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 0xbe993d6c327b7e47a43fb094fd1da708dd6529c09039fb386b506993e6ec6a21. 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/3cf04e7b-387b-49d8-a260-1ea6b634ea4b.json and https://artists.proofprofile.net/proofs/artist/3cf04e7b-387b-49d8-a260-1ea6b634ea4b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Grand Records Presents: Underground Heat
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 0x2222c371acd8cb091d4e233d797a5efc16b676ba7e8d8776659b66ff00ac8101. 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/US3DF2241666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8db93263077888fc78b26acbe0cf239540d5bbf1a2cc98f6817f4959c8c2bef. 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/US3DF2241667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x185efea498f98bbc3f555d0233b9701f12c1f83f8bd5a9d7e9a4fdad2c445c3b. 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/US3DF2241669.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47d019d8a85612a74d42b9142620448db2754790eb6af617e6c9b5e88026dba5. 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/US3DF2241670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb82bc60a89a532c79cdb778ce496f28afdfbc5ff6f4f42ef6c1351e398f17e75. 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/QM3DF2178308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b424c832d7b681454a2c2d549642039498aa3333241258a3b8f788b855ebfcb. 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/QM3DF2187682.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c4c417f7517cf9e283d2ac12a90ead7de618f05997b6c62f3ad6503f6da5d48. 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/QM3DF2187683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc0b40d3dda54a4cb2ad274286b9f316a7eb1902ea95ffc156ef2955597518ab. 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/QM3DF2187685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd95202ac7fea5bb4c210e014a806b47739c71ef65abf1402f601e74688ee27e6. 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/QM3DF2187686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f4587e5196631cab7e38fcc8697bf4ef6ff763303930766a4db4128ff517fd8. 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/US3DF2147260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc84041def6780dd4d46da64aa0bd1ebde605c569092a9116b28a31d9e2ecef7. 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/US3DF2147261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3e54c7898179548f12a80dc978df64ad94ea0955ec2538f02b70083eb14b85d. 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/US3DF2147267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb127d2014ee36be34306f3dde14093f31c92c52721ef6aff954cca1ae4452916. 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/USANG2253963.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb61635bb46dee6c6397226c8bc0c2072a7df549415deba9e1e633bb8f0caf8ec. 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/USANG2237609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91b6b87aaa6343be585ef0be6485b71a1952d04d910bff0d9c3e42187134df25. 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/USANG2235341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd26a7c7f2e73716e2c408b4cd31549726d58adb3ccc110c31e55cbfc4400bfa. 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/USANG2200962.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x076cd6aff9ea513eda19ea7a5ffa2acea3b40a701035ef1d67f169ba7b32a3b9. 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/US3DF2266942.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ff463bb60ef164e7db87c361300e7e6283d7a83006722bd45ab5322e8103341. 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/QZGWW2066215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x037521c1206e115ecda990b01ce933b768efd2fddb0700e45c77bdc29f1a8286. 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/USANG2126752.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9853c3f5a357da3bf858e17488df58f89143549569bb550725c1b7d4bdcf2776. 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/USANG2126753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3a7badfd6a3f8d8f65c40501aeaef3a3ed98e99b6632b83155ab54d79496cd4. 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/USANG2126754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad4b6d62dbcfe7b8d721f0bd70b682d5f5358c9e678aa438b2f4497ab0587d3a. 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/USANG2126757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x042543ddd520ef07884c8dc300182e53d6c45185ed56d6226976b7d433fdfcf3. Chain 2 (Bitcoin): anchored in block 957820 (2026-07-13T07:54:01Z), 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/USANG2126759.
Yayo Presents: Demostrando Talento Vol. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb4ad6496f4a90b06c95256629128377f88f90e2a17402a3342e0d6b191eaf47. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZES52584527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x191c62e85d6eaa0a3eeebddf4b9e3e07248992b23bed8c7f504227568e33d12c. 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/QT3EX2440179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa87bbd9b296ce32cf5e72d4f50d059567336454a06aff547bd704fbec142937. 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/QZZ7M2469071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb82bc60a89a532c79cdb778ce496f28afdfbc5ff6f4f42ef6c1351e398f17e75. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QM3DF2178308.