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 0xb965482515bfed400ef9c912c11c9b609b462c8f4f68f687992fb927c80fe0c2. 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/0de14e9d-a874-4318-9b1f-b5028d82cb78.json and https://artists.proofprofile.net/proofs/artist/0de14e9d-a874-4318-9b1f-b5028d82cb78.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 0x52aad779b948a43c942d845a2cd112480020f70924cbbbb16b656a011dd613bf. Chain 2 (Bitcoin): anchored in block 956578 (2026-07-04T02:23:20Z), 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/USA560813614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8649ac9930b88219b03ceb1e5a8227e0412dceb73341869bd55dd2437cab03c2. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/USA560813615.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f08b0040bd15cbc503a80bc76540505b89b0f19b729147d83a9a2cb88b43816. Chain 2 (Bitcoin): anchored in block 958130 (2026-07-15T08:37:45Z), 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/USA560813616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38d9cdf44875f079bc132c5cf00ecc26f31d9c9ff488e9e6e8f0e39bfc5386fc. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/USA560813617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bb83439f5d80f1cfbbf957b693d3b081134cc98da50cb6508d67fb3bd023f95. Chain 2 (Bitcoin): anchored in block 959051 (2026-07-21T19:48:03Z), 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/USA560813620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17fea70fae67867d4fd9510231c4e0ed421a077e5c483f8504de95e463eed1cf. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T10:57:35Z), 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/USA560813624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27aa7c0896fbfc7d8ab5ef186676cad822f9cdc49c680feb6765b78689a32b9f. 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/FRY680109030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8cefb13d57e740c0833e9cd410dc49442e25ea4f440c48ce92b7b97e313a892. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), 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/PLC071001007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb305d23db846cd6aefa12121166df5d913db92d2150d50fef13669f6b18c330b. 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/PLA461600019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb977392f612a5814401c05f9eed9040264bd7334edd58bc73ca7dff085b596cf. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/PLA461600026.
Bolo by Night (feat. Lil' Dap, Tek Money) - Newkingz Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19b9c15e430c75cea7726b5803ef93ee9baff22948e4212a7e3eac2d7d6d24d2. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/TCADJ1730606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x772881d431cdc828c0eb798fc0f14827cebf8cf56e17e512abb078cc94dc3751. 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/USCH39200028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85671a22272d5a92fe40c79cfaa4ef6a36267427995f8bd5a2589106f758f859. 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/USCH39400026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85671a22272d5a92fe40c79cfaa4ef6a36267427995f8bd5a2589106f758f859. 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/USCH39400026.