e35810f4cf74085d4f89c6c46382bd452095c75. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/SE4RG2002502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x741776fa12bff90f625827c258a3ba80e5d61e84765c1f73aa6f42697b25ff4c. Chain 2 (Bitcoin): anchored in block 958395 (2026-07-17T10:10:33Z), 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/SE4RG2007901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b021f3207d24af07f719c195e6fcff854aff6f581b19c9d3038f8e5972c8da5. Chain 2 (Bitcoin): anchored in block 957752 (2026-07-12T20:53:32Z), 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/SE4RG2020804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c36405b873ac042a63432582f654746c0992a588663b42e80569bdd6e782a80. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T09:16:54Z), 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/SE4RG2068903.
Rainbeat (Beta 22 Hz, Serotonin Releaser, 3 Basetones)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d6b81e44ccf52ca4980d9b647d60a6058f4e3e9e4b596c7c7e7dd76de38b25f. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/SE4RG2074403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26992cfa6cb977f13fe26c1dde6bdd90a3e462183f13e231c42eda704a9365a7. Chain 2 (Bitcoin): anchored in block 956425 (2026-07-03T01:28:11Z), 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/SE4RG2074404.
Rainbeat (Lambda 108 Hz, Total Knowing, 2 Basetones)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55a6250656126c9cfea7578a5a39bef5c663872fe8a86cbf37f6f577eee789e3. 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/SE4RG2074408.
Rainbeat (Lambda 108 Hz, Total Knowing, 3 Basetones)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81d05f19ad6a6a6ca2019d758300e6f9a1318e5000e264ee2ca001d369864b9e. Chain 2 (Bitcoin): anchored in block 959094 (2026-07-22T03:33:16Z), 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/SE4RG2074409.
Rainbeat (Theta 6.3 Hz, Astral Projection)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14cd1769420117a11d26ae6cfd162cde2e030de228ff02c167eef235ce440231. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/SE4RG2074416.
Rainbeat (Theta 6.3 Hz, Astral Projection, 2 Basetones)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01181657973aa02c55fe7b31ddaf22ed07ccab69457b97c2c3044be715a13ae6. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/SE4RG2074417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9aa4b10fe70a1f36f0fb0b5fef27971d4b86bf0e3e4ea7c250d1399fc6400a0. Chain 2 (Bitcoin): anchored in block 958395 (2026-07-17T10:10:33Z), 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/SE4RG2073801.
Magic Rain (1.1 kHz Lowpass, Grand Hall)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14299645078d07b9381ec843c9d8339d3ecfe56fe572db42b4cf79ab7905edfa. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T10:04:40Z), 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/SE4RG2073808.
Magic Rain (1.7 kHz Lowpass, Grand Hall)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36eac6a4f23b72ca967013f255f00ff9256558df9a6fba0b1f08a2d973141a53. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T02:13:45Z), 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/SE4RG2073809.
Magic Rain (13.1 kHz Lowpass, Grand Hall)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc82d01d22d9e462ca5454039d723712284fa7f1ccd485da4fcf79bf3ea73ae86. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T06:12:52Z), 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/SE4RG2073813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09f77307762916debebc863825e244de25e78e50165e1333e96ca914fad00fbe. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-15T23:40:10Z), 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/SE4RG2089205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e36d949c1bba749590453e5a5d151c35295872455ebd386e01baea71e1981e4. 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/SE4RG2094901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae13e36494179dbbc6915620bbfd4a4259df2bdec907949c6f24b57852a6a7c1. 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/SE4RG2094903.
Melatonin (Minimalistic Delta B…Headphones)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06e7645c612965dcfaa9ed0f8d07f4fb77f0ea768e7911cf047d0764808f2397. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/SE6RB2010701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c9da83730ee070811dbddd3b11db5e5f1d34a1bc6274baea1ef5c1c1a10632c. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T08:19:47Z), 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/SE6RB2010702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc868eea393469cf3d58543a3eb3a02d348c5bf334af41cd97bb4a7dcbee7e1ea. Chain 2 (Bitcoin): anchored in block 958969 (2026-07-21T04:58:13Z), 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/SE6RB2050303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8065e9e97cc2ee088ce1e19a574181dce93e171063e80920a78c551dfcf03335. 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/SE4RG2106804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c22ecbd9b9b00e0a627ab92944e71441c61c299466b6125edaf9a26522abb0a. 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/SE6RB2128201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b85c13821cbdf6ef65961981187aa377683b8e68fedb8d2eece332a1eefcaa8. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/SE6RB2128202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6af38622a4e9d3a8487849c681f97e13c7992d651b2e6e74fc83616bdd11a3c. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-17T00:05:25Z), 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/SE6RB2206411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e5f99b6ac023652b519aaf9d685a2757ce3b286b6442e52a30c83be2f5f229d. 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/SE4RG2300934.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc6e93814a4b22bc7a15fe025f956c4ba341e8d82cd62c633f7b46bcab109e3f. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T05:11:46Z), 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/SE4RG2401496.