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 0xbd2a97daa3f592a074ded6e2970e6dc9220d1585917035c0510f4e17fee627fe. 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/e287b641-b24e-4954-bc1c-6064923c3af1.json and https://artists.proofprofile.net/proofs/artist/e287b641-b24e-4954-bc1c-6064923c3af1.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 0xecefdfa7570731cb07759506c911c770efc713bc0bb2a12888191f00e5db9619. Chain 2 (Bitcoin): anchored in block 957663 (2026-07-12T05:58:46Z), 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/QZFYW2155106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e0ae5d6e213383fc5b5e15ed16a8ba43695f71bac97886aba8de975f8b87ca9. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/QZHN62131653.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x886b09e4538d409c7e9a9d3b7aa517e4b55bbed5b93bf8b4794a98fd658dc9d2. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/QZHN62131656.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7ce77a9eacf8b93c7c9eac30ec283b82f48187b9d325a0f85c3d769e6bbb8af. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/QZHN62131658.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fcd1a6c5125f043eb97f2cd36df2ddedce10128f780778316a83bf13215cf5d. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QZHN62131661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4613e7b916be564f710f124cf76074d2ce09ca9239a9c22438d9acc9febe33b7. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QZHN62131663.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd05d688505adcfe733cb39bc9a65848f10e66b44e1c7e17378d4e4eef0f48f9. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:41:10Z), 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/QZK6H2103292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39661b81849d7510962c74fead0a0ae4fc626cae994f60b104e68d03ebeaa481. Chain 2 (Bitcoin): anchored in block 957658 (2026-07-12T05:03:28Z), 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/QZTAS2161646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e6a57e10d863c5b38b4a69b35e204bb0597b532b96816d809aadc647ae1461e. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:29:34Z), 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/QZTAS2161648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d3f0585ac17fef1e8a5c57410ca964aac47fcfdad5145251569b33383fefdbd. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZTAS2161649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4709bd8462889d4d0a5dfae195818696674795baf7a2fc74e1afa68a481243d. 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/QZDA62298861.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9b8638e87ba5fde039c9a2433340be1d55a6860c8fb1e11420653aaed067872. 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/UKG8V2202496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf02c6ee6cee19ec18399bf00927eee8cb20b03c91372c8b735d38c62cecf971b. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/UKG8V2202565.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cba8de079a0b38a5674f04ea6f9d6a80ded41d334951e7974838ca5f18b2320. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/UKG8V2202776.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaccefccd93e5a23eacc226294f554b39f09d6018d9bb4fd6a98673d9321610fe. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T18:04:55Z), 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/UKG8V2202970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x364583713e83eac1a7db59d602da39cd6dac36b5e833f8c4de679a1ec8a4c1e1. Chain 2 (Bitcoin): anchored in block 957658 (2026-07-12T05:03:28Z), 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/UKG8V2300937.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x548c024e65f74b134e71d1290e41862132d0843d2e4481eeca947e00ad550624. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/UKG8V2301293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55411dd772fc0b531c0bad138a408fa0bd542563063edd5b9b1bd48377f4901c. 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/UKG8V2301596.
Never Gonna Give You Up (Bardcore Version)
Never Gonna Give You Up - Bardcore Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd434b8df9e2444689653880d26cfa00a4afbb24110240735064694843aef0d5e. Chain 2 (Bitcoin): anchored in block 958596 (2026-07-18T18:42:38Z), 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/UKG8V2302988.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93208672e758c13990a31181916ce938214ef52e88351b7382af88831f95ff6a. Chain 2 (Bitcoin): anchored in block 958945 (2026-07-21T03:18:45Z), 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/UKG8V2313336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7816462c8430dda7ae9d910b85aacfb98b1f5b160c1c6cda9c871e2aba9884b5. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T02:47:04Z), 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/UKG8V2400426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a8dac6966641ecb936d11a4b1c93940d50166a6c3096f55140b3a69a14c86ba. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/UKG8V2313699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bdfa8e7793ab8a0fc67ccf785b57c876b812104bc44bdf4013f45b491eb433f. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T09:05:23Z), 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/UKG8V2400396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57edcd990cce6b761357f9820475a2d9c4a07c0fa8db9fd47cc38ae4460d4539. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T02:18:39Z), 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/UKG8V2400803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x441753a448b682fe312621d4cccdbe6e4224ec57d6ea3021f598fb62c082caba. Chain 2 (Bitcoin): anchored in block 959084 (2026-07-22T00:50:00Z), 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/UKG8V2400935.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fe8ea64680c04c235e50dc319dda16d38ae70708ca20061a473360c3fb4e6a8. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T07:09:14Z), 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/UKG8V2500007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a32d15f24007f44a13611f68864412b73e6742b62c2972912eb8539af26b74a. 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/UKG8V2500058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a32d15f24007f44a13611f68864412b73e6742b62c2972912eb8539af26b74a. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/UKG8V2500058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c246e54b017101718458a474f4bec6e5d665f3d8af1ab2a0ba7ec8f8eeb2a6a. Chain 2 (Bitcoin): anchored in block 958639 (2026-07-19T01:18:30Z), 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/UKG8V2500059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8807e326db6da897b9c9a00633234c2af7bf820fefd80d3136d41174d83b262. 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/UKG8V2500060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf5e799e6d93d34230b05c548cd140a5e26199b2f59d97970f1e56788121c9c7. Chain 2 (Bitcoin): anchored in block 957785 (2026-07-13T01:55:31Z), 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/QT3EZ2586184.