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 0x5f665480697258c8a5f87b7bcfdd83d34574e215e5537e2ba5d2055e784ec998. 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/a0f98df9-c594-4c94-a57b-cdea6a2a2845.json and https://artists.proofprofile.net/proofs/artist/a0f98df9-c594-4c94-a57b-cdea6a2a2845.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 0xd725c96e9b004dfda52adf931225a2ed2ea891a33191029a4ed0ae90a5ae2967. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/NZAM01802206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34d56758c0b98b28b18844962cb9dbe0335fc00839dec091b2162ef2250a3d03. 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/QZNWW2342374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52cab3ecd83025b396f23bedee3222a0ee99a2ba6300ebcd4786ea4d4b14da5d. 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/USL4Q2061888.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x739e6a1740f9c47cf3f1c58d45a38e2c4a78798cc8d45f21504afca575a9c471. Chain 2 (Bitcoin): anchored in block 959155 (2026-07-22T19:35:42Z), 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/USL4Q2061891.
Fast & Furious Presents: Hobbs & Shaw (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa79e732a7d2bd0597acba95d7f72763df1c42f94cd754d1d92360737392f4de5. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USQ4E1904753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79771057376e3fd469729552c369bdc74c0b55f99405e257aef856e239e88aaf. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GB5KW1900004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d47c5b4a4748481385a51e34d028157db15f8e145d60c299360cae0fc9db45a. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USQ4E1904754.
Even If I Die (Hobbs & Shaw) - Hybrid Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x114c12d7a122de5525152e57ca89f81828bc30132607796507cfdc6375cd9466. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USQ4E1904755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x097abb02c34b08f5b01c70894527eb521775d3e360ecc27840956216ecaa391c. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USQ4E1904756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01c83d5bda315712341dbcc4c61042e1e64c94d9fe80945ccaf8abea0db73d4f. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBAHS1800443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1ca49ba6d276827d2c2c75199d6f3071c317bd309faa0c1995a9a5465f30df5. 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/QM24S1922173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e440f2a65cff79597ab958c791998d900815e2339e3646f45fc56da7e0f6b88. 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/NZAM01700460.
All Roads Lead Home (Hobbs & Shaw Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2394008d15474d891700765414af7856c03b637d94d46db7138f87421830567e. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USAT21904108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2119979ec3be5af9481732afdbe7b9344aa35fbfb55dbc21c80f5f2ca4cae4b8. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USQ4E1904734.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84e7655a8ac472f335aa71ce4ab60857f740767a46ce0b5b72bd381d37255113. 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/USQ4E1904757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce2aba1645d84c03be26fd2433a590b48c05fbccbc11d5213678a7f48b01fe9f. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USQ4E1904758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bb88bc46b4a9ba4a743b1c73257a67543b6804861e4ceadd64f780c872ce19e. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/TCAHP2378541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x525195295497cd16d6f1e848ade5a3cc2f80007ea9b81fc1500945b3b08b47cf. 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/TCAHP2378667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf07115753ec56831c243bb302711851b85fff08d6f0e57d06302a3a95c008fb1. 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/TCAEC1999989.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c47342b6eea532e5c78b0581b45eb1e3894de1e3cfcdbaafa2ebc35f3600ada. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T17:18:56Z), 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/NZPB12400109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86dc0d8c053723385a094f62a57fa60bfdd8a60640d2eb9b4ed17cfdfdb25047. 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/USA2P2401021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e78d805be5940b6a3a43d442a3e03fe6d3eedc4325ae605bc8b34e7920aa8a7. Chain 2 (Bitcoin): anchored in block 959132 (2026-07-22T13:20:46Z), 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/AUWA02201673.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce4e3c3057098d3db0495a5082ae59eaa7c1edf53582970caf9303a4608d01a6. 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/TCADU1804952.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb10e978e6427a843b37e9f581acd5b0e3c2cfbaff916dea3fcbcf72646b054c. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/NZPB12202882.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4bc1ac1d4a2e32826706e0b270426e6587bea83fba31928195736bf0940cbc1. 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/QZS7J2268853.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf99008197b8ed1c9a34e4b2bb3d9e52f00a0bebb1e8276a75d5d6f7d32ab20d8. 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/QZS7J2291112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d638c4102747bfa3e17bc37e7981d65e1441d04b5dc3d98b9d48d32bb5151ea. 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/QZS7J2267382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8191d578143421d8e0c0d10202251bd1033e0cdde7ffb2c06a1490f36d8ea84c. 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/QZS7J2235967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa9c7d788d9ac7ac8d7cd834781e8b347b1c47af3ce9939380f32aa456c4bf4b. 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/QZS7J2226105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9c27b7d39f41fc4c2fd9f608089bcd7e7fa7070f89b17dfe8ab0d2878d86254. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QZS7J2245949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6f5449dd9fc967d4a72758272ad7e6fd62ef17e9aa48964d060d0048ff3f829. Chain 2 (Bitcoin): anchored in block 959152 (2026-07-22T19:09:28Z), 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/QZK6F2443619.