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 0x9bfeb3a4574593ef6d66efa384c2c76f092816bfaa6233c5f28f4651b7830ae3. 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/dda16598-b7eb-43f5-8b4b-ea9281884802.json and https://artists.proofprofile.net/proofs/artist/dda16598-b7eb-43f5-8b4b-ea9281884802.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 0xb3e187dc141cf151891ae2cd9c0db0793e5fe03d372b3974f1f955c667b0513e. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/FR9W11504198.
Big Part of a Big Sun (Instrumental version)
I Sing To Use The Waiting (Apaches et Confinages)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3aeeacfe4bb1bbc68fa1ca1a3317c5154c586958537666af136f625df123b92. 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/FRQ822000060.
Gymnopédie No. 1 (Atmospheric Variation)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb4ccdc1dc3f2160b2bcebdd527d3aa73fa31e6bc020cfc0fd7d78a0e9c14330. 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/FRQ822300010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x706f070ad0b57c8bcb3eb5033f834a94eaaa6f5a6e0d12c1d11fc9e866a7177e. 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/FRQ822100030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77bc618dd28aa8fba84109e6cef48f937b06c5bc0506102a9eb2fcbfe9a24dd2. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/FRQ822000140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9196efc80ef703d9f3406e19c14014d3e08a6d4038ebd698dd2b192c16091e2. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/FRQ822100080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f463f9625d2ec24d59753f141c44634e3ce0457e7cd60399b5b9fffad299588. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/FRQ822100060.
Somewhere In Between (Binaural Headphone Mix)
The Wooden House (feat. Jay-Jay Johanson)
The Wooden House (feat. Jay-Jay Johanson) [Live Session]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fb2a31e67f4fa5448c6eccf3e839b3283a5616e566deaf9e272948f2dd58d4f. Chain 2 (Bitcoin): anchored in block 957876 (2026-07-13T16:00:32Z), 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/FR9W12426462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f90f740bd699b75af079710bbf55392d0506ee6d0a56ca5b955f27afb04bf52. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/FR9W12426459.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c49d5421ed87ce30b94ffcbd9cbdf7b8a7b04463e757e88b53af165593a24d8. 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/FR9W12426467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabbbe7459c945a7f594838d2302483a48f66dccedbc10fc385e619d065bc850d. Chain 2 (Bitcoin): anchored in block 957874 (2026-07-13T15:43:57Z), 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/FR9W12426465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x498a9a0842291fe8a1d29ca05abe7a3fc09bee6b9f564e8f1f1ef3e00a9b3cf4. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/FR9W12436409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b06ff97e4afe3fb27f21f22e37a336a367c7a9d117747fc34bed1eacf8805df. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/FR9W12426464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x715ee8feef0aeb9e4af1c9964a566a408d724a8370c852979c8f3191d64f5853. Chain 2 (Bitcoin): anchored in block 958410 (2026-07-17T12:18:07Z), 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/FR9W12426468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fda5aaf3a739c4e1a3ea634584c899b53fd618970cc3a29facc93f6425f0c82. 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/FR9W12426466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8db84d4c3588cf99f92f7c5ab041fc2913cef12e799621e05ef53995b051e02. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T09:14:08Z), 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/FR9W12426461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad058b2eba0b0cf9c06b0406604d76698851113b3e2362d75a18584abfc69e5b. 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/FR9W12426471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x621548bbb52517a127f3f923c9c9eddf80a7a85aaf80e984e863f4fed03a027d. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/FR9W12548898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83d2f0b63386da02c5a161d4445b1fe06a6df4c291a611e1523244e2434d3385. 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/FRDKW2108036.