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 0x8d86ad56f1829573896d24cd15360def4c00c296c8be18014d892151cd60bacb. 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/47dc7637-3c0a-43ce-be5e-e9382c694d27.json and https://artists.proofprofile.net/proofs/artist/47dc7637-3c0a-43ce-be5e-e9382c694d27.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 0xef9d97c444df5ed1f3efcb585da6b9b83c3364f638d7ac4ee52dc17124c64988. 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/SEYOK2021903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72c0733a4d7d842e5055d58b76ff6fe68cbf0f616bc3b16ea19692f01ec30fd8. 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/SEYOK2021905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2932f3c84774fd407a5b72ddf1e51f92eb105e935de0145cc0a6c7c90fd30327. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/SEYOK2021908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e65effa01b78a0f36b81d79f33ef2da36f87042702f21552dc611a5f0d53f52. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/SEYOK2021909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04d75754e5e84180b801c9ee651ba3d9f6e397d1824093d318e29aeafdac3a8a. Chain 2 (Bitcoin): anchored in block 958686 (2026-07-19T06:43:29Z), 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/SEYOK2021910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa46895d9950d358632327fcf121bd476159a745f4518d59ef89fd2eaeb04dd37. 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/SEYOK2021914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57eb70fefb484fd39f3a6f738ca9a05aace3265fa0fb5d12440d0a9e14e1b795. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/SEYOK2021917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b9df98f1f2d11f52147418dfff046301d0e997ca8dcc36d527aff243729b712. 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/SEYOK2021919.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67aad4acdcfe6fadf83477f4d0bbb2b0af0f25adc19450711db1670de7c2b1d8. 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/SEYOK2021920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69d4005f6c122275061b3960aa1945f90ae0a6d626be79c0ab41714058a22465. 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/SEYOK2021921.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb13939687b386f16363b78b606750f1cdca0fb1619c3ac3b208e6a913346f06. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/SEYOK2021924.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7328aa79f295c602c21baa2fb0e2cb76339ac9098c622f155ac57a9191f33611. 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/SEYOK2208201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc98156b2c372b504bcdb60b712bbd4a39fc0d9d547369a867b135ddbeff0c6ef. Chain 2 (Bitcoin): anchored in block 958695 (2026-07-19T07:37:00Z), 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/SEYOK2300956.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfef28195ffab71796072cc1223b4e15340529bb6a4526811d68720ffd56e607f. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/SEYOK2321723.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b01d2304c4e00dd45080c1ad6a4697f3296bf376847a4e973ceb22ef6df8c30. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/SEYOK2404263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a224dbae38b6f0d312938416beb145bb07259bb529adbe2356a104419fc591b. 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/SEYOK2404264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb68b71bf1868087ba438a32d612568d7150e00d024c9b333a1bdbca40617b988. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/SEYOK2404265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4f14c9a3bf258489834400d515f540284b4e15d3e53270a14ff8c097f0d1cdc. 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/SEYOK2404266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d321ab891724b67202db10e1b3a5d1add33c8c6336def4a40f79ab632cbd222. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/SEYOK2424407.
Feel Good Frequencies - Unplugged Sessions Part I
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x518fea8dcc6dff8774fd81f5023d84e69b6dbb7fdc8e5c398a771b28048db6d6. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/SEYOK2512563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb086328b7ad2045df439a5b6b1f0aa8c91539ac359a936a0fe22f20aaf914674. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/SEYOK2512566.