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 0x6aed600cf00c7a32868efd9d1e8765d892894d4238f9154c05566589eeeb3e1a. Chain 2 (Bitcoin): anchored in block 953996 (2026-06-16T20:04:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/304fd830-04fe-453a-bcfe-c67c82026e79.json and https://artists.proofprofile.net/proofs/artist/304fd830-04fe-453a-bcfe-c67c82026e79.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 0x570f45df0ab36917cd92645816811a380afa7c4b0d53ca299977fe1614d97442. 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/INI492110546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde851bcce70b6ee7b6c2a3ae8620ebdb3c77a3b17db1fdfcf02df367945a99f6. Chain 2 (Bitcoin): anchored in block 960212 (2026-07-30T05:43:45Z), 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/INI492100508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9534d17b1153ddeaf96db79da0ede3df7a0bca021e7bbbc39a82b46fd6f476a. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/DGA0R2330492.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7d5212261dacfd01464708c140f0d689770b4b2a7c95de5133a1a2272cf04e5. 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/DGA0L2344564.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92b7c45ce46e0fd199d5c6944998311274dc4e3a73946885ded450983c824cc2. 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/DGA0M2323238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfbad8d0f0215bffd2718c4e9e155b900d21aecb32bc2d79259ef3a5bd6a7141. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/INI492100341.
Manzil Believe in your Dreams (The Ectopic Beats)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e717a5e7416f21b393f9712a38c14ccf78d33fe8d7f5f55db2463290dfcbdf0. 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/DGA082262284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8684e99c7aedc8541bb682ddc0ad3378e778ca1be2dbbcd34d1c93d8ea56c29e. 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/FRX202238881.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb14d23707c7d1f278938e841e58266ba3de1791b2fddff50492a0f66c94ed4b3. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/IN1492100159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f453081f30eea5807c4e7baaad7b8945c916de93cda1dc8d84bf6e8f0224d80. 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/INT762500169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf40e6d8c3ac22e265fb458ba42e194e1e4ebcd72ddab54c45afbbd01cffb99a0. 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/FRX282183255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28adad2584fb46d1ee661d0bb0f4a20db6d7c613389f6e40f6897ce8b0f0933d. 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/FRX282183254.