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 0x42a401c7075ed01258c2f0cbd3cdb5e6f8b38527bfb68f3b3b39ef96cc496cb1. 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/e70af6ca-f000-45dd-812b-039f748efcdd.json and https://artists.proofprofile.net/proofs/artist/e70af6ca-f000-45dd-812b-039f748efcdd.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 0x92105cc5391d350ba0b1fa0fa82192d6eb8d80f74fd6e1243d4c153a5a0cef1e. 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/FR2X42262039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7ecb8769c3f09d88d805e15c3158950741d22a3daffc29955203e2605c3338c. 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/BCBOY2400008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74670f02f0a5ef8a5c85f2d2a4d4702023178c0aa788f5a6c7b4c5d3162192cf. 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/FRX202467218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95ae242280e342cf28924e360c927c188f7429126b4ba6927d1a9a7c86000b77. 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/FR2X42459152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc281edc8ccacf95247c2ebfda86e6334f7765a7685d17d85ffb3087004819e28. 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/ARCZH2300002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29fb17e7ae6564e04899800e47c177d814bec9b9acbea98bf3522a4734a1d6b5. 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/DGA062273154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2ec0205afedc2e322cf16d56684d5088ea5989f071908a23904a90faf45eb0a. 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/FRX872206214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x233680b3436b5a47db4d204c2d45dc8ec914b6e4e99e148c2a03f12403723c9a. 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/FR96X2260905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c08a03b51d1c07f9ab426aeb94d5aeb935cb8530d98bd1e4cd9f562a2c8cebc. 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/TCADX1834698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb9152e7345f37832543f1fe0f18a890cf1989d99a1b6d62f5fe6f6b33a734d2. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/FRX762162700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3977fe6af8e4002257a9355bcb553dc7c5f7855ce58060942644042a4a4eadb. 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/BXVKG2100005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf26684f7c2288fca86720622136038e1732c1f0f83e71a7d39791d8c32325117. 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/FR96X2118624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f3b6003c515dc178475c81154c36c92b8b4dbf406304b0a989790917d1c1936. 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/DGA072105874.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd336ddc6cb19f184008a533424020073ee443727763e059091d48391ded1a9f7. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/FRS182000787.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x944a11a667bac6200ae66a3f7dd41bcd27d72d43e81a2be375d423dcafa88af4. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/FRX202054849.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0911f19f580caba676bc72d89425d210ce2b881c8e1f2dac066564415b7ac006. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/FRX202014192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80729992e1207523320299a6be87279d23498b2d7dc6c922943851840aadbf3a. 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/QZ93L2008414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb68da38e4ba0bd830fa16cf63231fadf24437a8e7a37a8ba54dcc595170705f. 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/GBSMU7547589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e0fc2027ff4d644c502f2d5f590c5592c142bb422bb43502571ed9f782bd50d. 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/BKN7R2400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1abc21a90b75d7b55f4e9ace6e571c425f873d5eaa128bc491c83a46139042f. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/ARCZH2300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc281edc8ccacf95247c2ebfda86e6334f7765a7685d17d85ffb3087004819e28. 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/ARCZH2300002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04202ce87b397ad4e5584e88389d1278bc4c78297f90614d5e3c0bfe5f49ec05. 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/ARCZH2300006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x116875f765ff5218b1d1452d45e50725121fec892920680a59e2513b306a5819. 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/ARCZH2300009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe28268a7c90ef084e5976d4ae2376b84369b01784ac9f259ea949ca7f8a2b354. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/ARCZH2300004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0cdfa0c0ad42729449a3700f821204d56e8287111b20a0ce8c62a43466c222a. 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/ARCZH2300014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe27d3c0276eef6f369f522f449be6fb57c4defa0ac3152cc64fff40f8ee4c136. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T14:47:04Z), 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/ARCZH2300012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb56b37b6b53c30d1469c7e348c89cb1c7dcca8cbd6c950cc51eae3bee07ddda4. 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/ARCZH2300015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2decb2dd5b89fa2077a92ce771045117da1d78eea045546966258cd5782f0a66. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/ARCZH2300017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa664c8c2a53236e142fb7d516642230fb1799f192b0654f00fd599772c7699f2. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/ARCZH2300018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb938ed90d5dd9f2b251d5dad7cbf777398b5e69ba204be9d3e3d69adec94b354. 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/ARCZH2300019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x514091b299063434eaa7517471d17f916d2677d42f4dc40c81f7c0e1ab6d189e. 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/BX4HR2200003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96c650f6d802abb4e6c02ed71a0ae4655793f2898c2bd95d1bd1fd37d6b53128. Chain 2 (Bitcoin): anchored in block 957064 (2026-07-07T16:43:08Z), 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/BX4HR2200005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6c8cc096603aeb7ddbf149a8a1776fb4ad994f1f6254f259aa281b5876c01de. 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/BX4HR2200015.
Bathroom Stalls & Parking Lots (Original Motion Picture Soundtrack)