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 0xf906968785cf957d54318820a32e80251e6a305eefa66f05c392b92a613b6219. 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/e00f8c55-fc34-4489-93ef-af41465df0b9.json and https://artists.proofprofile.net/proofs/artist/e00f8c55-fc34-4489-93ef-af41465df0b9.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 0x740939af7fe49d8ab3f580035006a4f958c0eeaec6bd6086ac06c7b9e92c81f0. 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/DGA052558890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6c4b53f667c67bf344cdeeb9ba1d1301c70c337d01d3573d24b7bcdf66ff2fd. 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/QM3DF2252504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f8e0d57280406ad061d34fc81d2696c451fd14a259b1ab0247d7b9c7a427298. 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/QM3DF2252506.
Say Yes To Heaven x Shootout (Slowed + Reverb)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f741593f4f0f65ea1aa4c518b0765b89953f59d941c44587bae652d1fb6980e. 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/QM3DF2252507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c545fa2a18995891b504ef7ce4bb88d3996743c11ae37ead97216be282c1b79. 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/QM3DF2243810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5401b1ead981189a55e60365d5d3355e4643d447f157caff346c126bc1dafced. 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/QM3DF2243809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbafe762fd8c63cb942954a7513862c0510e77af7d5e5845e70070aedc96d2a63. 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/DGA092228686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbafe762fd8c63cb942954a7513862c0510e77af7d5e5845e70070aedc96d2a63. 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/DGA092228686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76c86fe06a2d2f4955df55b619342d0c8e0898de5537496d41cf63fc336b5de3. 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/US3DF2272381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x282549f5335fb61c80a97f3aa0d8ef6d9ce7930f98fb7d92f00fb91e6bf0d17e. 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/US3DF2266954.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d44d7e4a984e3b37133defde29ecacc6770df2a826aa4a872ce098d3d1a36fe. 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/US3DF2266908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd024dc188e938dfb0b49a1528cd4d769cf0f2fa257a6f520eb46396eaaeb1f08. 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/US3DF2266823.
В сердце бахнули стрелы - Izzamuzzic Remix
В сердце бахнули стрелы (Izzamuzzic Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd872900a02a31d2786d5d31e67a8fbfbf8e80ddd81e667b6afacb295c900a69. 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/DGA0T2415053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfae84f87367ca20195c08d96b4cd8a8e640341c753fd96ea3862110ac96e280. 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/US3DF2556927.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92f546a9eea76dc4329cca7d488de076b998dd467a91599692e38fd815a01693. 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/US3DF2421031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92f546a9eea76dc4329cca7d488de076b998dd467a91599692e38fd815a01693. 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/US3DF2421031.