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 0x3147b8fb1eb4de78dd02e6b92d655d03c5b794acac97d0e866a23a707cae586c. 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/ccea3a4f-872b-4c1f-bd9a-f05ec5344107.json and https://artists.proofprofile.net/proofs/artist/ccea3a4f-872b-4c1f-bd9a-f05ec5344107.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 0x2d5496e4b43233f89e39b495b610ae1d973f13a23b3db8cc1900cb157582839e. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/QZMEM2069779.
We Are Having A Glorious Time Down Here!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2087df7a3371579d551aa2c4d5779885baf196126d1811bd2e3bc8983825d472. 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/QZNWV2246712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7b590c007f19e44f8ef87ac5c5cf7d0a1330f306267ac01693d9e27eb1c26e4. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZNWV2246713.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1213afe0830b499c0241771ed1d7eba819bb2286c22542afb9f42f741dfde07. Chain 2 (Bitcoin): anchored in block 956620 (2026-07-04T07:11:13Z), 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/QZNWV2246715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e4cff718fae1029de686cdc07ed35cf9bd67edacc02a13e7a2d9baf9e2ee58d. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZNWV2246716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf814e11c1393880045ef75f4e2c495ceffe986847c0cc01ea05c9fd1133edfee. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/QZNWV2246717.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3d2f5c5be3284f657cbeabde10aa55f594ba6d89f48b95632b01d4ed1793cb6. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:04:32Z), 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/QZNWV2246718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca9a7e81c0616378460ef4d31491c02b2d69d11731cd3eb7b8a1664cf3e6de10. 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/QZNWV2246719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34ebe686eae1ee5b0e5441949205f775051425ed200c23eb7f67a4cd238e7b6b. 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/QZNWV2246720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x283c46e9d744dc07f70e7c93eda69d4fbd477b3f7b78e61f796d15e67fb24295. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/QZNWV2246724.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c91dd84ea2db2c6dfb6104a6bfd9c0967f9406a3f6140e1948dc294c3d01392. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/QZNWV2246726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2f3452514d2e567fa91e5effab7f49b86eb4489516836e9cdeb202328ac9d23. Chain 2 (Bitcoin): anchored in block 956430 (2026-07-03T02:22:42Z), 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/QZHNB2309464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad07bf4640f260d9c6355f8c4ca4078936aab647cdd7dbd3684f05f7a257fc7c. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QZK6F2370103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fe88e4897c0137cc1a51ce05caf85255239be5004cccab1026d3781b3935fea. 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/QZTAS2380447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc590886335aca68a3b307851fb160aa404c38ffcaa1cda582131e6666f66f077. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T09:16:54Z), 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/QZTAS2380448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37cb66e0b05380e0a7b8574d7fd06c455834b34e231e9dccd45bc1ed10753556. 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/QZTAS2380449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15866f43e553287de815544614e67fe44309be609ea7d9417f510039555df4be. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/QZTB92465874.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cbee23c122aea047f07d6172f10c78c69f286d675177274ec4039844bc22647. 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/QZTB92465875.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd6b98927911bc13ecc8a6ba87f8ee1cff8b1c398742660bc994d61d42cdb89b. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QZTB92465876.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0edbd99dbaad27e2b28365a3262a45a25090f33076e6660da0478bc5a0b6aee. 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/QZTB92465877.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfa1f4a4e4774b1eaaa2953e9e93a6569f2c8fbed46645f8c8041f41c4f8058b. 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/QZTB92465878.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78f9ff01f9325fc917d6b17ae43e9c7406605a1c3e1ea6fe511566364ced2a77. Chain 2 (Bitcoin): anchored in block 958355 (2026-07-17T03:11:50Z), 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/QZTB92465879.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7973d7e945f75850156d5b5c4ed2d89406e1471f74a5cedef45648582895ab4. Chain 2 (Bitcoin): anchored in block 958788 (2026-07-19T22:07:06Z), 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/QZTB92465881.