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 0x60bfbec405ea1834519c06cee8804ed8e5033950d3912b0bec99d9c0aecb62ff. 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/7e76e0e4-41d3-4ca5-bb68-e0fdbcb7141f.json and https://artists.proofprofile.net/proofs/artist/7e76e0e4-41d3-4ca5-bb68-e0fdbcb7141f.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 0x40ee6c5e7a10ba5ea578ae746aaac35fc88ffe59ca938526fc10205c37f3598d. 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/USJ5G2228001.
The Place You'd Most Want To Live (Interlude)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc53d5fd28bc49dcb019e8123562980c61cefab59d9b43f8c5f579d8c4a2e8bd5. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T18:22:44Z), 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/USJ5G2228002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeda7c3e16b7c4f4c9dc5ed9033de114c34cb2ae3eaa34d2e274002b74460d389. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/USJ5G2228005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8613c0052803bf9bda183f76008dfb7666944ed61e58e3bff530006853ab4d9. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/USJ5G2228006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4b3f59a9c8ab1a35b3cb157e19c4aebf12f0dd166d596baeca53391fdadf334. Chain 2 (Bitcoin): anchored in block 957884 (2026-07-13T16:55:06Z), 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/USJ5G2228007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a184323a189111c6df7a9214f125ef5a8a78382e13192491d69143631411142. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T07:01:59Z), 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/USJ5G2228010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x853185b92a1ecbb3acb6e981f6d8e74267aca519789b9013e4046006b1e937d6. 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/USJ5G2228011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87085ca025c2311a61104ab5475d22308f39a5aeea6a5d18ae8abc119309a5d5. Chain 2 (Bitcoin): anchored in block 959084 (2026-07-22T00:50:00Z), 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/USJ5G2428001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6fadd6fea615cc46314780b77d4ca912b07e6664eb9c123b05e4d966e5f3dd6. 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/USJ5G2122702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2fa36043b0fd82ef80125cfc4a8a8b14098ce03b66b09b40995d9926e7cc3ad. 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/NLQ7C2200025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0116b7329d77625955b8489eea8a033432cbd27237548b7339ab3795de5d7b23. 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/USJ5G2122701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbab11e517ca892a620c2ad1a7c3ca71928715fd0f92c9033d22918b5afaa582d. 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/USJ5G2122704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ee5dc835cd7a4138a75c71c4dc31244b16a10e7ef5e65837b3d36318decafc1. 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/USJ5G2122707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2e45046fa57145add2ff3307a54ea879d433e40a30d7e91142ffc3a9437dbd7. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USJ5G2122708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dc11792531cc5e8648cf9ac57c64df626a93be2c83aab51069e77c245f7d272. 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/USJ5G2122709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8cec549c609ae71425a86bc2266e548e68ce5ecdbf281c93c1829fd3a0da6a9. 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/USJ5G1917701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fcbadaa2f581cf69d8d11034fb96e575bb87cc342fbf73f3ad24cedaa1f2bdf. 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/USJ5G1917702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd2b0ceac6efa037f3c5666f841d64d7cd8a840a62a6b400f657b91db54af037. 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/USJ5G1917703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b4c4aadc8c3974d27e42fdd0c0affae7fa1eb8582160273421c64a7f3e3daf9. 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/USJ5G1917705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c3b584893f6bdac30dcc085880bcd3d81ca26e02b3ac191cffc4a1f0e59075b. 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/USJ5G1917707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0354144a5d37fb6c5274aa6f6d2304cabbcda6242684421d055a36cc59452eff. 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/USJ5G1917708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36e9956eb91c142c49b331e9bd68c45db88b6918bf75549b1936e1d643025ad1. 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/USJ5G1917709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09c705ec77d3d73f807f880a3fc21036ce7f18b51f3f2af7508d374a9adbf7cb. 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/USJ5G1917710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78d631316f25d66e4c1766409c76a349a6655a8ddca53fa1576d1d408f97017f. 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/USJ5G1917712.
I Can't Do Without You - Live from Bloomington, IN
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x227673344552bed5bf0424f6b4f00a860c73c63c02901d7b6170b0a9a2854a54. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USJ5G1815703.
Make a Change - Live from Bloomington, IN
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce6bf730ab2249c33f9fde1c818f7c8591f643b0fffd3e3ebf61035fb986fd3f. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/USJ5G1815704.