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 0xe8ccf01178167de59e29ab13c69810f3ff8441c5cb3beed15d59def3e59fb612. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8de663ca-9d63-4c4d-b214-f516ad636a48.json and https://artists.proofprofile.net/proofs/artist/8de663ca-9d63-4c4d-b214-f516ad636a48.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Lion: Lyrical Sketches of the Coming Christ
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 0xc5f98aa967dbc8e563e6a7749c42139def88da353d0046a09592c6fce14cedc7. 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/GB9TP1200319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf603f2f5052deae9f616899929d4c9cfc3bf4af4986d3898b8f3d827c9d7e040. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/AU9O31200038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64fad4808e4487a124fd93eadf666596888fb7b21d32db4c767335c74625bffd. 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/AU9O31200039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c435e7368215b71722590a9ded47db2f9a76be90ae0b41b973099025c50ef01. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/AU9O31200041.
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 0xabe0fb421c8ea099a31317cf5a53aa56f714b90cd2115e836bd3eddf47a66942. 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/AUVAE1500013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x589bc2bc6f6557c1fa636e0024a56a1389de83ffe06ba665d90ef37cb0ae3ed9. 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/AUVAE1500014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcb642e8a389adc5b42fd17f5ec5981383c59baa07ef9df363c63947594100ca. 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/AUUM71301935.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x001d31f560bc7fd4a57f77d554451637d62730f0e42f494fcea111f554406cc4. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/AUUM71400194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98343c384806d0c4f1d7e0a110d2ddb72d43c9cf0ddf053216eaff9520b301d9. 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/AU9O31200006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09fe1f17925d46a29ba7aebbc55efab42ac99b98c33a0c0acde25af94a4cc316. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/AU9O31200011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdf7c99fce82bb25e9cb086cb8d4d2f0df9f7777ac70d147393b7bc04f1cb3a4. 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/AU4P11300011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd362e27fa96ea36577cfcd1029743d30789639ecdc2e61647c14be4607c2e73. 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/USA2P1482845.
Bass Drum Dealer (B.D.D) - AC Slater's NBD Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1934968b533f3520fa01cd356f59b47444db48777e4709406b6ec9f920e231b7. 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/USQY51482846.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5b060d0d13e9bef7803565708a8df5e2bd531911205211e398159ca975c0da5. 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/AUGB20800266.
All That She Wants, Pt. 2 (feat. SYF & Fritz Helder)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfee53e1b14e5627f1b77bd281a039e344cd63805f15f758f14e1104e5596247f. 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/AUUM71400890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda13c7d5732ee47f3618be6cd2724a5fbf8c9ce4e1986ff5ab2b2790bcf8c3d7. 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/QZES52252942.