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 0x4ffb6e4786cc22e48307129334d0b82d7074099fc5ca3b21cf6d43e1b8bf5936. 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/43d9373a-4186-4712-86a0-e0f2c4e07455.json and https://artists.proofprofile.net/proofs/artist/43d9373a-4186-4712-86a0-e0f2c4e07455.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 0x8f948e1d91c42e7f87448a2ae89ff253da203b83f92a2fba40a77b32f922e441. Chain 2 (Bitcoin): anchored in block 957759 (2026-07-12T21:46:51Z), 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/QZES92568929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x962cbc6b94f0afb9a6d132b358eff76d4c4affe229e994b2c7cc31ddd7670d4d. Chain 2 (Bitcoin): anchored in block 958091 (2026-07-15T03:17:03Z), 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/QZES92568930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b137ae8715a2f54e8ab9524d5488ce227d306fe6e2596f73334855a70063034. 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/QZES92568931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4097918d24acc97492a008ea7511b6ed5ddc245ed3f89267282620d2c5a3e2d. Chain 2 (Bitcoin): anchored in block 957767 (2026-07-12T22:25:13Z), 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/QZES92568933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffd908d9a724991a807450496175c24093db807209dde1ffd00d1787768ab5b0. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/QZES92568934.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x380c189cc904996b1978adce939b01d14208c04b7d01362b3c68148f2f5a704e. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/QZES92568935.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabf4914bf25dc98f5088a6d8b3e8e7fed59651cd7c86ef74465e8c4d1a2dcebf. Chain 2 (Bitcoin): anchored in block 958303 (2026-07-16T16:39:24Z), 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/QZES92568936.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ff0823e7d466680b4057e1c81a9618b58b9c47fb359d3d45dd61622f9ccf123. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:01:17Z), 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/QZES92568938.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeeb66ab3a38dd9db510878857084a3948be04d01b527a27ae31db3d22e0172c7. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T13:03:37Z), 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/QZES92568939.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ba5e2c77ddb06adc11109001717d0506bc5527971146c789917d9939a1a9a5a. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:32:01Z), 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/QZES92568940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96cc1f739841d6d07b5e9c028b39ddb9338dbbeac0fae5ab48d3710050be9630. 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/QZES92568941.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6559aee89bc159576d7a5c833457ba2c36bc6ec951b482296b099d737a62528c. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QZES92568942.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaf58e16cd33515125a0ba615412ea81d38912faa7c2f62b79e3f7c26c346548. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/QZES92568943.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49c4e8bb30c5ae6247f60b92fa649d6459be8121ebccef9d874d8fa00aebba1e. 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/QZES92568944.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f6388a7eefc719c7bd82e01ab9ddb31879b45745450eab3dfc778d5e50f41a1. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZES92568945.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bada6b0054ac81234df3d31da0abf900d7549c979d3d975a2f3683159bacb3e. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QZES92568946.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x327fe52302f28bc3c340910d4c091b0167c89bdd63918c7471b71a0f4173d8f0. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QZES92568947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdc3aa230be92f259f17aa4165fbd5dda5ca0f7ca783211adec089f0b160d544. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZES92568948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5865d4b56e0fde4f846895f5c89008313ade4285f729ea251948252a6891f7a. 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/QZES92568949.
I'm standing on the rock that never fail
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24f0f4f0c873fb1b5ef9bacbd99fb4d18a1590334b8a9437cc2291d38a18ae10. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/QZES92568950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9e9d868c91d5704b86db0c05b40a600915dc7656013ac35083d409578c61e6e. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZES92568951.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc684707123417b88edfdb5645532e65e3f39ac67a17dfca590d5b1958a0aa516. 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/QZES92568952.