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 0xfd6dba1dabd7487e4d66a30f4877836737fd28d17a1fa4be7991e4c25e8ef1c1. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/61ed5be6-21e6-44ad-a732-655393e696ab.json and https://artists.proofprofile.net/proofs/artist/61ed5be6-21e6-44ad-a732-655393e696ab.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 0x40d4cfbe8737cdde62bc9c1229895375f56784df7003486653a17d30c7c66db1. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/QZNWU2449327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe33af92159920c8c1f2292e6abdfb96e6ea52f1033040b3ebe85394864af7c8e. Chain 2 (Bitcoin): anchored in block 957756 (2026-07-12T21:36:27Z), 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/QZNWU2449328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafbeb6b410e23270b565a5cfcfa428126809ea2b40ed8f7a1e34e438c42a65f6. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/QZNWU2449329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad3524d002b93e2189521d059080d7c1a6d4bc6b6a0210447023bd58bcd29543. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T02:31:22Z), 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/QZNWU2449330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06ebe01a8634bb21aadc21c862d12eb8bca58f7cb97d59c018a065e9de9e6e2b. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/QZNWU2449331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeefb49f78d824dc0116690c405faf1c4e77e64a84fdee9f99ffd29b005ff4e99. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/QZNWU2449332.
Eliza's Unicorn Kingdom - (Dance)(Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd4d0691ac5d3f4dcdd4296e2dc6e9594570a76e96b6fd18c8c31fefdd042f30. Chain 2 (Bitcoin): anchored in block 958793 (2026-07-19T22:59:45Z), 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/QZNWU2449333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0da59093a8470143f3b6fe3f79947481006ec3766983a6504d5ca60237336dbb. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T16:08:44Z), 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/QZNWU2449334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81d054f495bfaf151975f1627e69c56b1b36ea641fdee7c20522144c83bac26e. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T16:49:48Z), 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/QZNWU2477606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ff1623c050a8dc4fc2f5795ccbe6e7b0edeea29a75709b579dbf360e24c3c8a. 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/QZNWU2477607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73b1dfc9757b78fd101b635c0f158d09edd58fd9100058843d794c3b51221482. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/QZNWU2477609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a0b86fb5b00725c04d31c8f1a1f84e457dbf6495cf1ccead9458282fd6486b0. 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/QZNWU2492326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x882af2f9dbc50b495f2f97d8da8c3f51a78367a58f59a0328e11c841a67d35a5. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/QZNWU2477646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7e1d8ce8f44bd7f6af91f35754cd96d38d87049ecd3034284ecc79b33da2c19. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/QZNWX2456621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa93f47995e9fa1c5784979e14e54a3a564ae783669188c55c4bbcb27dd7abcaf. Chain 2 (Bitcoin): anchored in block 957752 (2026-07-12T20:53:32Z), 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/QZNWX2459730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1671733e31af276df791cac17b996723d2504e84d947291a2b361d53d1250657. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/QZNWY2425865.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6312c659e8c9c77b5b397eeccc92329b49979a19d92f9ec286ae92ef36e6cc3. Chain 2 (Bitcoin): anchored in block 958075 (2026-07-14T22:55:31Z), 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/QZRP52477717.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d41da64c5c8bbf90125a0617acb06ccc4d2c00857c98bd56f37ba3883210235. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/QZRP52473853.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb7e88647824af3c9a95551f0e9c394ccc22ebc5e86877195d0eb612190217bf. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/QZRP52473854.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ebc02e0addc2a22fceadb0d2c78d33ff7d3a23c2496263dbd67814d886096ea. Chain 2 (Bitcoin): anchored in block 958075 (2026-07-14T22:55:31Z), 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/QZRP52473855.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bf60084823cdb83ef6ba64eebe2432de243ce66cd8f74ea5ddaadf077d7d6cf. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/QZRP52473856.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d94608457573d2f9f806825fcb03a40dc015f2a643e15b2a57e0b39b28f3d28. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/QZRP52473857.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5ba7ad8d754e0f3a7d158ffb33bdf9a18bb76588cca56ab452391884cd7eda5. Chain 2 (Bitcoin): anchored in block 958075 (2026-07-14T22:55:31Z), 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/QZRP52473858.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c827fe3a788347beab4e09f3c131db339841b977210985cc2d0d6346d3c07e9. Chain 2 (Bitcoin): anchored in block 957752 (2026-07-12T20:53:32Z), 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/QZRP52473859.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d8686704014bf7aa307fe18d9cccee61711ae5926b765aaaf1621556b66d41e. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/QZRP52453142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc22b9080338f292068af718f549949aa57e323bb50db5b960e9ce54e8e51e835. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/QZRP52453143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1819839831148150d68c3db241f5b1aa29c42ba35573508ac1324b6d76abb96. Chain 2 (Bitcoin): anchored in block 958122 (2026-07-15T10:31:33Z), 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/QZRP52453144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41e56104cc918924c16160fc94a68d9daa07ea88093e3c85f0285448d8344385. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/QZRP52480667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe0024eebda87cfede699e7d1769f0ec62cfdb41f9bf5b52d2545d4b41a95391. 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/QZTAY2436033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35a64ce18ca8ac4f6914a9764093394660e6dde20c573eb61e561f7a430dc49a. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/QZTAY2436034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf63602e3bcd777db0c515cd44089d0182b97b79abe9226056c2fcdf43ec5edf1. Chain 2 (Bitcoin): anchored in block 958075 (2026-07-14T22:55:31Z), 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/QZTAY2436035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbca88a01350fcbfab3b55b42a053c47ac4e75551c68ff05c92b87f7050d19f9. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/QZTAY2436036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d0891db7a81851bbbd84e85058d0b7dbf4fdd208522fad06e58c3b449261ae4. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/QZTAY2436037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e9e333c0989be4a8bb3fa4c6f600ec64cbd47383b6e2e062be9e43dcaa1d6d5. Chain 2 (Bitcoin): anchored in block 958083 (2026-07-15T01:50:31Z), 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/QZTB82408041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80721dbe6e40a8acd048371addb3e5ef4ac043a6c8592ac347c1da2bb88a23aa. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/QZWFH2474956.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff6929fa2ab3ec1bc06c283af0e2fd6b322eacd0aaa4aaadd7db50c1a21498ae. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/QZWFH2474957.
Love Lost in Time (Whispers of our Heartbeat)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77627f132c653deeb996930362a6227148e8864a37a7543a97cead96fe9e3e98. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/QZWFH2474958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19d4066cee8f190f1479065338e44f9e31d153e1b05366b3eabb041bf7651de7. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/QZWFH2474959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x811b27208aedcfdac29728e91918c6ac426ed51f1aee00345148726d2ef855b7. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/QZWFH2474960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69a28603481dc693e8ed87113b1079509c6ee06b080350dd71986804c1f1884e. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), 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/QZWFH2474961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cecb590e52edaa59c2397adc256ff5c8af1f4c51cf2c8f3a49a0adf41ff61df. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/QZHN62589203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdfba302bb2cd1628fe52e42e4dc6179a0e1307413551020d91b912c3bd74fae. Chain 2 (Bitcoin): anchored in block 957751 (2026-07-12T20:41:42Z), 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/QZHN62590401.