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 0x398ba80324607bc14ac12b9a888bd4466d210c222f66bf843274afb7b4a4c88f. Chain 2 (Bitcoin): anchored in block 953625 (2026-06-14T11:37:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/29db078a-027f-4777-a772-c05cb4f802c6.json and https://artists.proofprofile.net/proofs/artist/29db078a-027f-4777-a772-c05cb4f802c6.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 0x59b2faa9663416e245dbd1673ce90697138a40bdd28ee566eb9328c0919ad01d. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/FRX762212510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c811e09b33a648b0ce64c8d74762320388c321b28928d309f6e1aa3ca6f5b9f. Chain 2 (Bitcoin): anchored in block 957638 (2026-07-12T01:56:41Z), 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/FRX762212511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x114adf3fb7ee0896e75596a246be2b864743ae01da59c478b7e25bed1fde202c. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:35:40Z), 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/DGA062468745.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f219b75350c33ea6e87b0cb7c127a15677c80c8675262cb62ef86df2056805b. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:31:11Z), 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/DGA062468746.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54eef7aa48725d61cd2b193b71450737b32e936a7c0400cee36ae6b182025775. Chain 2 (Bitcoin): anchored in block 958882 (2026-07-20T15:37:40Z), 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/DGA062468747.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1cc503e4510457f8a8320419cc6507982cc909902f5f46ba5b24ad0e9d27b04. 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/UKR6V2272282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x756d4a3b6e241face1236554e2b98ed2cf024c1ac8eb01210cf3f492b7c7dc35. 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/GBKQU2318318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x176468d0a25011873edc19b7eda87104930ffb9abfc3f72d35099a30ac9a3537. 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/QM42K2492311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a33c533fff4191e360087612b01828f77aaca534d5d57cd99d0306cbb7328d1. 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/GBKQU2418371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03dec90c8366dc7e788eb084985038411f7085c907cae5cc83718c1d43a53094. 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/GBLV62123143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x227447207443e6a868f78385a7b054d59d1b25db0a19d61e74c518af8d5d257d. Chain 2 (Bitcoin): anchored in block 957039 (2026-07-07T12:58:18Z), 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/DEH742423650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa43f0613cd53904ede659e48feb5c6151c4ab64310c1a48572b4004b77403120. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/UKR6V2077407.
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
Woo Let The Dogs Out 3 ( Compiled by Rustlerfari )
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e0a3cc02fac0b4e2fd35ad83ba7d3a8bd07cd88a6eb4523ebc21d1212f7b4b6. Chain 2 (Bitcoin): anchored in block 960155 (2026-07-29T22:13:32Z), 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/GBKQU2242776.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e91b740b79919453ad8f5ec752b668882d0a607e4525f2761e3d705bd439560. 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/QM42K2236451.
Lunatic Paradise - Compiled by Sid Robins & Space Wizard
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x191476becd81319d070ced91b30b72549df18688a2b8cc944b818b9a14a1d46e. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/DGA082347895.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0969197c81a64f4e5b1e6d42703ad5ba8e03fc2994a85afd5b2e0f5709dc5772. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/DGA072315124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaa10c7afb3c5ad4c3c1345dffef2a7b33c17059352abc774f0a65c58af79141. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/UKU932460106.