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 0xda504e2d7ea11b995134850d5b1139f161a29ae0de4feb46e3bce2523aa13635. 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/625a5219-33af-488b-95d2-a6582a2b316e.json and https://artists.proofprofile.net/proofs/artist/625a5219-33af-488b-95d2-a6582a2b316e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
One Step From Eden (Original Game Soundtrack)
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 0xc533e84a50d87b24cccc3b6a5adb89ef970465228fa7a43affa23611bf641b45. Chain 2 (Bitcoin): anchored in block 957745 (2026-07-12T19:20:20Z), 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/SE5752075926.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69166d1c7ca7bc2056b48699df5406b3b7289687fa0c0a19b2caea2646f3bbaa. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T03:56:58Z), 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/SE5752075951.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b044b71e16771419c1c82f35d6878ba86af78c96fc85a29fbda0614b9d22c34. Chain 2 (Bitcoin): anchored in block 957744 (2026-07-12T19:15:44Z), 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/SE5752075927.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb953c106099b95648753e46fcda3d535ffec173cbd162ce8d178f3d5458530a4. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/SE5752075929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x342e75c7a8716564aebf5f1aef742d4ede82da5111f20c504d7a462606f50d06. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-17T00:11:15Z), 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/SE5752075930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9652f8ca37999ff0eb0ffd9aa5f5b24d649373cf557808bb7c2af9ce8e400d5. 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/SE5752075931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec7aa609979a2148e29cb38f66f3a0c7ddf2f1d0c3daa5cff1549420a471ad82. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/SE5752075932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e8aed1a0d3c3f6a1992e7dfb49e8302769ee4a55736b6e14e3d41b89b0bba34. 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/SE5752075957.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84e2eafeb1bcfc5c5df96ea9176c36851464068207454deff12008853df43e13. 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/SE5752075934.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec32f2faa4afe9ed74aef65ba34095598cf6a92e0427030e2e932b96ad34f76b. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-17T00:10:09Z), 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/SE5752075958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d0eaa84616d35f817d8dd9411b94babf57a5e1f4c8b4d5559a8b5259ccc3d72. 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/SE5752075960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe21ce6ecd8dcb3f762a348fd616e56b1028a23686d1b8b900f3a21d7aa160329. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:27:52Z), 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/SE5752075938.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb606e73239abdf6907b1f5a81d961ba483626508dec986a7d113efabe9bc8c3. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-17T03:48:38Z), 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/SE5752075939.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde81e1c696589091b944674e64e5f4b94be8bc45f57d8d0300d9335bba09c5c5. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/SE5752075942.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ebcf5073380db264a8c6db03b61b120601e8f0dc6d5954c81e38e460fa1c23c. 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/SE5752075943.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee2d740aca7a1253fb8245c0001abb0b8fe01ad6221b0f8cd36e995023dc9247. Chain 2 (Bitcoin): anchored in block 958346 (2026-07-17T04:01:28Z), 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/SE5752075949.