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 0xef1f6ba14a9452e26b1a1c0a474614578ea4b42ad7521e627198d6e284f707d7. 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/4f7b9fdc-095e-4e6b-8412-57927a534b6b.json and https://artists.proofprofile.net/proofs/artist/4f7b9fdc-095e-4e6b-8412-57927a534b6b.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 0x2491347de42c72a25c19912194e4b046084345af478131e3e6ba8b4f64b58487. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/USWB10604372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb9f470cd4d95c3737332157e6cccb772fe82cd65a24ce2dddf6996d3da82384. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/USWB10604373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc51564b4a705900a3d3b726d4f5fd9559256e20d712bbcd573df02604faf8d8a. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/USWB10604374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a4b1a72628eb20e1130323b630c18482dfc602f9d5e2cf12300f4bda56333e1. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/USWB17600017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10e0e73d7213af35c40306a3f8b085db41be2429a7a958639af5a3c881699c7e. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T23:48:57Z), 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/USWB10604376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4336f68c62bce89a43d733dddb5540c978c2cc710d7326db9890c40e152b36e. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/USWB17700012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0c7f1653e31f52a56dfa41f5b2db75d83e9c5fdce39abccc6f24ed118d997a8. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/USWB17700011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5640376ac5a6b24df7d97e3f304deb29526773dc183aece622045995e3a6a12e. Chain 2 (Bitcoin): anchored in block 958572 (2026-07-18T15:47:37Z), 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/USWB17700009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa168d5f4e13a2f5ffb4ad6dc25cee3991f7f6bdb4cb1dd099f74fa3fd0bae4d1. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/USWB10403639.
Sometimes Bubba Gets Down - Studio Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c74f1dc52b319c29847d80745a289d8bbb1b1b6f083bb29bf4082fee2201cf1. 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/USWB10501439.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3173ced2ef85742881bf68ae166f3048055bee92c37af21e3022b028eb35251. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/USWB10500893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d0b8c626f8cf540133456fdb13032bc694d686f9f43addf93e16a022f67e856. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/USWB10605089.
Signed, Sealed, Delivered I'm Yours - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd714746e21bbf045a8b9c93b84040528cb5adfb7a5fc8dbe7690ca0293dc3e19. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/GBCBR0800002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ed14bf06402efed4389f50134e3c6a4cbd06353590e6b7cc2c77ea52a60192a. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/GBCBR0800004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb262f3efd2033d88408001d77dc23bcff32472c27a4bb22ae5794d0eb971a83. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/GBCBR0800005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f4fdfa7d9544205eb8bfcbeb3358c100c60a69de2a3a8ec2e1d9134a50d7b1f. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/CH4217600012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabee424cc15c35687940ed13b7cd9d3650e49251516a45bf744d78ac41b9f1c0. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/CH4217600013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb688abe85f0b1ce2a5196bc8a3b858179825547b46ea5e2a25c43a2caca2292. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:38:47Z), 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/CH4217600014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x521eb0ffca6d2400b2e1c57a03a61dee564b775a869ed80fdf4b95c0b922b422. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/CH4217600015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8787f1d8f7147ade25d0e2e515b1941b941b6fdc3f6a0f3b63eaf2a7966390b8. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/CH4217600016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6cd931d8429968dc8599df3b9dc2e28f80825bc0c14f0d921ecf6d9d88bacb7. 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/QZHN82178466.