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 0x1dc4092d5a2d8ce6eee062f5793926ee5bed82facfcfcd5fec0985af474b853c. 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/cebe7ec0-7742-4dfa-816a-0b6a2abe4498.json and https://artists.proofprofile.net/proofs/artist/cebe7ec0-7742-4dfa-816a-0b6a2abe4498.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 0x300e91eafac378257710def29bd97b1e89e595301ef9d098d5b3b1857e31df14. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/DENL82330456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39f3e84faa86eb2afd1fd24ef6153509e6f42c2ad29ecf983014b3ebf515c33d. Chain 2 (Bitcoin): anchored in block 959094 (2026-07-22T03:33:16Z), 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/DENL82330459.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b26db6a45545bc52c7581e858b3931821174a0670f4052c4ae1d7a861d36eeb. 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/DENL82330463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x616cddcbcfb5fe67e96200240d66dfc4a3e127acaf61c0ede6caca47d9f0fb13. Chain 2 (Bitcoin): anchored in block 957810 (2026-07-13T05:55:46Z), 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/DENL82330465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56150a1940b16664192ac5aab23944f462e1bf45f79228195ccb38497f119fdd. Chain 2 (Bitcoin): anchored in block 959065 (2026-07-22T00:42:27Z), 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/DENL82331027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd059e1f99648bafeb3cb2c1801900600a0cf216e2314735f7b9669242060673. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/DENL82432129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba9bb242315e3f9cc34d301aa5fea46bbf1603aae5045d4c25a97cee33015fea. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QZFZ42589932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf8aa47481ad7bed0b4d12b9e2b4bcc06fc6d1448e00f34db9eea4951166610b. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T23:58:01Z), 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/QZFZ42589934.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5f7ca011c12c9017557074614b117962447bef585c57f6f71213a99234a8b7d. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZFZ42589935.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3e340aed5b0d37583980411cc29009d8d7973ca189354f02e7fe78267b2ee4d. Chain 2 (Bitcoin): anchored in block 958568 (2026-07-18T15:23:47Z), 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/QZFZ42589936.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x479bbc10767b278a6dad2274fdde9c52f84644ea530af141e5488351124ac332. Chain 2 (Bitcoin): anchored in block 958474 (2026-07-18T00:59:09Z), 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/QZFZ42589937.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4157b0ecdec038f4dcdd3d2f9006b5ecae763ae97b44fb975b7df4589ba92a4. Chain 2 (Bitcoin): anchored in block 958346 (2026-07-17T04:17:45Z), 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/QZFZ42589938.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x890b519639c953f26195e514d782ac3d73ffaa9fc3436926af7b417f5f9b36ab. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:54:36Z), 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/QZFZ42589939.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb71ebbf911fcfe96748d34d4499a08907133a57fff2ab6e0d85cb4713feeafaa. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZES52558362.
TILL THE MORNING COMES (Extended Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fd13d894e25c93cbefdb1d3e0250ff4eca8d0de0194fe652ac3b6f63dab5c5c. Chain 2 (Bitcoin): anchored in block 958384 (2026-07-17T08:27:02Z), 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/QZZ7K2564466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44e7ba05096ee2aecfbcf5d6f39ab0619f50f961fe1be5ba64e4431ae2ea64e7. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZZ7K2564467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39a3e520ec31a8db6a8dcfbc25633597b695854c1c94c6b909963563521f5364. Chain 2 (Bitcoin): anchored in block 957788 (2026-07-13T02:37:37Z), 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/QT3EZ2581375.