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 0x13687140098e5ea1e131cf86974f37356e1e116496bef1466b5907bfd8b85961. Chain 2 (Bitcoin): anchored in block 953674 (2026-06-14T19:07:16Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5f8bc80c-6dce-4ea8-9f97-6d8ce0746702.json and https://artists.proofprofile.net/proofs/artist/5f8bc80c-6dce-4ea8-9f97-6d8ce0746702.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 0x1904a516a730d9c364073254919c99a752883b07eb8e1c3dfea082207cb2a991. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T20:20:36Z), 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/QZGWX2073935.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31013830bc76c25d7de3988b35db67c3f9f6ba62256019e3be0e5b5eb65e721b. 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/QZPJ32130199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7b277476ba7d3f148bd438c9c867075e74c1ef434c525b5636648828374d7c1. 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/QZPJ32130200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaa1f7efc216404829aa9b9f6ff108bfbc48d1e19b732f04a22dca68080b8c26. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/QZPJ32130203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb40489b13056c287529337e423f9db91427112bd2a7504f950f3bdbdf2e6275. 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/QZPJ32130204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0a31771a9331a49252dd3c21f674a559b9677b8a71f6fde477373eec70d6d7e. 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/QZPJ32130205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc44eceaa392f78c117873ee896c1764b4281e7f6c89d910f0a750de3c5d78633. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/QZPJ32130206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x934f57c27e8702b3aec377926599238fcf7e2628e4fc7e6aab040016e80f4a9f. 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/QZPJ32130209.
B E A C H S H A D E (Zackery Wilson Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d3d68528f219793f912980bd53aa92c463105589d331d2f103dbcfec7ca895f. 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/QZPJ32130210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9f6ecaa721b99c9123bad04c58bd81fa0598e1a41aaf08bb3de51cc9ba77b21. 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/QZPJ32130211.
Artificial Intelligence Bomb (Zackery Wilson Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0638b4950b238eec449c53ba648e90535b2850a627a4e38b2e9d68550c9475b1. 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/QZPJ32130213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3faf2cb656d7cea64e77dfe413d395f8047bb6226c5709158aaa9cc4b1c5da9. 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/QZPJ32130215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89bf25370ac4513723f1f26392f6e2fd71b8d52f82e41393715c7637eef10dbb. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/QZPJ32130197.
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 0x594c31dd512ae8afdb88c2a32a8e8f65b9dbf62f725e6f5f4a805e2e5a771a18. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/QZPJ32130198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dc4411655fa7ce5fcb18ffce357b1c16561f4d698c6988574062b40eb0d4ac0. Chain 2 (Bitcoin): anchored in block 960376 (2026-07-31T09:09:19Z), 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/QZPJ32130201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89aa29d74a94e91abbe781b4a3705de621839bc03c2894b521d6aab5a8e56f18. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/QZPJ32130207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f7bc665e0c10de84a91b41005cb4e43457d252f6374087262f9fb1eb4493c59. Chain 2 (Bitcoin): anchored in block 960419 (2026-07-31T15:20:33Z), 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/QZPJ32130208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87a443256b211f00a726ff4db1cbfc0877b42da11324dd2f672b682fc7b7b7f6. 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/QZPJ32130212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc13ab46b43238fbea7436bf20a4f0a996ae76f4050a61844b371f90d98126ae. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/QZPJ32130214.