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 0x1da84f1c1034978d0a7874134c9c8db01f1abe7223f27fa12390ea7bc6329573. 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/f9dd0d75-a6f6-473a-8122-5fe453713070.json and https://artists.proofprofile.net/proofs/artist/f9dd0d75-a6f6-473a-8122-5fe453713070.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 0x5eeda214f40d5bdb721f6d7fb2eaf3be8d28c3c0f5a12c702974504d93837ad9. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T07:19:23Z), 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/QMFW92300380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcce814f1b99ced0f8b3262e556865fc5c7767da6da73539257971ae8b8a35607. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/QMFW92300381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60f44581d5edd174245c0de1b783207951f13bf074c683460ce179400442bca4. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/QMFW92300385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10f3b176afb96acabff568955f7adf3340d4cc43f8831d3aa95ae7b556809ab8. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QMFW92300386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x408da992fff7ab30a230dd7e735908d266c4e8c24097643a62a3b02f7b8faa53. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/QMFW92300387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ef3a641cdd1a94cf943ffe584da1757b97eda90bdc522ea8efd2c74df6f76ab. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QMFW92300388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa35e6e3d00c03a4c948b6bffb1daab63a5c927726f1da8d6fae08981cd12be81. 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/QMFW92000225.
Sometimes Darkness / Railroad / Sometimes Darkness Reprise
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdbed292a39d62fa62c5f75a990083fb8aa31d6164ec5115bc84a81c0bb5da34. Chain 2 (Bitcoin): anchored in block 957820 (2026-07-13T07:54:01Z), 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/QMFW92000226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe25ac57158993a7bbdf06300ee9f35b10ef7e3b5bee68414812f4df75dfa7c3a. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QMFW92000228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2f408d3ae0ef6a83d30d0f585b72c409537df96ee9359ce8553f0be7fb54b9d. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QMFW92000231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c3ba3e0b3ffaa16e1a00b1cd9a631e40c615f7fa92798e82f4e3573076f7cf5. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/US7VG1700680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96ba861d31644ff37dbd2343a5f7949b4ff6d5700770201d5d73dbb7680131e4. 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/US7VG1700682.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37e55e3b20dde81fe54ba0e3084ad7cec5b02d85a8f843a00bc500893639a84f. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/US7VG1700684.
Wires (Donny Angel and the Opening Wide)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d2716a747f444341c47fdaf5289a0c1a321ccbaf38bf538bc2deaf0dd757258. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/US7VG1700685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcce814f1b99ced0f8b3262e556865fc5c7767da6da73539257971ae8b8a35607. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QMFW92300381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60f44581d5edd174245c0de1b783207951f13bf074c683460ce179400442bca4. 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/QMFW92300385.
Sometimes Darkness / Railroad / Sometimes Darkness Reprise (OurVinyl Sessions)
Greetings from Marquette: Music from Joe Pera Talks With You Season 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x696c071b3d6ba9dffd6a7cdbe777ebb2f1877855fec8331a808b90bcd61a5452. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/QZEQU2028888.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a77006a0f5ee5c6ab90d5ccbdd4ba365ed858105b2498fb1e82bbad561479df. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZEQU2028889.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa07ee597e768668623d0df028eb2fbdf6ba78e80871229bceff40ca508d37c5c. 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/QZEQU2028890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11a49085c46db95747b93ba65ba1abf35ba3e0848a90142304705aea1419792c. 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/QZEQU2028891.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32dd74590a3aa6479e7e6419ea0c83ea6789b6a4dadfe447c87321878e141188. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QZEQU2028892.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b35d66ee8b0a1c5ca5d8635759d3bde8f67df97ea8986fd9ee67f71ab786551. 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/QZEQU2028893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e1ee9d52a6fb83cca00c7c70aa89232b4b5193b45360ec4259fb0f53987bc4f. 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/QZES81816850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8341dcc13ab44ff50ea4c64d327d696f792d7bdc50ca35ee26a28e3e8b89195. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZES81816851.
The Shadow Knows - Audiotree Live Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4aee37e00d0096cbb00c82693b941b0d70097a53602be46892881d5823494cf. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QM99V1706102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2abcbe2ddc6cf866b5af5dd065baa723b1d66b71ed6ed3d4683263ebafb09ee. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QZFZ71925118.