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 0xf1a994d92e17c3e39c113154749cdc000d7a10fd8fe94da03ae02946ea3d8002. 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/664c4d80-a1ad-402a-8c73-0367f0fa1200.json and https://artists.proofprofile.net/proofs/artist/664c4d80-a1ad-402a-8c73-0367f0fa1200.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 0x3a783fdb97c724d544b60f2cc65a5038536ee9be7d205425164e7551a5853983. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), 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/PTUM71300681.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a74111a8895dc4738b2f1d4225a9710cad83bf744746b19e984d42f266ff47b. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T23:52:46Z), 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/PTUM71400424.
As Histórias Da Xana Toc Toc No Seu Trolipop
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadef73ebcb60a3aa912633ed9582623dd1886758034030b9668a3072acb2f488. Chain 2 (Bitcoin): anchored in block 956578 (2026-07-04T02:23:20Z), 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/PTUM71700055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04eb1b7252b1146dfb87f9e38ffd0dc82e51caee9a055d7544aab8f768fcd048. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/PTUM71700056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc18d5fdbb08ff3a6234da8d195e2e99e8bdb8ac1073978a107694c9bf79f707b. 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/PTUM71700057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88a42b1248a8c722ffd8d129d57880dcf4b5e17996d495fc819357de120d3097. 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/PTUM71700059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5283a4c1e8d34fa52c78ccd120a80c3135990310a11a1055a7a32f845f02d57d. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/PTUM71700060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34259e56169e3e672fda8fac4791beb24f991221e479e2ff1cba3b10aa3e5b29. Chain 2 (Bitcoin): anchored in block 957771 (2026-07-12T23:27:28Z), 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/PTUM71900116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x754b15eea97718145b8768cd1d4673939986965750b1306708e242ccb1e06c0d. 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/PTUM71900117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79dd2144dc51833aa66f7d8ee32c0d6976e4f808853b9ee7890d4e9b91718d8c. Chain 2 (Bitcoin): anchored in block 958514 (2026-07-18T06:54:37Z), 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/PTUM71900114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbde8fe57be24a2fb6e1bd1026178d2abe1d9e51ce3bcd557acea29ab3a5595c8. 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/PTUM71900111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b8072773dfb81f402421a58eda5fc331ddc27faef7ea32c5b9bb78078d6d1c1. Chain 2 (Bitcoin): anchored in block 958756 (2026-07-19T18:55:09Z), 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/PTUM71900112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05462883ffd9091c93a8fba18c5f9c6734a591125ed26fba002294350e9981f3. Chain 2 (Bitcoin): anchored in block 958095 (2026-07-15T04:30:08Z), 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/PTUM71400419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b1ac76b2be31ac11c0a3e21cf98476ec07ea49a01b97a6255c0ed576b26bdf1. Chain 2 (Bitcoin): anchored in block 957771 (2026-07-12T23:27:28Z), 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/PTUM71400418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf765f3511d3e7523c250ebe725aeb07be19669e622d8a775aa44508fcf63055b. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:24:00Z), 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/PTUM71700051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2962e6a34d094166a7ec03678bc5a04e30f0281ff8c7661480adb0ad122c52ad. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/PTUM71200240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb50e5099dd808bad9ce9dab5488d681065eeb99ac85719d16ca22089523611a4. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/PTUM71400423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a4c864422559376cff3d119bc26a60332bd8c108caf3e8ae8826a3c35cd18c2. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/PTUM71300690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa68a6822b9899b2519a6a4b717a41874f0f458023107d099a9b625677c06f579. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T23:15:29Z), 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/PTUM71700054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7316fb6f9dd4450704c1ac7eb04adf6321aac9195a32d04770e007be3a89208e. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/PTUM71400427.