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 0x60008726d62b7c894106f696821a99674bfc1d0e0d4ae9a5ee1caaf4e10ab23c. Chain 2 (Bitcoin): anchored in block 953699 (2026-06-14T22:00:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/63d17cff-3922-4d45-ad3c-923184cae9fc.json and https://artists.proofprofile.net/proofs/artist/63d17cff-3922-4d45-ad3c-923184cae9fc.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 0xc1ce9e15f796820c05564722c4c0bcc6018cc66143fd5283aaf213e4a2dc83dc. 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/FIECL2400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15e58f353809f8a962950681aff8d80b6968ab3c6146feb3cd9fa3f39ab8c59a. 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/FIECL2400029.
Tytär Inkerinmaan III - Single Version Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4e3f3856c8edf1713570b34e20cfb3ece38b55b3614ef5029a60131e85d83ee. 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/FIECL2400049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5d6c35062e6e3af826c129c4d00ccccbfd2f79930c12026ad38d8e0200d3a62. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/FI7S52100007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x051f17be6ae42718797580dbbc8414cc3326e16d2f67600cff10502a4d10911d. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/FI7S52100009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9d58e3946d01beb77a382e27b669ef8f79b7e2c0d857946b03d5595d4567ae9. 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/FI7S52100010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d9e7b726ba9b7c3e6e9beec4021bdfa4f57abe3b9ba593b984aaf6bb29782fc. 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/FI7S52100011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x133f53d5345bbd0c8411a59a1a0e4e61b49c4b816c6815a9c5917e8c94fe91ee. 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/FI7S52100014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9d58e3946d01beb77a382e27b669ef8f79b7e2c0d857946b03d5595d4567ae9. 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/FI7S52100010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1ce9e15f796820c05564722c4c0bcc6018cc66143fd5283aaf213e4a2dc83dc. 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/FIECL2400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3f6da9441ed9ecb0a853710c9c409fea0ae7f1fe883175ff43c149e75a14d45. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/FITCR2300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd244d9b2dd3fcc92838b459439cfdce739b878f2a795fe72404c98e7ef4dacf. 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/FITCR2300005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58175f8d5a7bee06be23ef01a29c6dff8b5315c26147e21ea2238a2be1585b22. 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/FITCR2300006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1371a6e05993f91aa5a8e2871282ddfb86f9cfb1893782f44b5b394720ecc541. 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/FITCR2000002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62f289218f447c5117534e1df400bd17d199c6ba031917a029add68c77c780f8. 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/FITCR2000006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5db7ec8e0d43c3d8954b3c88da8576bac1406d720da10743347c80cf34335bd5. 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/FITCR2000007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21c577ae0920bae383c2de7779338c0067551598b507a544600e1f00e4045b24. 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/FITCR2000009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bb6e0ef2fe290e95f76f65e52855369b3f77ea821ae00f847a0cf03efd2f8a1. 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/FITCR1800002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18ee4b4ed5c1d03e8b8f405bd5ecb83effc67e8e26782e4fd19a0ef3cbb7d5dd. 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/FITCR1800003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd05b3ae1a1a00e41ab496ea8e81a5a1f4179378fa19956538ce91fd0bdc29c2c. 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/FITCR1800008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e7cb559ed41bd21844d03cdb501f7e91afb67714827012b69e0dc5811c3488f. 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/FITCR1800010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99e3a17bf8719c4fb86c662011fdbbb666c1deff8f70607d438d56417daf1f52. 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/FIJ231400005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6019dc88176cc74013bf2431a27d377a06c0438846b321f778ea5c9a5dd7886. 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/FIJ231400009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa94a3f7735621c895ecae13d2974f6490a1b3430d81e35d271c9f269b3fcbec2. 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/FIJ231400010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3f6da9441ed9ecb0a853710c9c409fea0ae7f1fe883175ff43c149e75a14d45. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/FITCR2300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1371a6e05993f91aa5a8e2871282ddfb86f9cfb1893782f44b5b394720ecc541. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/FITCR2000002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e32e138b699215276cf2e0351a64e2bf4594ff3e07f8a706fe2c45f6da2f363. 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/TCABC1177053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a552130125963ac617f5d66575266dc7be8bfa600505ae95782622d2464de68. 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/TCABC1177054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a400fdb8cce6f2fb34b70bfa265ec109d1957907c6da146c115a0e2e67b470a. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/TCABC1177058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69c6607d0840b89fcbbc27af6a175d6d8749b7726fb16106480cddf6508f61b2. 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/FITXD2200014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae8cedc945e0bddb4ea39dc5ddc4af5d479ed3afa802bdfeacd9062fe148b211. 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/QZFYY2443083.