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 0x6383ed6cbbf2a65fb44e29766a77f1182b7f9093be448d9c4bc042794cfdce83. Chain 2 (Bitcoin): anchored in block 953777 (2026-06-15T11:52:51Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cdcacc37-e627-4d16-b7ea-4a295cc5dcc5.json and https://artists.proofprofile.net/proofs/artist/cdcacc37-e627-4d16-b7ea-4a295cc5dcc5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Lee "Scratch" Perry's Guide to the Universe
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 0x16f10f533ded9bbaef5cbbbf94838f3e4238dde0aa786b7ef3e4cd7375fa0a30. 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/CA0WS2199001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae5322fbec7ea30921c97f3fbd26c8ec1cc3fbc00f049d2fc6d491f924cc5b10. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/CA0WS2199002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1151ecc695e90e9f8abf87016ee7a4f180dd4f93a8806b0dfd5918e22f84c3f0. 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/CA0WS2199003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96e27b53d31dfe4b0bb1deaa24a33d26e1246e54885f4e9f17a0081927e297fe. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/CA0WS2199004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf926e4a2a5afa700c63d3933bf7812f031ead97eabaeb8fa33a51e0e1caf41d8. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/CA0WS2199005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb41faf1a3f17af93fcd0a0727b480262eeee8c95f266db7bb3ab45f35c3441b4. 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/CA0WS2199006.
Conquer the Sin (Raising of Lazarus Edit)
Conquer the Sin - Raising of Lazarus Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b59ba500609ada709dd34d3217e385b0d7e39681be4f095b94a22ab9ddcb202. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/CA0WS2214331.
Life is an Experiment - Kismet and Karma Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70f755065bd28d95e6320c39f70f5747ef119b60e027e4e5d4ab5efe7cf5a2e6. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/CA0WS2214302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3559cdaab4fca2c8ca65cb47b09df7de279919a6a23e1f5c51fe3bd05090821. 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/CA0WS2214303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42c1c3c8eb9c439bb972eacd3465959803d5aa239950ef43d49fa13bc7bbdccd. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/CA0WS2214304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d65201ca3491e2beaa62f7b7efaa81128cb7bb7e010983d660c63201da65400. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/CA0WS2214306.
Holy Dub (Hallowed Be Thy Name) - Quicksand
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57834f2e7f38e3b59248926ec0d022784c44e2a79a440943746eb0c47c7bc5b9. 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/CA0WS2214308.
Life is an Experiment - Cloud Climber Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa462c0fe8ced3d411c9bb6c01b874423b7c768c623a533aefec4407c15bda44e. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T18:47:29Z), 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/USA2B2305383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48bec79ebbe49c721ede4e8ebf90c53fa528fdcdf6954a2f294128f606491349. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/CA0WS2315701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d055393a97cb9351a84bd1d436ecfdd282143860124d348a478e0f2e1edc9aa. Chain 2 (Bitcoin): anchored in block 960198 (2026-07-30T02:21:55Z), 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/CA0WS2315702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3516275facfdafec268daf19c53f74340fb24f06968ab54440fa7b9c94422e93. 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/CA0WS2315703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fe795cc0a241d21930174f63273f06497fe023b030613cb8b1b93669f74dbe2. Chain 2 (Bitcoin): anchored in block 960381 (2026-07-31T09:50:11Z), 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/CA0WS2315706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x887f0f8e6286175024a484f44c90c704633c4ba9f459b8651d62a3f743568621. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/CA0WS2315709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x416969ee6a9d5054c8fee9971c693cf560efff6a8cf8f98b11e4945e936fdd46. 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/CA0WS2315710.
Life is an Experiment - Listen To Your Dreams
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d0040919bc2d084c20360c42aafa32982091dc36eebb692d6f866b05283a720. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/CA0WS2315711.
Life is an Experiment - Cosmic Toothbrush Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x894a9a4f6dabb7175697c338164a9f79344d6832a8a63bbac51f6264c9d68931. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/CA0WS2315716.
New Orders Album Megamix (New Age Doom Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8b26513bc440ebee91dd2e7e81c8741431b942faca27ca4f5d5ef0e9dc01f68. 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/CA0WS2317601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x000e831e477a97580698bd9c60928818ab0c2563e64043a13d4de865fe9bb6d3. 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/CA0WS2317602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc59447c168340acc3aed2a2933230be73620e62861e643d058652013ffc222b8. 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/QZPLS2575394.