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 0xbb510cf60d5fd32a69640a45e61df5a00021c143645d395ee421fe5d9242e4aa. Chain 2 (Bitcoin): anchored in block 953817 (2026-06-15T18:10:31Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fac944bc-995e-4460-bb1f-959d3afb83b7.json and https://artists.proofprofile.net/proofs/artist/fac944bc-995e-4460-bb1f-959d3afb83b7.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 0xd515bd855ccc21fd17d714a8720ed1d0761d6f0f0d81a56c50c8fac89edb27db. 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/GBKQU2315802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76ab34f804ee57f87f5511fa220b4072d42df78e2e64fbe66ff134686ec9c582. 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/GBLV62301999.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb121c914d4a451081588815ba5bfc2adbc54e1949bc828a44d355de53997cbfb. Chain 2 (Bitcoin): anchored in block 958832 (2026-07-20T08:07:43Z), 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/DEH742420078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b74dce1f2e6c9bbf67e6f250480e49ebd342f28b6d7c91a9c9d4d48dab5bc1f. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T09:16:54Z), 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/BCZZU2400080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0646b3259034a9f401850c47cd8ade47f9d7e02d8876604d866605670d007845. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/GBKQU2503948.
Android (Mario Eighta ReVision - Short Version)
Android - Mario Eighta ReVision - Short Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2c5a4395728feca3f8cc0c3ec57bc521f9bd4d25dcdef947c19af6c7dd53169. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T22:02:22Z), 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/US83Z2538874.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa75fc9410221d971608ed22d915d3ffe38dae97b8a3e7ca611828c403122f88c. 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/US83Z2538871.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26bb4f04d7514cfc410099089092dd84aceb856a9dbfdad252d4adf2584654f4. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/GBKQU2583222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9f1767fc4cba8f867367b5b31955f04cb663dd58e2c6d52a9eb831e12babc8e. 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/CH6542304687.
Empires of Mind - Khainz Remix - Short Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x443b64a9c936c0333b2dc0280e063e5580a89de99bce5298b1b16e20d1d161c2. 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/US83Z2489428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x749d01c100f215d77129e8375c75d19ea7a17d8b96c0ddc029bea8cfb8361548. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/US83Z2212236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e77f716e66b046db527ff99096b50dfd94298567d8a569a3957af0dddd2b248. 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/US83Z1783179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdea02987bf4ef138521ab75c7e73d1025f5b8a7994d61f916833c39203705b28. 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/GBKQU2055603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbd964f44c1b3ddb076f5946ec3dad350caa0d6ad8331a6cff1d88cb6e4e8177. 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/AR2642100118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0646b3259034a9f401850c47cd8ade47f9d7e02d8876604d866605670d007845. 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/GBKQU2503948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd722d8556925e4db2e51646f047dcbbcf55b9a0846aeb7ec387b1bdd9e87f6a. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/BXBK62400110.
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2c103a0d57a8369dbe3b851598af4c726ec3275d4fb7d9eb01b9fbf2254eabd. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/US83Z2489426.