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 0x3204a777dc336006712c00899b87a32290758b30a63ca7fb0e7e8c821b00b004. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/245b51dd-8853-47fc-aa27-ea773d003b98.json and https://artists.proofprofile.net/proofs/artist/245b51dd-8853-47fc-aa27-ea773d003b98.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Do You Feel It? II : Return of the Rager
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 0x2368e316d6396e2767a7324cba0a401860032e98e60eb7d4df5d52d6705242bf. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/QZPLS2130282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7675db499af7db4579311a96acc683dff36fbe78b827eb3fd758d476474f70d6. 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/QZPLS2130283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b410175917305ad5ae60691dbe358de20d564fb974a9cfde8b26b56f51f0b16. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/QZPLS2130284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4605eef3f34aee94930bd9a0a9e2a7f0d8575ee3fd184bc19831cef94ebde0b2. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T22:11:36Z), 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/QZPLS2130286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d6439a2a97f7eea5d0032afc8754af35fc9e6f4ba06f151bf48b6431a885b0e. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/US38Y2416452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bbcb6981abe83225a1847cd33f85cad64b47cbf4539f37ed4a039dbdf8a8617. Chain 2 (Bitcoin): anchored in block 958785 (2026-07-20T00:23:40Z), 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/US38Y2424136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ee1a6725858103d25cf3a4e4ad7695952e7383e19db0a7c09c8ed52fe8e3b22. Chain 2 (Bitcoin): anchored in block 958303 (2026-07-16T16:39:24Z), 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/US38Y2428552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea52698c378d475864d375a680531008f64b7957f1e5f9eedbf646dca4d4cd11. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/US38Y2428551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d48ab904234973420394f0d3dabb4d46d4ac0b28808adeb4a484a4deb121acb. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T07:20:21Z), 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/US38Y2428553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca5a64285e9abf0ad056d8eaf246a1bf558188cfc870639ce02eb74ae8725320. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:44:05Z), 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/US38Y2429386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb8d91d653549a4ac8880228c6a263753ff273ade7f93e32420a865c6b087151. 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/US38Y2429385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6aeefafc31fdb42fa49fb5a1b30508a69ff50c6275235b9db23834c68c9469fe. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/US38Y2429388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6df41eb60127a54b68f93522d43eef70a288979e135c483c5a126fb9c2e8c6f. 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/US38Y2430403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb88e661be3b97c118db921931fda120e5672b3200b1eead817b58457ff37f59. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/US38Y2430407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60b93c1a0f58aab50c0292987e142713a2a5f00bcbdad675ed2707f1794c78c1. 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/US38Y2432255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76c00d58a5bae832b5b6bcebab2ce855ac8e26846403ef27cc61f0b8d3d5af3d. 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/US38Y2432254.