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 0xf9b1747954c26a12b1c4a57eb1672b1047c3e9cc91aa980afb70cbbb79c26f4c. 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/84aa9525-279a-483a-906e-f43cfac81f17.json and https://artists.proofprofile.net/proofs/artist/84aa9525-279a-483a-906e-f43cfac81f17.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 0x192ce583487c97a00c132513a55f606f2ec92acbe2e81c839539cd71371f0758. 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/QM4TX2363475.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d22a20682f0721d5f1975c257d719a718530fbd892578d71206dfd8560d13f5. 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/QM4TW2350487.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d4e8d5cc580b75f9a79aa2560998096f3a7bbd7570c34687869d318763b2507. 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/QMDA62229974.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4303d04c9b50134ae110498305014189147ffc766ab4c7b92235dc26edf4068f. 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/QM6MZ2254496.
Fist by Fist (Sacralize or Strike) (feat. Matthew K. Heafy)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54649e11579deb33963d575eced32451ad6df16a912688435978e0a4ea18e5ac. 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/ATN262197617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x192ce583487c97a00c132513a55f606f2ec92acbe2e81c839539cd71371f0758. 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/QM4TX2363475.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54649e11579deb33963d575eced32451ad6df16a912688435978e0a4ea18e5ac. 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/ATN262197617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd72e52bb514363434b763b254b101bbc7ae7e26b4b1b997cce52cb3cb86576e9. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-16T13:48:57Z), 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/TCAEM1908828.
Stabbing In The Dark (Acoustic feat. Matt Heafy)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x435b5cddefe98e84a8d143b58a8bce8263c2fa592f15133363bc26e811d8661b. 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/US5261923358.
Stabbing In The Dark - Acoustic Feat. Matt Heafy
Stabbing In The Dark (Acoustic Feat. Matt Heafy)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd72e52bb514363434b763b254b101bbc7ae7e26b4b1b997cce52cb3cb86576e9. 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/TCAEM1908828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x192ce583487c97a00c132513a55f606f2ec92acbe2e81c839539cd71371f0758. 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/QM4TX2363475.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6224c4cccb0a6559b47844f511fc847003d12220d01be8b3e2fc4404f93e99e1. 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/QM4TX2489300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1367c8fcea49eb9cfda5890e727fe4c5aa6cc1610a16d2ff90418d23501518b0. 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/QZPJ32236149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1bc9f331f07165c21758c054edce7dd68866c29c6bd2f21bc09388ed287f55d. 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/DED831500635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6574a066c97e6f968f636f3a329945d7332028e51c9086a5bd89bb0be4d3bcb4. 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/UKUVV2200004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa714f423416b3fc70f61e0700f985bf7a0fd93c7d8f19a121bb35214137fddc2. 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/NLA322000452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d6875f4d73013246a6d542ed3701a6414a18f6629dd19ee0395a5decfea04ed. 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/NLA322000453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x270edc706c6a209babfe68bc3b9fad6629778a44072dc6c6fd01434f0751f6b7. 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/NLA322000454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c3ed7129017a92c6730837df7191d08cf86ec3e652ff3582a6cedcb734a772c. 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/NLA322000455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a6bc882892af175d01ce9782812225c977b99e5263379b90ae52e6b5f48ed83. 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/NLA322000456.