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 0xdc34723ac88db1f9d926cd31a327c4785b1076abfadbe01d1b1e31e56f648e6b. 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/b56336ea-032a-44e2-80bc-55b532415c23.json and https://artists.proofprofile.net/proofs/artist/b56336ea-032a-44e2-80bc-55b532415c23.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 0x0aa5b895f4821dabaec8b3868eb8ba8508c175ff53411302b9b283ab9fb99b7d. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/USUYG1267528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c9ae882734f6c2fb6d711d3c213eb98b69be7cb168e5d74b54bd2446ebca392. Chain 2 (Bitcoin): anchored in block 959009 (2026-07-21T15:06:19Z), 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/USUYG1260934.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3202d76a649cba7ae53ec330d2fd56476c833534cae5439bfa1d662ce0c7405. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T14:59:21Z), 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/USUYG1429055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7814bfa55b079fed9982605bc52139a5ba47003a49af14f974c065eb4a4d4165. 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/USUYG1498100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac6f845a885a0977a6c7fa5e566860060862f1b09f482a1beecce88aa5c76b76. 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/USUYG1498102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdda2929bb1ffe5eae62f25d0972b898be85d44ef5cf1dab8acd3078c12b298b1. Chain 2 (Bitcoin): anchored in block 958695 (2026-07-19T07:37:00Z), 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/USUYG1498103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa5409909360780b422d51cac3f737f15be0a8ca107728ffcaed8266677174a0. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-16T00:11:40Z), 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/USUYG1498104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a860e1fbd7e4c34008b5237d6179a10c218bbbea89d280fd76628153113dc77. Chain 2 (Bitcoin): anchored in block 958496 (2026-07-18T04:43:53Z), 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/USUYG1498105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84a4335fab12edb727aa869d9d30786758e861621be271096f23f48b7d8f5bf5. 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/USUYG1498106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cae25f8b41e8538cc30b33169f65b60e19dc4879afa3c1259b48abe56a4fab3. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/USUYG1498109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2865c1fc8f76d1d080ab59fd991990a3b34034cd8753b3d743b3d7c3bc858211. 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/USUYG1252012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce09a7ab0e97644dea76d12c9db795a55ab33851b5a9db47a5cf07cb2933253c. 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/USQY51037596.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaaa981689155b2f457e946e036252979344dd107eaef3a74c51a77011c3d14b. 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/USUYG1099461.
I Can’t Wait (feat. The Delinquents & 4rAx)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42a9698060a3ea003062bb048a29584efce4145dc269ce3e5749746fcff1d94b. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/USUYG1250852.
Trap Phone (feat. The Delinquents, Richie Rich & 4rAx)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa93c5bddad33560d7c29852d018d9d7c1130b8bfe65f892e6af2bfc540eb640c. 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/USUYG1190984.
I'm The One (feat. The Delinquents & Nate')
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8b066f06092a050aaf058df7b21830e3320e5902090fb0c2cff619316f595ba. 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/USUYG1433050.
West Coast Bad Boys Vol. 1: Anotha Level of the Game
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5895b70159d0defe031d59e31fe5d46db39d82b1b8b87a12c0e2c2b46ef0d17. 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/CA5KR2010947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f0160ab243a3cfc17e188c8e76feb4fb2ec09a9c55f5470a83bd1ead173f200. 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/USV351362202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37c04a6fe72c668bbfe86be20d0ede683b6fabfad215504793129b0360891778. Chain 2 (Bitcoin): anchored in block 957012 (2026-07-21T21:47:18Z), 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/USV351375190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5da325df850cafba5dc07dbeb69d579ce8a41fe5c61765a6a7440f0b21545808. 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/USV351357331.
Bay Area Playas 2: Raining Ice in the Bay
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49bbdd969643770a390d6677bb457ead852e8b24dda15f9ac83e325617c7881c. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/USBAE1306079.
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 0x767573cad6413ad7cb4e67a710ef8047aa8bcb7d609b87be210a015f66700872. Chain 2 (Bitcoin): anchored in block 960266 (2026-07-30T14:44:50Z), 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/USA2P0717818.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c0661f0bad230f4e38f959d328b0bd95b2c823c458f38ee8f6c67b2869be1cd. Chain 2 (Bitcoin): anchored in block 960330 (2026-07-31T00:58:21Z), 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/USUYG1003772.