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 0xea3e0ae54ec0a60ed6febeb7c49f2a30b15021fcd3e607cfcb08cdf2410da3f9. Chain 2 (Bitcoin): anchored in block 953827 (2026-06-15T19:59:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f5eef3cc-39df-4e25-a421-398f10556be5.json and https://artists.proofprofile.net/proofs/artist/f5eef3cc-39df-4e25-a421-398f10556be5.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 0x81d5b42f3a966139c3ef2e9f7d92be94d9509296647c1967865384e0b7e6f9aa. 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/US83Z2315427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa916856c2c08cc948f549550217e4663a001ff6a66916ae30b6adbeec30c3e4b. 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/US83Z2241936.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f61a8d6084c88b7c82f1fb53333460892a198330a36b65cad139927639bd29d. 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/US83Z2327819.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46417bac8099019bfea596fc0880483739c7de5307a8c1c2e5b757564368ea2a. 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/US83Z2306382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcab55fd0e97295cf1f068e8580c7b8c1d2e06c363c3e56a07735a08e0c90921. 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/US83Z2135915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cbf182b31617fef66b0a03580d0e6ee7118f4e0522e052f782141ff9f0a67ba. 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/US83Z2135916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf692dd6f448e2ed36d15dffbf0e1b980ae1cfe5d1b9afd7306ac4b3343f15ae2. 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/US83Z2135922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf97ca867498e19b299d70b48e4a2e69a352023d14a60942285103185dddef42. 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/US83Z2313708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e307a81d1bd30c00918ad141002b2fe23e90522dfd5e82cc1d5c446380758e4. 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/US83Z2241558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b54b6dafeaafc858796e4258101af32d92ddd009b8effd56d2cb3b8208aa6b7. 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/US83Z2019510.
Utopia - Hernan Cattaneo & Soundexile Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x703c11a66281cc851d7b17610c8c0c779830d5ce64c653f964b5ddc5cef65454. 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/US83Z2138503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f2390755fc6e2ea1d4dd5e65eb080fb9a68cb4d097d99a98872cf8bfc0b56a3. 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/US83Z2136264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0165565498834390d63ee4dd8f830ca6ac765885ec12fc9f255306e1b0bf401c. 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/US83Z2203212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8407af2f18504d22b06f449d81a25355cd9ba6e790ca71602d8f404a9eaab328. 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/US83Z2129684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9907657043f97346a4687c544214a4ab327f347bb76f5ffdedd58b7046cb465b. 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/US83Z2050474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a626fc4e04eaf59d5410637c3b7062f18895e0e18e7fc1d6053ed876dae5369. 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/US83Z2128513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5215448410e854d95001b401bf3cd5f040d53d52e3205288e0b2be66d8414eb3. 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/US83Z2117861.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c2876fbad1ae076c19a71d31ea71ef0664e92c5dc3d6ac3eea8015ff339a03c. 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/US83Z2148343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x878a4f3781c4e466279f5e06fbb3c24aa52b9c0651bed65c9d3757937dcd91f8. 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/US83Z2005804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08d961c45192a19e029a3fa495c0aa7d120c739f94e8dc6a12263e922583037d. 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/US83Z2005805.
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 0x41d0890302bba328e0f8e99eb2637bd2bb1f39086641ba42735d52ef0c8703ed. 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/GB5ML2200018.
Travel to the Unknown - Julian Nates Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69d81845985017f11887aef01fca7549622f32a284b907ca3f37a2bf88295d0c. 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/GB5ML2200020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e4c5bb84cacaf61676f2ff5436a55db3663d9320ce44433a4b4720804260674. 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/US83Z2303613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dec069284076495e74aff2fc8883f286d7e02c83ca2af06c244c058e27c2181. 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/US83Z2236157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6da29527be88b20a3d8f9993933ee654f6b514323793fb485d5ae7cdb1e8d09a. 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/US83Z2240403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4349ed15780dbdb4a7f8fe66b6265b528927c6905f5fa90bafa578680aca856d. 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/US83Z2324797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1deb60781916d0c7de248a9f723f7cd15e6c3de7c95b807dfbd410f3e856b59a. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/US83Z2324796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4a3c08f2ea3a6f9ffd3222a7d384e9dc0ac44ab230d2b5b536a176c8f0256de. 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/US83Z2148294.
Avenue Sessions 001 | Seven Wells (DJ Mix)