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 0xc1f41e5fb862e9285c35c7d83a685d62c2c59b2e06f297f180477fe8ce9876fd. Chain 2 (Bitcoin): anchored in block 953645 (2026-06-14T14:31:42Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3e27b1f0-dfbd-419e-9500-2c9e49b4a71f.json and https://artists.proofprofile.net/proofs/artist/3e27b1f0-dfbd-419e-9500-2c9e49b4a71f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Walking With Pharaoh - Jack Essek Remix - Mixed
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 0xe5686d2f78d18b830c1c9ff3a0a69888ed6a564596fae8fb3e932b9f82698bc4. 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/US83Z2238387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d894b15c82dae9ad4cde2ef3233fae763bcd79b18fe1c0f819348edcc23776e. 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/US83Z2235395.
The Mystic Lady - Mikhail Catan Remix - Mixed
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75e2905f627e700ce4fd9d1303addae4ac4a71e53b4caf0b8d026065dc5cfc27. 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/US83Z2230161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c4c613fff30b4d8bbf77dd39ea3c08c6744a03f3e7933e25f3e778c07376b4e. 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/US83Z2234165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x779c7d601f1274e040c06e3a171f62c839e032a4993f275d46992c0cf1fe0c1e. 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/US83Z2150727.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1c03914d4e28afc1d13d647cc312e37a168ad7899a0f5c3a67132c1219d0849. 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/US83Z2226562.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa77f7451825b3fdbe526a713c2f5115ee3ac874242a6ce5e865e7a14bb51f333. 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/US83Z2234189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ec8154f0212fc5e474da3d0d275bd4fc104cfa906f825e01f2ea9693c727b2e. 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/US83Z2235360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6786a03b72f511bfaf60e6da1c86c7aabe7171e6a0ad3198d5e047cf8aa6d784. 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/QZNWW2444644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa83d22d86cde0bf12cf02aadf0e8ffdb052df2dd3898123edf980b71475182b3. 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/QZDA52336022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2d50c5085023da6d2a19bfcc12b778b7f9184ba9cbffa91ef9668b5c121282c. 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/QZFYX2319663.
Lose Yourself/ Till I Collapse/ Berzerk/ Slim Shady/ Venom (Mashup)
Lose Yourself/ Till I Collapse/ Berzerk/ Slim Shady/ Venom - Mashup
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8076f12cc5cb4caa8ba1186b7743dd4234d5def9ca76c401d940df0f551c30c8. 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/QZFYX2319686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91548ba24c11f8ec0f1c115d71cc812e4e8c6a56f01045c7d4378971b67dd924. 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/QZMHM2205557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x781cabd2c32951674166774819abd796f82cf81dab3a83401e5f1a53e36d097d. 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/US83Z2488798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7db21c5a77a30c664eabe442e3b780980d9b6b0d3b0198e421851f3425ce2dd2. Chain 2 (Bitcoin): anchored in block 960407 (2026-07-31T13:26:30Z), 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/US83Z2220141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb17a27269604421478a718a2c28c2e31decb18e35539aa1a42c2cff75770a8f8. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/US83Z2220142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bd98e39852d9fd2ce8d8d6f3cc25de583013c189f622d13dddc06dc2d97e381. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/US83Z2220143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1064923142813fb493b000ffe2fd7cb858db0b51db430c3f8b2a2c23d7f8a1c6. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/US83Z2212009.
Oxford Suite (Nikko Sunset & Dim Angelo Remix)
Oxford Suite - Nikko Sunset & Dim Angelo Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30bdb28e31ca42adaab8e7ec28bde64c15ec47083a569f3177a9e86ba906544c. 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/US83Z2212007.
Oxford Suite (Elias Fassos & RisK (Gr) Remix)