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 0x9a9d3ec7c14e87b8f2e2d1ce7cf055a4b817b9d1b04075c567aeb1672ed7daae. 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/27098d5b-1ecf-4242-b3b0-377bccc7cdfb.json and https://artists.proofprofile.net/proofs/artist/27098d5b-1ecf-4242-b3b0-377bccc7cdfb.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 0x5ee3f0648c072cf719f319159ec395447baf2b1490775a050fbc3df590f7e0b2. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T18:01:14Z), 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/QZFZ42145242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48aa0b3923bf7d94d3f4405820acb2f2566a6b5fb86f8314a70310d39d7122c8. Chain 2 (Bitcoin): anchored in block 958197 (2026-07-15T23:33:19Z), 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/QZFZ52125634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38caca4fb922d1117babbcec293f8ae51abf1195cec2185f9eb3da0d2b9b04f9. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZK6J2166897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc81815e60bf44208afcf62359f8fd794acbfd4647171f5d3db1d6d567f3f32a. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/QZK6Q2261763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb623537722c5368b23818a9edb62e482034d276c31150f0c9ddf7577542fa764. 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/CBC222200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6ccef9f08298e691ddf83f96a6a35bf75db3e3aa36feb04941c55103866524b. 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/CBC222200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35a6cfa2049ec568e547eea10afcabda95c73df272b2da40736f1e6578ab6640. 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/CBC222200003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8973c92ff3bfa3ee609957258564b19eebd1169d662f3fa9bc166225621a4f66. 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/CBC222200004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc81815e60bf44208afcf62359f8fd794acbfd4647171f5d3db1d6d567f3f32a. 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/QZK6Q2261763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb623537722c5368b23818a9edb62e482034d276c31150f0c9ddf7577542fa764. 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/CBC222200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6262ccdc89010a5c54247505e53a87f74c973ad469469b7f3afcd7f16cc6480. 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/CBC222200005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0207f9b42ff99c3ef074da7342bbafbf1e43c873ad6b6425642e645fbfcf6591. 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/CBC222200006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bd9d22793aba809da2ab0ad08463d5cc0296d92b29f1907c65ddf448e67d88a. 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/CBC222200007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90870b5ec5071d3097658a1684fb8ecc0fa21b82b7a6e18aadfe6b4a10a338ad. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), 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/QZMEQ2310728.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe49d6cfecaf51a293e1fe492c2f675c91a21654b1c1b2877ead74c7c55b3a542. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/CBC222400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5eaef8b4023f257074656830387f4090d9e95069bdbd2fa6a0e7de5c771823a0. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/CBC222400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3bbe27f436df37f5417432abce12125b23535ddd254187ee467dabf311adca7. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/CBC222400005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f07223ce47e5b8458d4116b2a260205d2ab9a1ffaf09878324360def182ba31. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/CBC222400006.
Come Back To Me (feat. Kayos KF & DJ Keishawn)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5077442dcf4fa261ea63d1c9d2d2d286c483fd5ea0ddcd7084cf23a97d091262. 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/CA6E62300033.