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 0xd8d07a7f030159cf9610b7a499c4606fc83ddaf6a1ae9d44415976762998c2d3. 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/e2b5461e-c654-48d7-8188-76897ecaa6a4.json and https://artists.proofprofile.net/proofs/artist/e2b5461e-c654-48d7-8188-76897ecaa6a4.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 0x53564ac6d7acb301fc401497f847cca0afd2ddab66f3cc4026d7a55e6389a9ee. 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/QZK6N2312536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8faace39f26782662356ba26ef61f0b0138a628ab4afbba66dd68bbaa867575d. 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/USLD91749316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8974064baa7a24d2ff270b4049635a1c8c5613cf12e8f909fca365803a068c60. 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/QZTB72287048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x923d4cd4364d86830ffea44453cc71fcb4a2c6c09afd3f9a61cdff2b9535afa2. 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/QZNMT2282606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54c7bd0223845396a2b2d27cf3c53a6ae36d5afc8842092f2b065ecf761d4a40. 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/QZNMV2241186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba855bbf04bcb172d2fa0b2373ea4d6fdc7ec051406eb9c43c8c72eec43484c8. 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/QZJ842004067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba855bbf04bcb172d2fa0b2373ea4d6fdc7ec051406eb9c43c8c72eec43484c8. 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/QZJ842004067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2995c816c282fadaec642c882fb884175a559df4f1b7f23c764fa3a61b4517d5. 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/QZNWX2299882.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ff08ea20208f24e6fdb6e0c48b0cb408d36f5fb59f2b670234102f472486bcd. 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/QZNWX2299887.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ab4deea4cbe5b9bba8ddf966961d187d39b44ae161d382ab892206adb5a4982. 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/QZMER2206268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c55e3717664c5a730cc9c3165ae1b9d5bb690d7fcc260dc9811cfb98e62a4c6. 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/QZFZ32303949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1158df4466532ae9752809cedfd079bf5c9bf3b3d68b8baf6635a8d5aefca28a. 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/QZFZ32303960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb8809e1054fc27a5b0df959dfe68230fd37902421fd32bb4b4f5223203bcf73. Chain 2 (Bitcoin): anchored in block 959155 (2026-07-22T16:43:41Z), 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/QZS7J2217455.
EVERYBODY (feat. 310babii, OHGEESY, BlueBucksClan, John Mackk, G Perico, RJMrLA, Rucci, Heembeezy, CUZZOS, Wallie the Sensei, Chef Boy) - Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a27d0760876245a39fba63b6ecee80224d510b669fe2d885f83ba6a644b8f05. 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/QMJMT2405578.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x273fb7b4cff7dd989220703b73d34b666ee93b36e7e04a116827390434cdc14f. 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/QZMER2380558.