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 0xba54edeab49425b721691995caae9110e9d82c8ae4509e4dc263f8abacba3d4b. Chain 2 (Bitcoin): anchored in block 953592 (2026-06-14T05:36:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0427c491-43d3-4991-b32b-2f2738aff06b.json and https://artists.proofprofile.net/proofs/artist/0427c491-43d3-4991-b32b-2f2738aff06b.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 0x69ea8b20484d26bedcf0af311e5d813b8514e9da9e85fb0a2320761406f89115. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZPJ32363610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58bd8843b7a161495077d2d70b133bf2bd85c38db7bc407eaaebbc0d444e1908. 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/QZPJ32227369.
Jenny of Oldstones (From "Game of Thrones")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x526d5d796543a27ef011080ba26e333ca98318750ff92da47c4a967e30014da5. 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/QZPJ32339595.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb2f1dbb205e3607b151689563c1bd78ed46073635c454c137f38600a5b2aafa. 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/AUGBT2425505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe25874c36aa9cce124ba719d6ac4a3bc5da0dd14c8fa595151c127e00a8d281e. 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/AUGBT2411494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41178de0d50aaacfb01396b89c2c2a4ebb8eb666f889cb0654ac05eafeba390f. 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/QZPJ32367285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95b25f50780ef528ca2b36eec82f2ae3f03f191dc89aa0d40075a10808eb0664. 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/QZPJ32365059.
Light of the Seven (From "Game of Thrones")
The Rains of Castamere (From "Game of Thrones") [Meditation version]
The Rains of Castamere (From "Game of Thrones") - Meditation version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72f2d8f9504013b76d0e3d068702708b127ce3f66e0adee9ad57af101e0edd4b. 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/QZPJ32366292.
The Rains of Castamere (From "Game of Thrones")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0d49fdff0960527edbbda9d0317dfbd779f83ef1dda3718a78e6725d45606f8. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/QZPJ32322835.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0593ec102aab85d2ce32a594775b01d7d1ba657f532313a9136d4588a9b6fe7d. 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/QZPJ32234174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58bd8843b7a161495077d2d70b133bf2bd85c38db7bc407eaaebbc0d444e1908. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QZPJ32227369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa949860bed4018b9c7ae046914caa000966b646cacdabc6303974f7abac0a0a2. 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/QZPJ32334445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff85fd1430b4d2dc58b05cca36a89fc8a2d5ed8c254763953bd5c34d6298c452. Chain 2 (Bitcoin): anchored in block 957032 (2026-07-07T11:43:09Z), 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/QZPJ32347864.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf66e9e10acc2124071a757fff8a94c60607e1f0cd9678f5d2c24b6c1bf51f58b. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QZPJ32345456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12f24ed06d85aa4811cc46e44ecd182ff4f3acb1c784841ac2c2b08e9768e92e. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/QZPJ32356688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaaf397b136f2b7b22dda54706d720837b81d09c96e3dcfa788081fb345472feb. 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/QZPJ32344616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75a5477ebd51cbf96015287a3311117b1d972d1dd0e33fce8a1d582916f65308. 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/QZPJ32334394.