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 0xf725ed7cc2d560b34b90a04818c447d355e12bcf8de3541a6e69c91b522bac26. 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/b34e7ddc-5766-47d9-bcd9-8b0e341aabc0.json and https://artists.proofprofile.net/proofs/artist/b34e7ddc-5766-47d9-bcd9-8b0e341aabc0.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 0x97643a11b6c766327b70711fa0ed8e72739f814428db08a3379591bcaa75f2e1. 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/USUS12300260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cad10644560caa3569593819226aaae09a3216365c7ee7b96dfb2cdbe4b707e. 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/QM4TW2333030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdff43fdc4f5ba14718f437c8084204a3597d7fb67280d30550e176ae9a90ba08. 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/BCCNG2100135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf19f0061bd18db6a473ec4f3a44fa16f13e491a616850153af32a8050c1eb5f. 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/USUS11900439.
Just The Kinda Feeling - Nicky Elisabeth Remix
Just The Kinda Feeling (Nicky Elisabeth Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b72cc879870dc8d4d97b9d4973e56e727fee08139f2cb46eb8201a7dfecd987. 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/NL8RL2332307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9691fbf34a2535b859b0e6f1c35795a3d7413e503ed3d3a0b8f1deb10033253d. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/NLBW52100098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb77f38e53749e75315b17288242baccc676c21d5a4c1dcb1e7ee4d720e9254d. 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/ITUM72201589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0965b3391f8e5f0687690e0aa28ea61848bbf78930268df5f6789d54b098c277. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/ITUM72200942.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x214d2c47ca69531db83cfb2143e87e024758a13a3429e2e92e51e6ef9b0f1415. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/NLRD52257969.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e3e47bf4ed22cb879de8170cbb1f4a23718ae64b14575765e23db594730c8c3. 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/US4HB2200628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff3c6cad750af215bc89f6fe65d49e705a6a64e53af95b6a17cfefac0163baf7. 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/AUFXV1900117.
Mona Lisa (Toneshifterz Remix) - Radio Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff3c6cad750af215bc89f6fe65d49e705a6a64e53af95b6a17cfefac0163baf7. 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/AUFXV1900117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x409657081310d3d8ded56c951a98bce9afb177791bf397b32ace7505ff6c5171. 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/QM24S1703595.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb83e561a8711e36b02a81b71efc45805b98fcf09ee89400b5b64fc30667d32e. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T10:41:45Z), 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/NLF711803170.
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 0xf6a0fd6951e51dfe32fe23b7df6693be6a5843addc0d81e6c927f0496467de53. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/USA2P2128363.
Just The Kinda Feeling - Nicky Elisabeth Extended Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdea5392f57a08c1aad5cfcec99160151005c0e0d1d2520d566eae7110734f71. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T08:10:37Z), 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/NL8RL2332177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c2b87f0136fb71436c9041fe5198acad1cb9eb70eaa367c452e95f31091abd8. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/ITUM72201590.