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 0xb7943e69eb27593640e718b3c95406753aff3595d818b19e5e348836edef592a. Chain 2 (Bitcoin): anchored in block 953770 (2026-06-15T09:50:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/93fecf29-b4e2-41eb-a082-42abf9d964aa.json and https://artists.proofprofile.net/proofs/artist/93fecf29-b4e2-41eb-a082-42abf9d964aa.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 0x5bc3245db4dc6ca1c4dfbfb5fb1ff0a54a28deada03753181272d4aa8a757d2b. Chain 2 (Bitcoin): anchored in block 958567 (2026-07-18T15:22:40Z), 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/QZHN92229012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffd19675c2406f38c7c58ba1a20d9ce77af83f9be73807d130fba5c8f372b83e. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T16:20:17Z), 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/QZK6M2219632.
What kind of love are you up for tonight?
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67afd3bb40a251387f4fa96708cad1a93f2e0c87116a8a7e634f45f20a9b9298. Chain 2 (Bitcoin): anchored in block 958822 (2026-07-20T07:21:23Z), 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/QZMER2244750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb56d2a84baf95ffdfb5249de02a38ce6acb9c854c22c125974fecc4bc6325e4f. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QZNWV2294759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb46eb83fde07522213d75d3c3eea7f6a4da1d5d1be2e05baa6e4fa77d2c64b4b. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T17:53:56Z), 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/QZRP42264598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa449f125f86b2b25425e92da9e98911d52d9e68e11ea753483b0736f54cc9de2. Chain 2 (Bitcoin): anchored in block 958987 (2026-07-21T10:54:15Z), 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/QZFZ62312965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14c36ed1cd80e59b472e561308014ecd41164e1baaeeea9a0ff4e6ebec5899e5. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/QZES62323480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51fdefd9815b7f2a3d0c0f50fb289bf17b16eba5b364fc8f2b21fcd968c9de02. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QZK6P2341252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf13ce83ee5605c14c72786f94244a7f36597e065e7fad3e3bf7054a47495ddbc. Chain 2 (Bitcoin): anchored in block 958568 (2026-07-18T15:23:47Z), 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/QZWFS2478068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1df119c8f63b0fe38b1c9d05f901eada0070b0bcda67792b9bdd002764227632. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T16:16:18Z), 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/QZWFT2455059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbc852f01f5f05596aea5552fd943ea111f11285e20ae8a653b5cb47f6ddcaa5. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/QT3F22464368.